SCIENTIFIC ABSTRACT NIKOLSKIY, A. YU. - NIKOLSKIY, B. P.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001137210012-3
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 12
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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Card 6/6
W/PW/GC
@-mow

14(10) SO"-'1_08-59-2-8122
AUTHORS: Mineyeva, I.A., Candiate of Technical
Sciences; Engineer
TITLE; The Influence of the Heating up of
Reinforcements on the Strength of Rein-
forced Concrete Structures (Vliyaniye
nagreva armatury na prochnost' zhelezo-
betonnykh konstruktsiy)
PERIODICAL: Gidrotekhnicheskoye stroitel'stvo, 1959,
Ur 2, P 33-35 (USSR)
ABSTRACT: Research on the influence of heating up of
reinforcements on the strength and hard-
ness of reinforced concrete structures was
conducted at the Moskovskiy energeticheskiy
institut (the Moscow Institute of Energetics).
It was found that the heating up of relnforce-
-t
t 1,
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e
tion currents
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Card 112 3
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14(10)
SOV/08-59-2--8/22
The Influence of the Heating up of
Reinforcements on the Strength of Rein-
forced Concrete Structures
hardness of reinforced concrete beams
(figure 3). The amount of breaking load
for beams with periodic profile reinforce-
ments depends little on the temperature of
the heating up of the beam (figure 4).
There are 3 graphs, 2 diagrams, ? references,
4 of which are Soviet and 3 American.
Card 212

SOY/98-89-8-1113a
15(6)
AUTHOWs Nikol I SUZLr~~,Yu. t 15agineer, and I.A. t Caadidat* of T*ek-
T - _
--Slc&Ylc @aces
TtTLZv The Ifff act of Moat on the Mardness and Durability air rerro-Caacrat*
we"a
PIMUCALe Gidrotekhaichaskoye stroitellatye, 1959, Nr S. Vp 45-46 (UM)
ABSTRACTs The &rticle describes tests carried out by the Chair of NydrawLic
Construction Work in the M11 (Voscov Power Inatitato)) on the causes
and effect on ferro-coacrete of heat (up to 2500C) generated from
high-power electric cables (up to 11,000,awp*) installed In the
steel fr*Aevork of the concrater they showed that the hardness of
farro-concrete, exposed to such heat van considerably, lovered. The
experiment was conducted on farro-conerete beans messurinC 150t
200x1, 300mm, reinforced with, in one cast, ULrk 6 atee,10 and in
the othert or round rods of Mark 3,steal, of the same dimensions.
The asnembly equipment was &Lao made of the saaa, mataritl, consist-
ing of 2 6m diameter rods amd a. hoop 4= in diameter &ad lOOM".
Card 1/3 long. The compression of the concrete, which was in Llt cases iden-

BOY/99-59-8-11/33
The Uf*t.t of float on the (fardness and Durability of rarro-Coserate be""
LULL, was carried out by an 1-21 vibrator? white the durability
varied between 150-200 kga/c&4. Conditions of hardening Varied,
one group of Lost boom* having been treated In & steam chamber at
temperatures of TO-SOOC for 49 hourst the other having been harden-
ad under normal. conditions at 16-200C for 98 days. Tho:b*ame wars
subjected to. heat in the form of electric currents, of ROO-ItOOO
asplit the heat being maintained at the required temperatures for
3 hours. T Lenperaturea Y&rie 9r thebeanx reinforced with Mark 5.
steel being heatedupto 80 C and 230OCt while thoso~ with round
Mark 3 steel rods were subjected to temperature& of 800C, 1600 C
and 2300C. The test& were carried out on a 50 ton universal by-
draillic VJM__50L machine, made by them Kharlkov works. Pressure, in
the Cam of 2 concentrated weights graded up to 500 kgg, was sp-
plied to boam* and continued until they snapped; the results of'
the tests on beams retaforced with Mark 6 steel are given itx table
1 and fig.1, and show that the breaking pressure varied only slight-
ly when applied to the 2 differentlN treated bettax. rig.1 comparew
the graph* of the relative pressure of the 2 kinds of beams (steam-
Card 2/3 ad. and cotd-tremted)q, showing that the vmriatiou in the degree of

sov/98-sq-S-11/31
The grfect of ffoat, on the ffardness and Durability of Ferro-Concrete Room&
sag, which, was greater in the former type than in the letter, par-
ticularly at low pressuref decreased && pressure increased. L com-
pariaon of figs.Is. and lb shows that the method of hardening has
little effect on the degree of gag of bt&mx tested when cold. The
graph of the tests on been& reinforced with Mark 3 steel is given
in fig.2 and table: 21~ which data shorwa that the durstrility of the
beams was considerably lowered even at 1600C, and that this do-
crease, roe* iven moretteeply aboyo this temperature; tig.2 shave
the relation between sag and pressure and temperature. ConelusLoas
drawn from: the experiments are that the shape of the steel rein-
forcement, affects, the hardness of concrete; angular steel is more
resistant to pressure when, heated, but is unaffected by the method
of hardening and testing. Thereare 2 diagrams and 2 tables.
Car& 3/3

Illowarr"k.u.6 insh.
Matorsdaing the footing also of Occoutrt0lillf 146d"
fosafttlems from chartse lawb.54p. KIMM 219J~1-3"
159. (*Wlastlus) (MIK 13,tul

INYWRlY, A.M., karJ. to-tUn. iihuk; NIKOLI.-,Eill, A.Yu., 'Anz h.
[Vaterlala for tba calculation of precast prestreared
elownts for reel =atlon construction) Vaterialy po
raschatu sbomykh predvaLritellno mpriazi-annykh kon-
atruktaly d1la reliorativriogo stroitellstva. Votkvap
Giprovodkhoz, 19C4. 86 p. (VUL4 160)
1. MOSCOW. Weawfuzr*7 proyektrio-Iryakatellukiy i
nauchno-issledovatellsklY Inatitut.

