ENTRY 23743 20210901 23022374300000001 SUBENT 23743001 20210901 23022374300100001 BIB 11 43 2374300100002 TITLE Isomer production ratio of the 112Cd(n,g) 113Cd 2374300100003 reaction in an s-process branching point 2374300100004 AUTHOR (T.Hayakawa,Y.Toh,A.Kimura,S.Nakamura,T.Shizuma, 2374300100005 N.Iwamoto, S.Chiba,T.Kajino) 2374300100006 INSTITUTE (2JPNIRS,2JPNOSA,2JPNJAE,2JPNTIT,3CPRBHN,2JPNTOK) 2374300100007 (2JPNJPN) National Astronomical Observatory of Japan, 2374300100008 Mitaka, Tokyo 2374300100009 REFERENCE (J,PR/C,103,045801,2021) 2374300100010 #doi:10.1103/PhysRevC.103.045801 2374300100011 FACILITY (SYNCY,2JPNJAE) ANNRI(BL04) beam line of MLF at J-PARC 2374300100012 INC-SOURCE (SPALL) Spallation reaction in a mercury target. 2374300100013 The proton beams with an energy of 3 GeV and an average2374300100014 power of 140 kW were injected into the mercury target 2374300100015 at a repetition rate of 25 Hz. 2374300100016 The proton beam was operated with a single bunch mode 2374300100017 with a width of 100 ns. 2374300100018 SAMPLE (48-CD-112,ENR=0.9827) 2374300100019 A Cd-112 enriched target was used but it included 2374300100020 Cd-113 with a fraction of 0.6%. 2374300100021 DETECTOR (HPGE,BGO) Array of Ge detector consists of two cluster2374300100022 Ge detectors and eight coaxial-Ge detectors with BGO 2374300100023 anti-coincidence shields. In the analysis, the two 2374300100024 cluster-Ge detectors were used. Individual cluster 2374300100025 detectors have seven HPGe crystals. 2374300100026 METHOD (TOF,GSPEC) Flight length = 21.5 m 2374300100027 ANALYSIS Prompt gamma-rays from Cd-112 resonances were 2374300100028 measured with gating on the resonances in the TOF. 2374300100029 The gamma-rays decaying to the ground state of 2374300100030 113Cd with energies of 299 keV and gamma-rays of 259 2374300100031 keV which decays to the isomer were clearly observed. 2374300100032 The gamma-ray intensity ratios of 259 keV to 2374300100033 the sum of 259 and 299 keV were deduced 2374300100034 at each resonance of Cd-112. 2374300100035 These ratios are expected to be approximately 2374300100036 proportional to the isomer production ratios. 2374300100037 The following expected ratios were calculated 2374300100038 using the CCONE Hauser-Feshbach statistical model. 2374300100039 From Jpi = 1/2+ states 0.18 2374300100040 Jpi = 1/2- states lower than 0.18 2374300100041 Jpi = 3/2- states 0.27 2374300100042 The spin and parity were assigned from the measured 2374300100043 isomer production ratios. 2374300100044 HISTORY (20210901C) Atsushi Kimura 2374300100045 ENDBIB 43 0 2374300100046 NOCOMMON 0 0 2374300100047 ENDSUBENT 46 0 2374300199999 SUBENT 23743002 20210901 23022374300200001 BIB 6 16 2374300200002 REACTION 1(48-CD-112(N,G)48-CD-113-M/G,,SIG/RAT,,RES) 2374300200003 2(48-CD-112(N,0),,J) 2374300200004 3(48-CD-112(N,0),,PTY) 2374300200005 ANALYSIS 1Ratios deduced from the intensity ratios of 259 keV to 2374300200006 the sum of 259 and 299 keV at each resonance. 2374300200007 REL-REF (R,,S.F.Mughabghab,B,NEUT.RES,,2-1,2006) 2374300200008 Resonance energy and orbital angular momentum of 2374300200009 incident neutrons were given. 2374300200010 FLAG (1.) L assignment (given in the REL-REF) is tentative. 2374300200011 (2.) SPIN and PARITY assignment(deduced in the 2374300200012 REFERENCE) and L (given in the REL-REF) assignment is 2374300200013 tentative. 2374300200014 (3.) SPIN and PARITY assignment(deduced in the 2374300200015 REFERENCE) is tentative. 2374300200016 ERR-ANALYS (DATA-ERR) No information on the source of uncertainty 2374300200017 STATUS (TABLE) Table I of Phys.Rev.C103(2021)045801 2374300200018 ENDBIB 16 0 2374300200019 NOCOMMON 0 0 2374300200020 DATA 7 21 2374300200021 EN-RES MOMENTUM L DATA 1DATA-ERR 1DATA 2DATA 32374300200022 FLAG 2374300200023 EV NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 2374300200024 NO-DIM 2374300200025 66.8 0. 0.199 0.008 0.5 +1.2374300200026 2374300200027 83.2 1. 0.17 0.04 0.5 -1.2374300200028 1. 2374300200029 226. 0. 0.230 0.017 0.5 +1.2374300200030 2374300200031 443. 0. 0.214 0.024 0.5 +1.2374300200032 2374300200033 453. 1. 0.27 0.07 2374300200034 1. 2374300200035 737. 0. 0.31 0.03 1.5 -1.2374300200036 2374300200037 909. 0. 0.16 0.04 0.5 +1.2374300200038 2374300200039 1115. 0. 0.23 0.05 0.5 +1.2374300200040 2374300200041 1207. 1. 0.36 0.10 1.5 -1.2374300200042 1. 2374300200043 1337. 1. 0.32 0.11 1.5 -1.2374300200044 1. 2374300200045 1423. 0. 0.21 0.06 0.5 +1.2374300200046 2374300200047 2036. 0. 0.28 0.11 2374300200048 2374300200049 2336.5 0. 0.41 0.13 1.5 -1.2374300200050 2374300200051 3104. 0. 0.23 0.09 2374300200052 1. 2374300200053 3321. 1. 0.37 0.10 1.5 -1.2374300200054 2374300200055 3493. 1. 0.43 0.19 1.5 -1.2374300200056 2. 2374300200057 4108. 1. 0.37 0.17 1.5 -1.2374300200058 3. 2374300200059 4558. 0. 0.25 0.12 2374300200060 2374300200061 6578. 0. 0.29 0.17 2374300200062 2374300200063 6975. 0. 0.14 0.13 2374300200064 2374300200065 8587. 0. 0.21 0.11 2374300200066 2374300200067 ENDDATA 46 0 2374300200068 ENDSUBENT 67 0 2374300299999 ENDENTRY 2 0 2374399999999