ENTRY 32857 20230208 3285700000001 SUBENT 32857001 20230208 20231011 3285700100001 BIB 13 54 3285700100002 TITLE The 59Fe(n,g) 60Fe cross section from the surrogate 3285700100003 ratio method and its effect on the 60Fe nucleosynthesis3285700100004 AUTHOR (S.Q.Yan, X.Y.Li, K.Nishio, M.Lugaro, Z.H.Li, H.Makii, 3285700100005 M.Pignatari, Y.B.Wang, R.Orlandi, K.Hirose, K.Tsukada, 3285700100006 P.Mohr, G.S.Li, J.G.Wang, B.S.Gao, Y.L.Han, B.Guo, 3285700100007 Y.J.Li, Y.P.Shen, T.K.Sato, Y.Ito, F.Suzaki, J.Su, 3285700100008 Y.Y.Yang, J.S.Wang, J.B.Ma, P.Ma, Z.Bai, S.W.Xu, 3285700100009 J.Ren, Q.W.Fan, S.Zeng, Z.Y.Han, W.Nan, W.K.Nan, 3285700100010 C.Chen, G.Lian, Q.Hu, F.F.Duan, S.Y.Jin, X.D.Tang, 3285700100011 W.P.Liu) 3285700100012 INSTITUTE (3CPRAEP,2JPNJAE,3HUNELU,3AULMOU,3HUNDEB,3CPRIMP, 3285700100013 3CPRUCA,3CPRLNZ,3CPRBNU,1USAMSU) 3285700100014 (3HUNHUN) Eotvos Lorand Research Network,Budapest 3285700100015 (2UK UK) University of Hull 3285700100016 REFERENCE (J,AJ,919,84,2021) 3285700100017 #doi:10.3847/1538-4357/ac12ce 3285700100018 FACILITY (VDGT,2JPNJAE) 3285700100019 INC-SOURCE An 18O beam with an energy of 103.0 MeV. The average 3285700100020 intensity of the 18O beam was about 0.2 pnA, and the 3285700100021 diameter of the beam spot was less than 3 mm. 3285700100022 A Faraday cup was installed about 1.3 m away from the 3285700100023 target to collect the 18O beam dose. 3285700100024 SAMPLE (26-FE-56,ENR=0.994) The thickness of target is 3285700100025 402 ug/cm2. 3285700100026 (26-FE-58,ENR=0.963) The thickness of target is 3285700100027 260 ug/cm2. 3285700100028 DETECTOR (SI) An array of dE-E silicon detector telescopes 3285700100029 was located downstream of the target to identify the 3285700100030 light ejectile particles. 3285700100031 (HPGE) Four HPGe detectors were placed perpendicular 3285700100032 to the beam direction at a distance of about 70 mm 3285700100033 from the target for gamma-ray detection. The absolute 3285700100034 peak efficiency of each HPGe detector was about 0.6% 3285700100035 at 1173.2 keV. 3285700100036 PART-DET (8-O-16,G) 3285700100037 METHOD (EDE) Each Fe target was irradiated for approximately 3285700100038 2.5 days, and the accumulated number of 16O was 3285700100039 approximately 1.7E5 and 1.3E5 for the 56Fe and 58Fe 3285700100040 targets, respectively. The number of detected 3285700100041 gamma-ray events from 58Fe and 60Fe was about 4.5E3 3285700100042 and 3.4E3, respectively. 3285700100043 ANALYSIS (SURGT) Surrogate technique: The 58Fe(18O,16O) 60Fe 3285700100044 and 56Fe(18O,16O) 58Fe reactions represent 3285700100045 59Fe(n,g)60Fe and 57Fe(n,g)58Fe, respectively. 3285700100046 The gamma intensities 86.0+-2.0% (824 keV) and 3285700100047 66.0+-3.0% (811 keV) were adopted for identification 3285700100048 of 60Fe and 58Fe, respectively. 