ENTRY C3061 20250506 C306100000001 SUBENT C3061001 20250506 20251001 C306100100001 BIB 9 37 C306100100002 TITLE Spectroscopy of 13Be through isobaric analog states C306100100003 in 13B C306100100004 AUTHOR (C.Hunt,S.Ahn,J.Bishop,E.Koshchiy,E.Aboud,M.Alcorta, C306100100005 A.Bosh,K.Hahn,S.Han,C.E.Parker,E.C.Pollacco, C306100100006 B.T.Roeder,M.Roosa,S.Upadhyayula,A.S.Volya, C306100100007 G.V.Rogachev) C306100100008 REFERENCE (J,PR/C,108,L051606,2023) C306100100009 #doi:10.1103/PhysRevC.108.L051606 C306100100010 INSTITUTE (1USATAM,1CANTMF,3KORIBS,2FR SAC,1USAFSU) C306100100011 (3KORKOR) Ewha Womans University, Seoul 03760, RepublicC306100100012 of Korea C306100100013 FACILITY (LINAC,1CANTMF) The SC-linac and ISAC-II facility at C306100100014 TRIUMF. C306100100015 INC-SPECT 12Be ions were produced from a tantalum target and C306100100016 accelerated through the ion transport system to the C306100100017 SC-linac. The SC-linac accelerated the 12Be ions to 6 C306100100018 MeV/u. This energy allowed the measurement of the C306100100019 excitation function in the center-of-mass (c.m.) frame C306100100020 starting from 5.5 MeV down to about 1 MeV. C306100100021 DETECTOR (TPC,SI,CSICR) The Texas Active Target (TexAT) C306100100022 detector, TexAT uses a highly segmented micromesh C306100100023 gaseous structure (Micromegas) detector to record C306100100024 tracks of charged particles. For additional gas gain, C306100100025 a gas electron multiplier (GEM) is placed before the C306100100026 Micromegas mesh. Tracks of the beam particle and the C306100100027 heavy and light recoil particles are recorded by the C306100100028 TPC. As an active target TPC, TexAT uses the same gas C306100100029 as a target and an active medium of the detector. In C306100100030 TexAT, an array of silicon detectors are placed at C306100100031 the forward wall of the chamber backed by CsI crystal C306100100032 scintillators to measure the energy of the light C306100100033 recoil particles. The particle tracks in the detector C306100100034 are used to reconstruct the reaction kinematics in C306100100035 conjunction with the total energy measurements in the C306100100036 silicon and CsI detectors. C306100100037 SAMPLE The TexAT was filled with 260 Torr of isobutane gas. C306100100038 HISTORY (20250506C) BP C306100100039 ENDBIB 37 0 C306100100040 NOCOMMON 0 0 C306100100041 ENDSUBENT 40 0 C306100199999 SUBENT C3061002 20250506 20251001 C306100200001 BIB 4 5 C306100200002 REACTION ((1-H-1(4-BE-12,EL)1-H-1,,DA)= C306100200003 (4-BE-12(P,EL)4-BE-12,,DA)) C306100200004 METHOD The excitation function is for the central detector. C306100200005 ERR-ANALYS (DATA-ERR) Experimental uncertainties. C306100200006 STATUS (CURVE,,C.Hunt+,J,PR/C,108,L051606,2023) Fig. - 5a C306100200007 ENDBIB 5 0 C306100200008 COMMON 2 3 C306100200009 EN-CM-MIN EN-CM-MAX C306100200010 MEV MEV C306100200011 1.0 5.0 C306100200012 ENDCOMMON 3 0 C306100200013 DATA 3 28 C306100200014 ANG-CM DATA-CM DATA-ERR C306100200015 ADEG MB/SR MB/SR C306100200016 167.535 14.737 8.947 C306100200017 167.762 7.895 5.789 C306100200018 168.007 9.474 6.842 C306100200019 168.269 15.263 6.842 C306100200020 169.056 29.474 10.000 C306100200021 169.318 40.000 9.474 C306100200022 169.580 27.368 9.474 C306100200023 169.860 36.842 10.000 C306100200024 170.140 39.473 11.053 C306100200025 170.437 30.526 10.526 C306100200026 170.699 46.316 12.632 C306100200027 170.944 33.684 11.053 C306100200028 171.241 34.210 11.579 C306100200029 171.521 51.052 13.684 C306100200030 171.783 74.210 14.737 C306100200031 172.063 90.526 16.842 C306100200032 172.325 122.631 18.947 C306100200033 172.622 144.210 20.526 C306100200034 172.902 73.157 16.842 C306100200035 173.164 53.158 14.210 C306100200036 173.409 46.842 15.263 C306100200037 173.706 48.421 14.737 C306100200038 173.986 25.789 10.526 C306100200039 174.266 43.684 13.684 C306100200040 174.545 19.474 10.000 