SCIENTIFIC ABSTRACT MINARIK, YE. V. - MINARIK, YE. Y.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001134330011-4
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 9
• Document Creation Date: January 3, 2017
• Document Release Date: July 31, 2000
• Sequence Number: 11
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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AS.~ZA-11:11# flatchoakt.1 1"titut It. IP. If. LoUo-dove Akad"ll nsuk SUR inhysics
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AM" 9, 9.1 oWww, S, r.1 tAb*UYA_Ae 1, WrArIk.199 V*
MU3 %ho tuaft -- ---5 1
00.0-t-m 11 - - a mmula Pima an protons
Mhvvy4d O"Ir.0 I tq*m%* rLaw, v. U& no# % 1963,, 1463-1469
TOM UM *&mtdvl piva x-hatapro6metion,, Uavob*2A reactims, pwtlAa vvives
AM&ACIt 1h0 ftWAIW M*Ulb"IM of SWAMI VIMG $9 ed an &--vtons by
Owt4fts Ot TOI PUT awra vas messwrid viah an &i& at ecorarivg directly the
"WU=A&I retvalts vtth U* oxwt 41"orston-relation calculatims, vhich
blQ*rte me mot wt1h two 4ifflevatWe. Aa increase in Uw experlamtel
wwavey wd a Utemiratim of morlasaW T4snt1t1*& Uat can be. calculated
vjth,ft% Uw go" for t"Ir4 the &isperel4a Inugals into account can help
se"ot far Vw rawlaU4 41opwity, the sutb4ts d0scrIbe an accurate
J0104"ems of the w4ubw 41sUrIbutlaw of the mutral-plon photoproduction on
;ratme ow iAr*sb*U, &rA air* an wwlysts of ths results rrm the point of
wj#w of getemiliattm of exporimaut with 41gersim-relation calculations. The
CW4 Ila

Lwd=3 AF3M35
~wwulj jdaw ve" r9gisterld " stmatansoualy counting the tvO Ucay photma
$7 setm1U11&tJd%-eOdA4kT tolescop"o the mt results vere a= accurate
wWpLU& UstribAlme for mutml-pica phoUproftetIcin near threshold, better
wtomp"t vith Uw om&*4Uww1onm1 d1spenton-valation calculatlong, and
6etoetlcm of saw Usparity betvm tM enertmenUa date, and the d1sMsim-
t*latlm ealenl"Iaw If no mccowt to takAn of the ruamant, meson, statess Vils
Mov Indletto UAt OA mmeme &#&m stata* makA scm contributlon, to the
In-ovot I gates pteaw, ""w suUm" tkAnk Z. AL Cherenkov for interest in this
wwik, W&W for viduable advlce,, EggIpM for help in the vork with
%0 e0vaiar, Ift"yy for numarle" satimatoop &. 0& (tersa in for help
Am --*MLeg mt Uw s%VorUiouts, and the %balm symbx0trom crev of thO r.1,741rs
.T;ftw% I tvt* of %&* Ag m S m q at 9a Ime#s. 0 Vsre am five tLpme and Uuve tables
peocwtml plateb"kii ImUtut is. 1P. 1. Labodeva, Akadmll nsak 930
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TTTU t*t*r*UaU*n of mmleor USSMIAOrm 41 fferentlal cross sections for
toitral pton ;boUnroduation
SCU*V3% UmTrAl *UW* I loor, fltikt,, v. kh* no. 6., 1963,, 17W-17%
'MC TtMi mwlew dimm"am, mutral pion piortooproftetIon, angular distribu-
seetion, woutwe
ABOMMI "a remats at m"Wol p1ca photapmftatlou am presented for a man
jwtMm" Iftrtm Smara of 182 MO. "w" data, slong vIth the angular distribu-
tton* of motmi pims oltalwd In earlier wqporiments for 154 XeV energy, are
w*1y%*4 In order to o%-t*ft some parmeters of the criclem distribution in Be, C,
Al, C+A, 01, AN, and 1% nuclei. The exyerlmntal-apperatus " the setup of the
vIU W dieserited elsevitere In press). The results agree
satisfooMwily vtth UA m1form model In the cams of Cu, Cd, and Ta, vhich in
IZA e"* of *Jwse ntals eolnotdo vith the results of the trapezoidal model.
Mi values, obtAlmd for tbe amplitudes can also be reconciled vith the calcula-

L
Uans. "In fteelitston Um authors tbank P. A. Cherenkov wA A. X. &adin for
Interest In their vark, 3, 1, ftkolov 4 E. X. 35tarkov for he-1`pf-U---cc-n-sMta-
tions on the awlysts of Uw "rl=nW data by the least-squares method, r.~nl
&!so the ayelotrw tm of the Physics Institute. We vould also like to thr--.?.
101. 1. Kato"**, Pe as fiqj2jg!A_*qd tho staff of the computing department of the
r-y-s"Tes Ins-Ututo for belp v1th the calculations on the electronic cov7uters."
OrIg. an, has: 11 ftgarsso 3 formlas, and 2 tables.
MWCUTIM flalabeekly institut in, P. W. tAbodeva Akademil nauk SSSR
Q~nles Lwtltulop Academy *f 8alweess $30)
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k 1 01 &.1 DIP"isoy S. P-1 Leb"Ovt A. 141 Kinarik,
-161
k
V.
,W-4!C t pbptMroduition, neutral pion, 9*aaa proton interaction,
-4 ~ " ti M COOLO". Phatoproduction cross section
kla-M"t tft View of its, significaAcst to & cowleto ph.&Oe shift
1-11riwit OrA tho War"AtIon it can yield on the applicability of
if I Irr#'t # i IM CS06 ry, the PrOC*s I V 4 P -.0 P + Ito was investigated and
ctoss se,ction was ooasur*d for 6 m"on emission
*I plhetor% onarqy 210 1 14 M*V in the laboratory system. 7he
smoo tilstle" wet* carri" out in tho bramstrahlung boam of the
e .# 1'/$

Mj AP4041004
PTA$- ;A5~-q*V wrvvc~hrotron. Tho. n4rutral pion* were observed by
~ili ~vwj. j n
, 4 tho tvo doc&y -f quanta in coincidence., The apparatus used
vim's 40sctit4d by th# authors previously (Zhff? v. 44, 1463, 1963,;
oiwt~opt that a liquid hydroqan target was used in an ordinary glass
~sith wall thickness I on. The hydrogen capacity of the Dewar
w4# 4 'AlItots, so U~at co"tlnuou-% Peasurments could be made for 12
"* diff*r#atial cross soctions for the production of no
mio#Dfts frm protons "-r# calculated from the measured yield by the
'01"NV4 A**"Lt4KV b-f G--V---rkCr-w at al. (ZhLwrF v. 44, 878, 1963) . COM-
PariscmN of th# r**,wlts with those by others showed good agreement.
-parinq th4o data with the cross sections calculated on the
bzir-vis of the, dis,"rsion relation It is concluded that the data pre-
41onted can be doscrib#,d within the framework of the bipion model
introduction of a subtraction constant in the -y + n -* n + Tr
vlhannel. "n; * authors are grateful to A. K. Baldin --- for help-
1141 distvjistans and A. S. Uvarov for assistance-with the numerical
4!4tIvt-*t&tIms.* Oriq. art. hast I figure.

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k1~1we,scIATICat fislfbaskly institut im6 P,. N. Labodeve, Akademii nauk
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