LY11,111KOV A$P ft.-) A.Yu.9 !rxh.1 S AYRA*fi Y.M., inah.;
Maih-reinforceJ cf;r-,-.rnt#i on hUldirg sitei of vatpr dwrelopcont
projects. Trady G-!prrvodkhoza no.2603-123 164, (WIRA MO

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r.E.g 11KOLIKLY, B.A.
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bat. 26 ms*3047-350 *-J* 157. (NIVA 10:11)
1. Zs noel terse-apidmiologtahemkoy stantelt Moskovsko-Orrushitor
theleavAr dorogt (vach. stantatt I.I.Xogllovskiy).
(URMS.
*mdtantlas tu *J6918 MO)

o NIXOLISXIT, S.A.: DUBIMTSKir. re.l.
Untrersol Ovault"T cambiaO. Isabr.1 rate. ma.8t" AC t58.
Wu 1119)
1. SotrudatkI Tnogoyugwgo muchno-Iseltdovetollgkogo lastituta
sUktriflkatelt solleko&O khas M stva.
Traro equipment)

wir.o.wair., a.-A,
CAS-01 mobile distafoating apparatus. ToUrtWUs, 37 50.1tW70
IS 160, (KIA 16t6)
1. ftuddy MerlmsrW vraoh Gosudarstv"Aogo mum&okanstrall"o
Institute velerinarpykh preparatov,
(I!IsIaf*Loa ad disisfostants-41quipment and mnUfs)
I"

t r i
113 Jour : Pelf Zhur - Fixika, Ho 2, 195'( llc~ 313C.
Author : Alpers, V. V., Barkov, L. H., Geresicove, R. I., GurevIch, I. I.,
t K. N., Ulkal'skly, H. A.. Tiopor-kows, X.T.
Title : Production of kovlr;3-~xonz ~in -he Nuclei of Photographic Ecuslion
by 460 Him Protons and Neutrons of 400 Hev Effective Energy.
Orig Pub : Zh. eksperia. I tear fiziki, 1956, 3o, no 6, ion-1033
Abstimat The emulatPn-camers procedure uss used to study the production of
charged 7r.-:t* sons by 460 Vev protons and by imutrons a.* WO Hev
effective energy.
Card 1/1

AUIPM, T.To[d*a*"sdjm HARM, L,K.,GZRASIMMA. R.1,; GUMICE, r-lo;
KISMUrA, A.P.; KUKKIN, IC.K.kA ! MM. 3. A.
I, ~ .. 1 -.-OW1414
pr"Wtt4On Of SIOVr-wsono In photftraphic mlei= ftelat by
60 New pratcme, thureetip. I toorefts. 30 no.6tlOff-1039 go 056.
(an 9110)
Oftsous) (Nwlear retwtions)

SUBJECT USSR / PaTSICS CARD i / 2 PA - 1955
AUTHOR XUDRIII'L.P.0 NIKOWlay.B.A.
tion betwe~_W_fa_st Pions and Nuclei.
TITLE The Interao
PERIODICAL Dokl.Akad.Sauk 1119fasc-4,795-798 (1956)
Issued: I / 1957
In the course of this work the results obtained by computing the nonelactic
scattering of negative 160 UeV-pions by the nuclei of the photoemulsias are
compared with the experiment. On this occasion the assumption concerning in-
divIdual meson-nucleon collisions within the nucleus Is accepted as being
correct, which is also indicated by the experimental d4t& available concerning
the nonelastic scattering of plons by nuclei.
Experimental data: The authors used the bundle of negative plons with the
energy E. = 188 + 6 KeV emerging from the chamber of the synchrocyclotron of
the Institute fo; Nuclear Problems of the Academy of Science In the USSR. This
bundle, after passing through a deflecting magnet and a collimator Incided
upon an emulsion chamber consisting of layers of 395,;4A- thickness. There are
30 of these layerso The atare found in the emulsion chamber were selooted so
that the experimental results obtained relate to E - 160 MeT. Togetherg a to-
tal of 1185 act@ of Interaction between such negadve pious and the nuclei of
the photoomulsion, among them 323 nonelastic acts of scattering of a charged
pionp were found. The acts of scattering of pion@ were Identified by the de-
termination of Crain density along the trace. For the 325 nonelastic acts of
scattering the energy- and angular distribution of the scattered ne6ative pions

Dokl.kkad.Sauk 111, fase-4,795-798 (1956) CARD 2 / 2 PA - 1935
were determined. for the further Interpretation of tLe experlatntal caterial
obtained a graph shows the *norjey spectrum of the plons scattered In the angu-
lar range from 0 - 90 to 1800; this :p;otrum has the average energy of
64 ! 3 11aV and the half width (30,9 _ ) 99T.
Cc utation of the interaction between negat ve 160 MeV pions and the nuclei
of the Photo#mulsion was carried out on the assumption that meson-nuoleon
collisions In the nucleus develop In a way similar to that of the free nucleons.
The results obtained on the baste of the scattering of pions by the nucleons
of the nucleus by the computation of the energy- and angular distributions of
meson-nucleon collisions within the nucleus do not depend on the particular
features of the cross section of the Interaction between a pion and the nucleons
of the nucleus. Therefore the potential of interaction between the pion and the
nucleus can be evaluated with sufficient accuracy on the basis of the results
obtained by the aforementioned nonelastic scattering tests. The conditions
upon which such an evaluation Is based are enumerated. For the average Inter-
action potential of negative 160 MeV-pions the value V - Eexp - E theor -
- (24 + 6) MeT was found. This value agrees with the average potentials of
;he Inteiaction between plons and nuclei which were obtained by experiments
concerning the elastic scattering of pions by nuolei.
INSTITUTION:

