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