ENTRY M0389 20161018 M085M038900000001 SUBENT M0389001 20161018 M085M038900100001 BIB 13 40 M038900100002 TITLE Ca-40 photoneutron cross section above the giant M038900100003 dipole resonance. M038900100004 AUTHOR (J.A.Eden,G.J.O'keefe,R.P.Rassool,D.J.Mclean, M038900100005 M.N.Thompson,T.Suda,I.Nomura,J.Yokokawa,O.Konno, M038900100006 T.Terasawa,Y.Torizuka) M038900100007 INSTITUTE (2JPNTOH,3AULAML) M038900100008 REFERENCE (J,PR/C,44,753,1991) M038900100009 INC-SOURCE (TAGD) M038900100010 FACILITY (LINAC,2JPNTOH) Tohoku University Linac. M038900100011 SAMPLE (20-CA-40,NAT=0.96941). Natural calcium cylindrical M038900100012 target, of diameter 72 mm, length 145 mm, and mass M038900100013 735 g, was enclosed in a sealed plastic bag filled M038900100014 with argon gas. M038900100015 METHOD (TOF) Neutron kinetic energies were determined by the M038900100016 time of flight between the calcium target and the M038900100017 neutron detectors. M038900100018 DETECTOR (SCIN) Organic liquid scintillator NE213. M038900100019 ANALYSIS The absolute numbers of photoneutrons with measured M038900100020 kinetic energy were used to obtain the M038900100021 double-differential reaction cross section. M038900100022 ERR-ANALYS (ERR-S) Statistical errors are given. M038900100023 (ERR-1) The systematic uncertainty was estimated to M038900100024 be equal to 6 %. M038900100025 COMMENT The Ca-40(g,n)Ca-39 reaction cross section has been M038900100026 measured with tagged photons with energies ranging M038900100027 from 31.2 to 102 MeV, for neutron emission angles of M038900100028 45, 60, 75, 90, and 135 deg. Exclusive differential M038900100029 cross sections for the Ca-40(g,n) and Ca-40(g,p) M038900100030 reactions are found to be of a similar magnitude, M038900100031 but are not well predicted by recent random-phase M038900100032 approximation and relativistic direct knock-out M038900100033 calculations. M038900100034 Exclusive differential cross section for the M038900100035 missing-energy region E-miss = -2.5 - 3.5 MeV were M038900100036 presented. M038900100037 HISTORY (19971015C) Data were compiled at the Russia MSU INP M038900100038 CDFE by V.V.Varlamov. M038900100039 (20161018A) Corrected by V.Varlamov: dates, SAMPLE, M038900100040 ERR-ANALYS, STATUS, COMMENT, COMMON, HISTORY, M038900100041 lowercase. M038900100042 ENDBIB 40 0 M038900100043 COMMON 1 3 M038900100044 ERR-1 M038900100045 PER-CENT M038900100046 6.0 M038900100047 ENDCOMMON 3 0 M038900100048 ENDSUBENT 47 0 M038900199999 SUBENT M0389002 20161018 M085M038900200001 BIB 3 4 M038900200002 REACTION (20-CA-40(G,N)20-CA-39,,DA) M038900200003 STATUS (TABLE) Data from Table 1. M038900200004 HISTORY (20161018A) Corrected by V.Varlamov: REACTION, M038900200005 COMMENT. M038900200006 ENDBIB 4 0 M038900200007 COMMON 2 3 M038900200008 EN-MIN EN-MAX M038900200009 MEV MEV M038900200010 33.7 47.6 M038900200011 ENDCOMMON 3 0 M038900200012 DATA 4 5 M038900200013 ANG DATA -ERR-S +ERR-S M038900200014 ADEG MU-B/SR MU-B/SR MU-B/SR M038900200015 45. 59.2 6.8 8.5 M038900200016 60. 44.8 5.3 6.5 M038900200017 75. 71.2 8.4 10.4 M038900200018 90. 44.4 5.2 6.1 M038900200019 135. 4.6 1.1 1.8 M038900200020 ENDDATA 7 0 M038900200021 ENDSUBENT 20 0 M038900299999 SUBENT M0389003 20161018 M085M038900300001 BIB 3 4 M038900300002 REACTION (20-CA-40(G,N)20-CA-39,,DA) M038900300003 STATUS (TABLE) Data from Table 1. M038900300004 HISTORY (20161018A) Corrected by V.Varlamov: REACTION, M038900300005 COMMENT. M038900300006 ENDBIB 4 0 M038900300007 COMMON 2 3 M038900300008 EN-MIN EN-MAX M038900300009 MEV MEV M038900300010 50.2 70.9 M038900300011 ENDCOMMON 3 0 M038900300012 DATA 4 5 M038900300013 ANG DATA -ERR-S +ERR-S M038900300014 ADEG MU-B/SR MU-B/SR MU-B/SR M038900300015 45. 13.1 2.9 4.8 M038900300016 60. 9.1 2.3 3.8 M038900300017 75. 7.6 2.5 4.7 M038900300018 90. 4.3 1.7 3.2 M038900300019 135. 0.54 0.49 1.55 M038900300020 ENDDATA 7 0 M038900300021 ENDSUBENT 20 0 M038900399999 ENDENTRY 3 0 M038999999999