NIMOLISKIY, B. A. Cand Phys-Math Sci _- (disa) "Jilre Non.-Elastic
Fi
Scattering of X-Mesona on.Nuclei." Moe, 195T. 11 pp 20 cm.
(Academy of Sciencea USSR), 100 copies (KLj 2T-57't 104)
enzj:~ Y %
) I
- T -
I

&UIHOR: Barkov, L. M.j aad ANIAL k" oW Ias, k1h, Ji 120-2-11/37
TITLE: Graphical Method of Determining the Energy and Angles of
Dispersion of Two uoving Relativistic 1hrticles.
(Grafichaskiy Sposob Opredeleniya Energil i Uglov pri
Rasseyanii dvukh Dvizhushchikhaya Relyativistskikh
Chastits.)
IfSRIODICAL: Pribory i Tekhnika Sksperimenta, 1957, No.2,
pp. 40 - 43 (USSR).
ABSTRAUT: The interaction between high energy nucleons or Vwsons
with nuclei may be regarded as a result of their inter-
action with sepainte nucleons in the nucleus (Ref. 1)o
The relevant computations are usually carried out using
the Monte Carlo method. In the present article a graphical
method is given for a rapid determination of the enerCj
and of the scattering angles of two moving particles for
the case when the characteristics of their interaction
are known in the centre of the mass system. The velocity
in the cenLre of mass system of two collidin6 parLicius
is aeztriainua iroia oiluatioa 1. The magnitude of the
resulting momentum arA its angle with direction of Liotion
of the incident particle are deter-ained graphicallv using
Card 1/3 the instrument shown schematically in figure 1. it

12-72-11/57
Gmphicetl method of oetermin'nS the Energy and Angles of Dispersion
of Two Movin6 Relativistic Particles.
consists of a rule OA used as an indicator for a protractor.
The momentum of the nuclear nucleon is produced along the
rule,, while the angle a corresponds to the angle between
the direction of motion of this nucleon. and the inci,,'L--nt
particle. BG is parallel to 001 and its length represents
the momentum of the incident nucleon. The rule OA is then
moved so as to coincide with point C (position OAI) and
the total momentum and the angle7( are thus found. After
determining this angle the parallel and the parpendicula.-
components of the momentum of the impinging particle are
found using a set-square in the nanner shown in Figure 2.
The complete vector dia9mm of the transformation is shown
in Fi6pre 5. The method of determining the ener&7 and the
scattering an6lo of particles in the laboratory system of
co-ordinates is given next; schematic illustrations are
shown in Figures 6 and 7. The procedure of findinj~ the
maSnitude and direction of the momentum of the scattered
particle is again discusrAd in detail, the magnitude of
the nomeatum of the scattered particle is eventually
determined by the distance OKI Agure 8. The above instru-
ment; has been used to evaluate the interaction of 1601!eV
Card 213 Yr-mesons with nuclei of photo-emulsions assuming the

AdT11GR t XIK0L$SKIJqB.A.v KUDRII,L.P.o ALI-UDZ,S.A. FA - 2058
-'IMM: 12*14016 sGattorine of 160 NOT C-Nefous on rhatocrapkic
Smalsion Sualei. (K*uprugas rass*jaalo 160 NOT C-sexasov as
jadimok fetoweloil" Russian).
PMODICAI: Zhurnal Zkoperimentaltsol I Toorot.lislklp 1957, Vol 529
Ir 1. pp 48-58 (U.S.S.R.)
Resolved: 3 / 1957 RovIewed: 4 / 1957
AUTRACTs TkIm work compares tke 4emputatlea of the Laelastis seattering
of negative plans of 160 NOT by the nuclei of pkMagraphle
walsloa with the experiment. Cosipxtatloa of the LatorsatLea
betweea fast piano and tko nucleus, Contra" to analogous gas-
putatIone of the lateractlea of fast sualsoas, Offer* tke ad-
vantage that In this case the nualosa pact of the Inner
amelear cam4ade kas act to to taken late account.
lo"t&l ropyltes The authors used a tundle of negative
en 5 NOT)-pisam emitted by the Ck4abor of the sys4kra-
M
eyolotres of the IJAP AN 26SR (- Institute for Nual4ar Prob-
Iwo of the Acedeny of sciences of the USSR) and SIM
we tolas* of the type F. The *zp*rtaental results obtained
rofer to a proton *norgy of ZZ a 162 NOT of tko plans. A total
Card of 1165 cases of Interaction between plans of this energy sad

PL - 2056
raolaotlo scattering of 160 NOT a -Kesons an Fkatograpkis
IhMIGIOR Xuolol.
assumptions or* discussed In dotall. Furthermore, the follow-
lag facts are layeattgalet more accurately: The r&Me of a
pies in the malese, tke salculatlem of tko, soattering of
plea* 'by the nucleons of a ameloseq the effects connected with
US modification of the potential on the 0644slon of the
passage of a plea tiLrough the boundary of a mucloveg the ab-
sorption of tke pica* in th* nucleus.
J19 good o"oessat of tko theoretical with the experlsontal
energy spectr of the pious scattered 'by the auclol of the
photographic eaulsion prove@ that the here assumed model
deserltem, the Interaction between the plans and the nucleus
satisfactorily.
ASSNUTION: not given
PIXABNM By:
go TMS
ATAIZAMs Ubc"*y of Congress
Card 3/1