3285700100049 According to Eq.3 of S.Q.Yan+,J,PR/C,94,015804,2016 3285700100050 (EXFOR 32732),the authors assume the compound 3285700100051 formation cross section is the same for 59Fe+n and 3285700100052 57Fe+n. 3285700100053 ERR-ANALYS (DATA-ERR) No information on uncertainties 3285700100054 HISTORY (20230208R) The data received from S.Q.Yan 3285700100055 (20230208C) Jimin Wang (CNDC) 3285700100056 ENDBIB 54 0 3285700100057 NOCOMMON 0 0 3285700100058 ENDSUBENT 57 0 3285700199999 SUBENT 32857002 20230208 20231011 3285700200001 BIB 2 4 3285700200002 REACTION ((26-FE-59(N,G)26-FE-60,,SIG,,,DERIV)/ 3285700200003 (26-FE-57(N,G)26-FE-58,,SIG,,,DERIV)) 3285700200004 STATUS (TABLE) Fig.2 of Astrophysical J.,919,84,2021. 3285700200005 Data were provided by author. 3285700200006 ENDBIB 4 0 3285700200007 COMMON 1 3 3285700200008 EN-ERR 3285700200009 MEV 3285700200010 0.25 3285700200011 ENDCOMMON 3 0 3285700200012 DATA 3 16 3285700200013 EN DATA DATA-ERR 3285700200014 MEV NO-DIM NO-DIM 3285700200015 0.25 1.19 0.10 3285700200016 0.75 1.45 0.16 3285700200017 1.25 1.00 0.14 3285700200018 1.75 0.94 0.16 3285700200019 2.25 1.23 0.23 3285700200020 2.75 0.90 0.19 3285700200021 3.25 0.90 0.21 3285700200022 3.75 0.96 0.19 3285700200023 4.25 0.81 0.18 3285700200024 4.75 1.00 0.23 3285700200025 5.25 0.69 0.16 3285700200026 5.75 0.84 0.18 3285700200027 6.25 0.70 0.15 3285700200028 6.75 0.88 0.22 3285700200029 7.25 0.89 0.30 3285700200030 7.75 0.77 0.23 3285700200031 ENDDATA 18 0 3285700200032 ENDSUBENT 31 0 3285700299999 SUBENT 32857003 20230208 20231011 3285700300001 BIB 5 9 3285700300002 REACTION (26-FE-59(N,G)26-FE-60,,SIG,,,DERIV) 3285700300003 MONITOR (26-FE-57(N,G)26-FE-58,,SIG) 3285700300004 MONIT-REF (23734001,G.Giubrone+,J,NDS,119,117,2014) 3285700300005 ANALYSIS The cross sections were obtained by multiplying the 3285700300006 experimental gamma-decay probability ratio with the 3285700300007 directly measured 57Fe(n,g)58Fe cross section of 3285700300008 G.Giubrone et al. 3285700300009 STATUS (TABLE) Fig.3 of Astrophysical J.,919,84,2021. 3285700300010 Data were provided by author. 3285700300011 ENDBIB 9 0 3285700300012 COMMON 1 3 3285700300013 EN-ERR 3285700300014 MEV 3285700300015 0.01 3285700300016 ENDCOMMON 3 0 3285700300017 DATA 5 10 3285700300018 EN DATA DATA-ERR MONIT MONIT-ERR 3285700300019 MEV MB MB MB MB 3285700300020 0.01 104.7 9.4 85.1 2.7 3285700300021 0.03 31.0 5.7 29.0 4.7 3285700300022 0.05 19.3 3.6 15.1 2.5 3285700300023 0.07 10.5 3.0 7.7 2.1 3285700300024 0.09 9.3 2.5 6.5 1.6 3285700300025 0.11 16.5 5.1 11.3 3.4 3285700300026 0.13 11.2 8.1 7.5 5.4 3285700300027 0.15 7.5 4.6 4.1 2.5 3285700300028 0.17 9.1 4.9 3.8 2.0 3285700300029 0.19 9.2 5.6 3.7 2.2 3285700300030 ENDDATA 12 0 3285700300031 ENDSUBENT 30 0 3285700399999 ENDENTRY 3 0 3285799999999