ENTRY G4081 20191217 G044G408100000001 SUBENT G4081001 20191217 G044G408100100001 BIB 11 34 G408100100002 TITLE Asymmetry in the cross sections for G408100100003 photodisintegration of a helium-4 nucleus by linearly G408100100004 polarized gamma rays G408100100005 AUTHOR (V.B.Ganenko, V.A.Getman, V.A.Gushchin, G408100100006 Yu.V.Zhebrovsky, A.A.Zayats, V.A.Zolenko, G408100100007 Yu.A.Kasatkin, L.Ya.Kolesnikov, S.I.Nagornyi, G408100100008 V.D.Ovchinnik, A.L.Rubashkin, P.V.Sorokin) G408100100009 INSTITUTE (4UKRKFT) G408100100010 REFERENCE (J,JEL,48,258,1988) English transl. of ZEP,48,238,1988 G408100100011 (J,ZEP,48,238,1988) in Russian G408100100012 #NSR: 1988GA29 G408100100013 FACILITY (LINAC,4UKRKFT) G408100100014 INC-SOURCE (BRST,POLPS) A linearly polarized quasimonochromatic G408100100015 gamma-ray beam was produced as a result of coherent G408100100016 bremsstrahlung of 1.2-GeV electrons in a 1-mm-thick G408100100017 diamond single crystal. G408100100018 DETECTOR (TELES,SCIN,MAGSP) The channel for the reaction G408100100019 g,4He->p,t under study was isolated by measuring the G408100100020 p,t coincidences. The protons and tritons emitted G408100100021 from the liquid-helium target were analyzed in terms G408100100022 of their momenta by two magnetic spectrometers and G408100100023 detected by the scintillation counter telescopes. G408100100024 The energy resolution of the experiment, which was G408100100025 determined by the angular and momentum capture of the G408100100026 magnetic spectrometers, varied in the experimental G408100100027 energy range from dEg/Eg = 0.08 to 0.14 MeV, with G408100100028 allowance for the energy loss of particles in the G408100100029 target and in the foil of the frame. G408100100030 METHOD (COINC) Detection of p and t in coincidence. G408100100031 SAMPLE The liquid-helium target with a 90-pm-thick G408100100032 stainless-steel neck had the shape of a cylinder 25 mm G408100100033 in diameter and 130 mm long along the beam axis. G408100100034 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties. G408100100035 HISTORY (20191217C) UkrNDC G408100100036 ENDBIB 34 0 G408100100037 NOCOMMON 0 0 G408100100038 ENDSUBENT 37 0 G408100199999 SUBENT G4081002 20191217 G044G408100200001 BIB 2 7 G408100200002 REACTION (2-HE-4(G,P)1-H-3,,POL/DA,,ASY/PP) G408100200003 Given by compiler as negative of author's value G408100200004 corresponding to difference between incident photons G408100200005 parallel and perpendicular to the reaction plane G408100200006 ANG-angles of emission of protons in c.m. G408100200007 STATUS (CURVE) Fig.1 from JETP Letters,48,258,1988 G408100200008 digitized by GSYS2.4.7. G408100200009 ENDBIB 7 0 G408100200010 NOCOMMON 0 0 G408100200011 DATA 4 13 G408100200012 EN ANG-CM DATA DATA-ERR G408100200013 MEV ADEG NO-DIM NO-DIM G408100200014 120. 62.5594 -0.7822 0.0492 G408100200015 120. 93.1569 -0.8403 0.0492 G408100200016 150. 61.4478 -0.8434 0.0585 G408100200017 150. 90.7729 -0.8418 0.0495 G408100200018 150. 121.2427 -0.6014 0.0720 G408100200019 150. 138.4015 -0.5104 0.0675 G408100200020 200. 61.8425 -0.5554 0.0497 G408100200021 200. 91.9626 -0.6114 0.0498 G408100200022 200. 120.8459 -0.4862 0.0634 G408100200023 200. 143.0567 -0.2793 0.0588 G408100200024 250. 89.8549 -0.3063 0.0495 G408100200025 250. 120.0582 -0.1892 0.0495 G408100200026 250. 140.4454 -0.0541 0.0586 G408100200027 ENDDATA 15 0 G408100200028 ENDSUBENT 27 0 G408100299999 ENDENTRY 2 0 G408199999999