AUTROR BARKOV L.H.t NIKOLISKIT B.A.
TITM Kous. (8urY#776f-TOrF#rtWWntZl Data)
-Russian)
(x-nssony Obsor ekeporizentalOnykh danAykh,
P&RIODICA.L Uspekhi Fiz. Nsuk 1957, Vol 610 Ir 3, PP 341-398 (USSR)
Received: 5/1957 Reviewed: 6/1957
OSTRACT The prevent survey systematizes the most, important,
experimental. data on the properties of pions and their
interaction with nuel*ons and nuclei.
The first part deals with the iateraotion'of pious with
nucleons and Is divided into the following sectioust
the properties of pion*, the scattering of pious by,
nuoltone (phase analysis of this scattering# dependence
of the total cross section of this scattering on energy),,,
the creation of pion& on the occasion of nualeon-nucleon-
collisions, the creation of pious under the influence
exercised by 7, -quantv..
Dummiu of first part: The energy dependence. of the
cross stations of photoproduotion and. the s"ttering: of'
pion* by nucleons have many features in common. The
cross sections of both processes attaintheir maxisua
W 110 - 120 XeV of the pion# in the
at the energy E
,
CAXV 1/3

Fiona* (Survey of experimental Data)
PL - ZG96
masons with different charges the effeats connected with
th* action, at the COULM field of the nuclei, the
aschanive of tho pro4ustion of.51oas an nuclei.
(39 Illustrations and 25 Table
ASSOCUTIM.- not gtv**.
M I D
MMUTUD:
AVAILABLN: 1;brazy of Congress.
CAU 3/3

"A *tAWY of AvlAsion Showers Caused. by MC)~-Eftergy Cosmic tay
Particles," by V. V. Alpers, 1. 1. G-arevich, V. 11.1. Kutu~-.ovm, A.
P. V16A=va, B. A. ffikol'okiy, and -1. V. Gurkovar Doklady,
denli, Hau14 SWR, Vol U2, No It Jan 57, YP 33-36
ReauLto are C;Lvcn of' ct study oC exploaLon Oioverft caused by high-
energy cosmic ray particlem. An cmLlsion ch=b-,r, cont&inin& "MM Type
P" t=Lsion, vas exposed for 7 hours in II.V 1955 e. an altitude of 2'1
kilometers.
The 29 erploston shovers observed are analyzad. The primary pmrti-
cle causing each shover, the number of rclatiActic particle6 per shaver,
and t4e anaular distributiou of shovi2r p&rtLclea relativer to the shovor
a;(Is are dete-ratined. M

XF 4
r
OLOWICH, KISHAMA. A.r.-. RIKOWSKIT'. B.A.; GMXGVA, LT.
Explosion showers produced by high ontrgr cosmic ray particles. Zhur.
*kup. I teor. fis. 34 no.2t265-280 7 159. (KMA 11:4)
1. Abodemlys mauk ISU.
(desule rare)

Ah <
AUTHORS: Guravicb, Z. I., kuturovao V. M., -"Ishakora, 56-2-2/51
A. P. , Mal B. A. , Surkova, L. v
TITLX: The Asy=etry in the An,;ular Distribution of p+
Decay Electrona,0beerved In Photographic Emulsions
(Aaimostriya uglovoeo ra3predelenlya elektronov p+ -1 e* -
-raopada po nablyudenlyan v fotoemullali)
PERIODICAL: Zhurnal Eksperimentallnoy I Teoreticheakoy FIzikI, 1950,
Vol 34, 11r 2, pp 21,10-205 (USSR)
ABSTRACT: An sQulsion chamber of 7 x 4 x I cm conciatinG of 23
layers of an ffkiK,0% photo,xaphic emulsion fron th~- F type
wan irradiated with slow positive pione of the G#iQ-1
(Ob"Yedinennyy inatitut yaderrykh lssledovani7 - United
Institute for Nuclear Research) synchrocyclotron. The chamber
was mounted In r. double maZ;netic screen I-. order to make
sure that the scattered magnetic field of the synchrotron
did not lead to a precession of the spin of the nyon. In
looking throuGh the emulsions after developing those cases
were selected where the whole nyon track of the x -.9p-decay
Card 1/3 Is situated in a single layer of the emulsion. In this the

The Asymmetry in the An~ular Distribution of p+ -0 e+ Decay 56-2-2/51
Slootrons Observed in PhotoCraphic F-iulsiono
myon to supposed to come to a standstill after the passaGe
through at least 50P of tho surface of the non-developed
layer of emulsion. The authora deterzined the angle a
between the direction of e2lasion of the myon it. the x -91A-
-decay and that of the electron of the p --% e-decay by
deter-itnina the anale a between these directions on the
emulsion level and the anCle of sitribution 01, P2 reap. of
the traces of the nyon, the electron towards the level of
emulsion resp.. Furthermore an emulsion chamber of the saLe
dimensions was irradiated with slow positive plona. The
results of meacurenents cre collected in a table. The ancular
distributions determined this way are shown by a diaGrami
they do not contradict the thooreticol dependence I + a cosep
a - (X/3)(1 - 1), where y denotes the depolarication
coefficient of ayona. A relation fer the determination of the
optimum value of a in given. The na--netic field (11 ~1100 0)
Increases a little the acyraiotry, i.e. it decreasea tLe
depolarization of the --jona in the enulcion. "-ut thin effect
in not regarded as strictly proved. 7he =ean valus of the
parameter a calculuted fro-i the reaulto of thin work Ir
Card 2/3 a a -(0,103 t 0,0094). The an"-ular distribution for 13771i&

The Asyametry In the An6gular Distribution of p e Afecag 56-2-2/51
glectrons Observed in Photographic Eaulcions
ASSOCIATION:
SUBUITM:
AVAILADLE:
-9 decajr processes proceeding from the results of various
previous works and from those of the present Investigation
In also shown In a diagram. Within the error limits the
anaular distribution of the elootrons or the relation I +
+ a co~4,is aufficioutg where a - -0011 + 0,015)- There
are 2 f1gures, 2 tables, and 13 references; I of which Is
Slavic.
Ag USSR (Akadealya nauk SSSR)
August 14, 1957
Library of Con&-rose
1, ftotopaphic eaulatons-Irradiation 2. Xlect4a, -Distribution
Card 3/3

t -
j A-1 4Y
U 2-55/51
AUTHORSe Dobrotsov, ru. P. , Nikolfekiy, B. A.
- -- -1 . . .............................,
TITLEs The FemokUm If Positive Pions by ffertive Plona
(Rozhdenlye x -nozonov e-mazonlat
PERIODICALs Zhurnal Zkoporimentallnoy I Tooraticheskoy Fitiki, 1950,
Tol, 34, Ur 2# PP 510 - 511 (USSR)
ABSTRACTo The prenent work investigated the production of positive pions
on the nuclei of a photo-amulsion, under the action of neea-
tive pions of an energy of frou 340 + 30 I:ev. The emulsion
chamber consisting of 60 emulsion layers of a total thick-
noes of 23 am and of a diameter of 100 mm was arranged in a
bean of negative 370 190Y plons of the synchrocyclotron of
the OMAM (- United Institute for Nuclear Research, Ob"
yedinannyy institut yadernykh Issledovanly). The chamber
consisted of an HO K~ff -amul2lon ~f th~ P type. On obaorv-
ing the emulsion layers the -roe decays were re-
corded. Teen the found positive pions were traced to the
place of their production. When tracing their Path 56 stars
Card 113 caused by negative pion@ were founde In the case of 21 stars

56-2-35/51
Ahe PWW Ion of Pesitive Plons by Negative Pions
the emission of a positive pion to accompanied by the enisuion
of a second plont which Is IdentIfted from the gradient of
granulaor density along Its path. Such cases obviously belon,;
tq1the production of positive plons, In the remalnin6 number
of the cases no emission of secand pion was noticed but these
cases can also be related to the production of a positive
pion with submaquent absorption of a negative pion In the
nucleus (or with emission of a neutral pion)# The enerCy of
the such produced positive pions was determined from their
range within the emulsion. The enera of the negative pions
(in the stars with 2 pions) was dote--mined from the density
of the grain* ,J,'he taking into account ol" the edge effect is
shortly discussed. Two diagrams show the energy spectrum and
the angular spectrum of the produced positive pions. The
spectra of the positive pions with aniwithout enisBion of a
second pion from the nucleus are similar to eac1h other. In
determining the relative moment& of two pions emitted from
the same star no noticeable correlation of the two plona of
the final atmte was found. This is# however, only a qua'Atta-
Card 2/3 tive final conclusions The cro~3 section of the production

The F011MIM of roAtive Plona by :(oCative Plons
56-2-35/51
of slow poottive plons (Ee - 0 to 60 UeT) b7 ne,-,attva pirmn
of an enero.1 of from 340 + 30 UeV on a nu$ua.jof t~c photo-
-enulsion ii equal to 0;~ (2,1 + 000) .10- c 2. TIncre ,r,~
2 f1jureat an~ 0 referoncoso 4 of which are Slavic.,
ASSOCIATIOlls MUSSR (Ahade-,Aya nruk 33311)
3 UIN.'I 7.-ED sOctober 29f 1957
AVAILADLEs Library or Conrreau
1. Pions-FormtIon-Positive 2. Pjan"sgative4ppUcations
3o Pions-ga*rgy spectnn 4,, Plow-AaCmUr sPectrum
Card 3/3

kM%A,R DISTRINUTIOU OF ~Amc=' III IUGH-WEMT EM=IVE sfacz is
A.P. KIONLkova, 04A. N Vdlxkiy, V.L Feddrov
Thit pappr coverx a stud~r or )7 blarst shomrs gentrated by ttigh-energy comic
particles 6&0'u ev) in nuclear emulsion. Th-.t main part of these explosive showers
hal already been Investigated by the authors in an earlier work.
The aiA of this paper is to consi,4r all, arrors (fluctuational ani caused by
meagurements) that influenced the angular distribution of show%r particles. This
was nacaaaat7 to verify, the, earlier conclusion that the angular distribution of
sbowlar particles in the cent m-or-ine rtia sy3tem, in son-!,ntric bac?varJfr (in the
lirection, of angles 130-1800)., This conclusion did not aj;rne with thT prudlations
of various theori,~s of shower production. The r4Lin effort in this study was to
deteimine tb-- orrors that are. possiblq In. deterninin& th-- true direction of the
show-r axis, The direction of th%-- primary partial(- may tx- tak---n as t~--~ direction or
th~- stjow,,3 r axis t if this is impossiblo, thon the Ji m-ction ot Ot~~ centm, of gravltY4
of tire showr is consilerel to be thm dimetion, of ttxt shower axis.,
k study has been male, (expirlimentally an,1 by t~.s For* Carlo, metho I) of the,
deviation of the dire-ction of th,,,~ llc,?ntm- of gravity' of the shower from that of
th-- primary particl-i It has been found teat the ro-lount of rluctutttion in Jetemin~ng
s~trw--r axis in 0.17~~ 1). which corresponds to an error or ZCP in IstomininE tha
direction of the shower axis in the cents r-o f-ine rtia system. An evaluation of
widening dw to this arrect shows that the nw-,ber of particles in the interval 00-3CP

in t~e center-or-inartia, systom kill ftmini3h, tr.- -' 22C TM- total systematic er.-or
in the experim-mtally observed nu:-,ber of' showar particles in th--! interval 00 -)00'
In the centar-or-inertial systa-m =ounts to-25~40
The angular distributions oC shower rarticles in thi cantre-of-inartial irystez-
have been obtained for 39 showers froot 0:0 to, 1800., The, distributiors indicate an
essential anisotropy of shower particleff movinC rather urLtrordT for%(ards ani backwa
with respect to the direction of motion of the primary particle,
Thus. account of this crror leala to a sym-)--trization of angular dtirtribution
in the cent re-of-Ine rtia systeem relative to the angle 0 r 'a /Z. This conciusion is
in agree*--at with the data of all otlar laborat4riax that were anal",ad in the
pap%r-
Report presented at the International CowAc Ray Conference. Koscow. 6-U. July 19W

24(3)0 21(7) SOT/56- 56-4-6VTO
AUTHO113s Ali-Zade, S. A., Gurevich, 1. 1., Dobretsov, Yu. P.,
Rikollskiy, B. A., Surkova, L. 1.
TITLE: The Asymmetry of Electron Angular Diotribution inAt+- e 4-Decay
in a kat-,neti~ Field of 27000 G (Asicactriya uglovo-go raapredeler,:~w
+
elektronov si - e
-raspada v magnitnom pole 27000 G)
PERILIDICAL: Zhurnal eksperimentallnol I teoreticheakoy fiziki, 19jq, Vol 36,
Nr 4, pp 1327-1329 (U.;,;R)
ABSTPUCTs If anCular distribution is described by the exprenoion
F1 '),_ - U
. -coo(V,A) char-
47-&N/do - 1-a cosO (a ->,P/3 w &
O
O
acterizes the ratio of the vectorial and poeudovectorial share
of interaction in 41 - e-docay; P denotes muon polariration) , it
in found that the quantity a depends both on tho ncRGuring neth-
ad and on the nature of the depolarized. matter. It attains 4
maximum value of a a 1/3 at cos(A,V) - -1. For NIKFI-R emulsions
a was determined as amounting to 0.092 t 0..018, for Ilford G-5
it was 0.14, The icaximwi value attained by a for Craphite Is
0-303 � 0.040. The depoInrizing property of matter may be reduced
by applying~- strong magnetic fields, the direction of which co-
Card 1/5 incides with muon polarization. The Increase of n brought about

+ JOY/56-36-4-65/To
The Asymmetry of Electron Angular Distribution In ~M - 0 Decay to a Nagnotic
Ifteld of 21000 0
by magnetic field can be described by a a a 1 0.5
of 1+(WvaE) 2
a0 donotee the &-value If no dopolarization takes place, AE the
energy of fine-structurs, splitting of th*~A-msslc &ton In the
IS-stats. An oxporisental checking of this formula in fields of
UP to 14000 G showed that by it the dependence a(H) is quall-
tativ*ly described. The authors determined a In the 1jr-(A- e-
docay In photasmulsions at 5 w 2TOOO 0- a was determined from the
ratio a - 20 backward _x forwardW Kbackward+"forward)* Results'
For 9 a 0 - 50 &1 - 0.315 +_ 0.026
0 - 150 - 1800 a2 a 0-295 t 0.027.
Kean value formation averaged over the directions in which suons
fly off gives$ a 3 - 0.305 t 0-019- 'f oreal 0 &V coo@, one ob-
tains areal AVO-940 - 0.324 t 0-020- Herefrom It follows that
Card 213 OAP - 0.972 0.06, i.e. 1%I with an accuracy of up to a

+ JOT/56-36-4-65/70
The Asymmetry of Sloctron Angular Distribution In ~A -Decoy In a Kagnetic
Field of 27000 0
statistical error of 6% attains Its maximum value and P
This Indicates a considerable degree of inaccuracy of the for-
mula describing a(H). The authors finally thank B. S. Xeganov
and B. V. Sokolov for their help in Irradiating the photoeaul-
Sion*, D. K. Samoylovich for developing the saulsion. and fur-
ther also V. W. Kutukova, A. M. Alperef and G. V. Plesh1vtseva
for their assistance. There are 8 references, 2 of which are
Soviet.
SUMITTEDs February 1, 1959
Card 3/3

2t (7)
AuTion: Gurevichv 1. 1., Qko"I !!~y ~8- A~-- SOV/56-3T-1-56/64
durkovs, Le T.
TITLX: Three-Zlectron Decay of the O-Keson (Trokhol*ktrcnnyy raspal
P-nozons)
PUIODICAL: Zhurnal eke ps risen %zl;no i teoreticheakoy fitiki, 1959, Vol 3T9
Ir I j, pp 318 - 319 u 813
ANTUCT: The anthore of the present "L*ttor to tho 141tor"q whom Investi-
SatinC the asymmetry of the angular electron 41stribution of
%-+ p -4 e-docay, observed that in one case three relativistic
electron* depart from the stopping potnt of the p-seson (or.
figure). All three electrons have largo Inclination allles with
respect to the emulsion plane# and therefore exact mosettroment
of CraLn density w
I:jo!afo:#Iblef It was, however, near that for
rolativistic part * trey-I Ifer). The recorded part of tho,
electron path length: L *I w 455 p# L 02 - 562 p# L 03 . 455 It.
The nuon rangs, amounts to R. so 596 p in the case of an average
path length of the muou of the a-ott-4scay In a R-51Kri-esulatom
Card 1/3 of 602 p. The angles between the electrons: 012 , e.6 9 a15 a

ftroe-glectran Decal of the it-K*son aor/56-3T-l -58164
- to.6% 023 a W950# The cage observed cannot be LaUrprotcd
as a nuon decor in electron + lowith a transformation of the
quantum into electron + positron at the place of decay, becauce
in this case the direction of the departure of the particle
pairs would hays had to be opposite to the observed direction
of flight of the decay tlectronso The explanation* p +-+ e+ +
+ 0+ + 0- + p + 3; or p+-+ e+ + 9 + w + r with following trans-
formation of tho quantum Into a pair would be possible. The case
described her*'was observed In connection with the gvaluatLon
of about 509000 muon. d4cays. Thus# the uthroo-tlectron" decay
probability of the suon. may be estimated at 2.10-5.
It the results obtained by other authors are taken Into accountv
a probability or io-6 I* obtained. This order of mWitudo to
obtained also If a radiation process of second order is ansuat4t
emission of a virtual t-quantua accompanying the departure of
the electron with follovine transformation Into an *Iactron-po-
sitron pair# the pair onor" of which may be estimated as anount-
Card 2/3

Three-laoctrom Decay of the g-Kosom SOV/56-37-1-56/64
129 to 15 New* The authors finally thank 1. So Shapiro for Aim-
cuselosm. Thore, is I figure.
SUBMITTIM: April 17, 1959
card 3/3

24.6900,24.6200o
24.6600024.6510,
16.8ioo
AUTHORSt Mlahakova,,
TITLE: Angular
Showers
76974
sov/56-37-6-i4/55
A. P., Mikol'sklyp B. A.
W', aw..,
Distribution of Shower Particles in EKplosive
Produced by Ifigh-Energy cosmic Ray Particles
PERIODTCAL: Zhurnal eksperimental0noy I teoreticheskoy fiziki,
1959, Vol 37, Hr 60 PP 1594-1603 (USSR)
ABSTRACT: An Investigation was made of the angular distribution
of cosmic particlea in showers with an energy or
1010 - 1013 ev in the center mass system. The data
were obtained on the basis or an analysis of 39
cosmic showers recorded In 1956-1957 at the height or
23-27 km. The method of the analysis was described
in the first part of this study (cf. I. I. aurevich,
A. P. Mishakovat B. A, Mikollskiy, L. V, Surkova,
Zhur. eksp. I teoret. fiz..,340 265o 1958). The main
Card 1/5 features of the radiation are summ&rized In Table 1.

Angular Distribution
ift Exp4oaLve Showers
Cosmic Ray Particles
of Shower Particles 76 9 -14
Produced by High-Energy SOV/56-37-6-14/55

fV

1944 39.8 3. is. tots
2 10 2+3 ~,7 2'.5 2 32.4 :8.9 1.65.1010
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p 3+2 17 5 k, q.G~
1 MIS 11.9t 2.78-toct

to
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Is &1 1
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I I p Iz-r7 24 4.26 0, in 0.41 a." $93-1010
12 p 11-4-13 Is 4), *p7 98.0 74.0 86.0 1: 47. to"
3 p 5+3 .17 2.37 z%'o 15.4 20.3 8.2 .1011
14 p 9+7 t4 4.4 13.0 10.0 11.94 2.62-104,
Is a 1Z+3 42 R.45 6".-1 0.41, 6.38 Sj .044
16 p
f,
0
t to 4 03 14.2 13.1 t3.95 3.88. lot'
17 p 2
I i IS 7:44 't G' , 0 to 6.93 0,6 tow
to p 141 12 9.82 5:82 5:6S 5, v sm-up.
to it Z+L, 27 1.42 40).5 41's 41.05
20 p 10-1-6 35 0. CF7 9.5.1 9,45 0.49 1.9 -SoAs
,,i At R,, + Ol't -fw.440 We-Ilk &ad 4104, 'reacks is% 064wee.
Card r-fj

Angular'Distribution of Shower Particles 76974
in Explosive Showers Produced by High-Energy SOV/56-37-6-14/55
Cosmic Ray Particles
+
21 a +1 33 I'M 24.0 309 U.45 1.0 4069
a 7+.1 12 5.50 9.00 0:06 9 U 1,74-1011
21 P 1.1.1 20 2,((1 28.2 204 24:3 1, te - to's
24 P ~,& 4 9 0.3ts Iso t09:8 R-4.8 4, ts - to-
(14 j 1) t oV2 it) 0 lie 23.6 1, 13. toll
f io to -..62 *.0: 3 13:6 (6.9 5.7 toga
1 '.2 to ~,41 10.5 #.Z? 9.48 1.9 .1(01
84-26 87 1;...2 4.6 3.94 4,27 3.64-10KO
2q P W 6 M It,-, 4.9 4,77 4.93 4.&S-069
'01
P lo-f 1 29 5,V 97 to.(Yj 9.97 1,14. t0II
31 0 1+2 4.0 1.31 42:0 X.4 40,2 3,22. to,*
32 4+0 W L"90 t9,4 ts.85 11.62 6,2 Icdl
-3
74
37
13.0
4.37
4.25
5.32
5.6 .1010
34 15+7 74 6,93 a,Z4 7.75 8.0 1,27 WO
.11% 13+6 2$ 4.08 t2,2 9A t0.62 2.24 016
Gfj 17 Z,(M 16.4 28,2 28,3
1.6 -tots
37 X Fj+ a 31 4.74 tZ.0 toj ti.05 2,".t(00
38 a
S 2147
1 +2 40
7a a :0
5:55 6,95
10.3 S. %
10.24 tt,z
10.27 Z.5 .1041
2JA ICOJ
ir.-.vshe too M&OW4'.
Card 3/5

Angular Distribution of Shower Particles 76974
in Explosive Showers Produced by High-Energy SOV/56-3'r-6-14/55
Cosmic Ray Particles
The magnitude of the energy was obtained on the
assumption of the syr-unetry In the angular distribution
of cosmic particles relative angle Ir/2 according to
the relations:
C 19
The direction of the particle motion In tte laboratory
system ~'was found to be related with thic. direction of
motion in the center of inertia system 0 by the
following relation:
ctg t);- 7, (3)
(where fJ Is the velocit of the particle in 'he
center of Inertia systemi. ~The analysis 3f th~e data
showed that a collision of the primary particle and
nucleus leads to a synuretrical angular distribution
of the cosmic particles in the center mass system,
and that there is no correlation between the angles
of the particle pairs in thi shower. 1. 1. GurevIc!h1o
Card 4/~ L. M, Barkov, V. 0. Vaks, 0. V. Ryzhova, and

AngulaIr Disitribution of Shower Particles 76974
in Explosive Showers Produced by High-Energy sov/56-37-6-14/55
Cosmic Ray Particles
V."B. Fedorova made various contributions In the
course of this work. The text contains 3 tatles;
4 graphs; and 2 Soviet references.
SULIPI.M&D: July 10, 1959
Card 5/5

63587
8/056/60/038/005/020/050
B006/B070
LIDT11013t likollskil,I D. A.t Ulahakov&, A.-P.
TITLSt Fluctuations in the Angular Distribution. of Seconlary
Particles of Explosive Showers 9
PERIODICALS Zhurnal eksperimentallnoy I toorotichoskol fiziki, 1960,
Vol. 38, go. 5, PP, 1507-1511
TEXTs Assuming the "two-center" model of the production of shower
particles in high-energy explosive showers, the authors have cilcula.ted.
the fluctuations of the angular distribution of shower particlos by the
Yonte-Carlo method. In the pronent work, the authors only give th*
results of those calculations and a comparison of the theoretical results
with tbe.abundant experimental. material. Fig. 1 st,ows charactorintic
oxszples of "two-center" angular distritutions of cosmic stower particles
observed in the laboratories of Chicago, Bristol, and Warsaw. Fig,, 2 shots
th& angular distribution of two particles each of those showers, whiah
correspond partly to narrow and partly to wide cones in the labora,tory
system. The distributions are givqn by the functioAs
Card 1/2

91056/61/040/002/009/041
DII)/324

j'~
ad*t 8. Ato. Curevicht L, 1.~# 11kollskiyf, lojw
Ali
AUTNORSt -Z
.
TITLII Asymastrr of' the angular distribution of eltotrons of'
~.o decor in, magnetic fields of'strong,the up to 35,000 as

URIODICALt Zhurnal oksperimentallnoy i toorstiahookor fisikil v. 40t,
not Zt 196t? 452-4,54

IM Taking into account the multiple *x*hazg* cf electrons in auoaiua
T
productiont the sechanisa of suca depolarise.tion haw hass. studied La
2' 2-
earlier paper& and the equation a &b.0.5/0+x +-T, )j (5) Obtaia*4i.
Norat a denotes the aunber of siahangsa with sl*atrons, t the mean life-
4t et

tiRO of #K RTA*ai= atom in the Units Aj(ht a 5'"56.10, a
Paq Thor*
P It the degree of residual polarization of the suoa on stopping La the
moderator, &at a Ist the asvam*trjr paranater., The present poper is coa-
L,7 cornod with the invostlgation-of the asymm#try of angular dLetributioa
Of
2
electrons ofx.t dscay in Salbstio fields up to 35#000 of* and with the
*rpianstlon of the function 0(8) in a wide range of at For oarrying out
Card 1/4

5/056/61104010021009104,7
keymactry of the angular..*
f
the exportuentt the phatosavasion chamber* were koakardot with slow
f. x+ secant a* that the Ruons war* atopped. in the chaulker. Froa tke events
'at' I-p-e decal such were sele4tedo in which the dirgation of emission of
the Suou formed angles of 0-361' and tGO-150 with the direction
A decal ware'oonsiler*d,
of the, ftgn*ti* fiaU. Only those events of
X so"aral
which the auou range was greater than or equal to t5
kron, the surface of tho eaultion. In allt a total of IM650 events of
x
feeftey were reacrial in accordance with those selection rules. The
ngl* ketwesiL the direction of onission of the, electron and the direction
a
of the magnetic fitli was pro4sct*d onto the surface of the sealsioa, and.
.LO:
the O"Jeatet anal* measure The T&IMO-Of the GOjf as deter-
r I ILK(a L
mine& frog the equatioat Lx(41 > 94' 1 -5(a