C306100200041 174.878 27.895 11.579 C306100200042 175.140 31.052 12.105 C306100200043 175.455 12.632 8.947 C306100200044 ENDDATA 30 0 C306100200045 ENDSUBENT 44 0 C306100299999 SUBENT C3061003 20250506 20251001 C306100300001 BIB 4 6 C306100300002 REACTION ((1-H-1(4-BE-12,EL)1-H-1,,DA)= C306100300003 (4-BE-12(P,EL)4-BE-12,,DA)) C306100300004 METHOD The excitation function measured by the exposed C306100300005 bottom half of the detector above the central detector.C306100300006 ERR-ANALYS (DATA-ERR) Experimental uncertainties. C306100300007 STATUS (CURVE,,C.Hunt+,J,PR/C,108,L051606,2023) Fig. - 5b C306100300008 ENDBIB 6 0 C306100300009 COMMON 2 3 C306100300010 EN-CM-MIN EN-CM-MAX C306100300011 MEV MEV C306100300012 1.0 5.0 C306100300013 ENDCOMMON 3 0 C306100300014 DATA 3 17 C306100300015 ANG-CM DATA-CM DATA-ERR C306100300016 ADEG MB/SR MB/SR C306100300017 148.393 9.255 4.720 C306100300018 149.263 14.021 5.758 C306100300019 150.336 20.895 6.813 C306100300020 151.347 50.844 10.479 C306100300021 152.424 49.851 9.968 C306100300022 153.510 32.076 7.875 C306100300023 154.594 18.496 4.190 C306100300024 155.665 29.567 8.386 C306100300025 156.800 15.990 5.764 C306100300026 157.910 53.286 11.006 C306100300027 158.876 69.071 13.625 C306100300028 159.981 115.284 20.973 C306100300029 161.016 95.932 18.354 C306100300030 162.111 59.800 14.682 C306100300031 163.253 33.111 9.968 C306100300032 164.275 41.032 12.068 C306100300033 165.306 29.023 9.965 C306100300034 ENDDATA 19 0 C306100300035 ENDSUBENT 34 0 C306100399999 SUBENT C3061004 20250506 20251001 C306100400001 BIB 4 7 C306100400002 REACTION ((1-H-1(4-BE-12,EL)1-H-1,,DA)= C306100400003 (4-BE-12(P,EL)4-BE-12,,DA)) C306100400004 METHOD The excitation functions measured in the inner C306100400005 columns of the four detectors next to the central C306100400006 detector. C306100400007 ERR-ANALYS (DATA-ERR) Experimental uncertainties. C306100400008 STATUS (CURVE,,C.Hunt+,J,PR/C,108,L051606,2023) Fig. - 5c C306100400009 ENDBIB 7 0 C306100400010 COMMON 2 3 C306100400011 EN-CM-MIN EN-CM-MAX C306100400012 MEV MEV C306100400013 1.0 5.0 C306100400014 ENDCOMMON 3 0 C306100400015 DATA 3 18 C306100400016 ANG-CM DATA-CM DATA-ERR C306100400017 ADEG MB/SR MB/SR C306100400018 145.331 14.778 3.755 C306100400019 146.633 16.886 3.750 C306100400020 147.883 39.353 5.896 C306100400021 149.128 46.819 5.356 C306100400022 150.312 46.788 6.967 C306100400023 151.487 22.113 4.820 C306100400024 152.793 33.864 5.896 C306100400025 154.037 38.652 6.422 C306100400026 155.226 56.299 10.182 C306100400027 156.368 109.840 11.790 C306100400028 157.611 110.878 13.396 C306100400029 158.916 121.022 14.466 C306100400030 160.019 56.706 9.109 C306100400031 161.255 35.780 7.502 C306100400032 162.555 30.388 7.500 C306100400033 163.733 13.214 4.821 C306100400034 164.861 24.434 8.037 C306100400035 166.159 13.149 5.894 C306100400036 ENDDATA 20 0 C306100400037 ENDSUBENT 36 0 C306100499999 SUBENT C3061005 20250506 20251001 C306100500001 BIB 4 7 C306100500002 REACTION ((1-H-1(4-BE-12,EL)1-H-1,,DA)= C306100500003 (4-BE-12(P,EL)4-BE-12,,DA)) C306100500004 METHOD The excitation functions measured in the outer C306100500005 columns of the four detectors next to the central C306100500006 detector. C306100500007 ERR-ANALYS (DATA-ERR) Experimental uncertainties. C306100500008 STATUS (CURVE,,C.Hunt+,J,PR/C,108,L051606,2023) Fig. - 5d C306100500009 ENDBIB 7 0 C306100500010 COMMON 2 3 C306100500011 EN-CM-MIN EN-CM-MAX C306100500012 MEV MEV C306100500013 1.0 5.0 C306100500014 ENDCOMMON 3 0 C306100500015 DATA 3 20 C306100500016 ANG-CM DATA-CM DATA-ERR C306100500017 ADEG MB/SR MB/SR C306100500018 130.420 15.054 3.226 C306100500019 131.888 15.054 4.301 C306100500020 133.357 15.591 3.226 C306100500021 134.825 16.667 3.763 C306100500022 136.364 23.656 4.839 C306100500023 137.762 39.247 5.914 C306100500024 139.231 31.720 4.301 C306100500025 140.699 37.634 6.452 C306100500026 142.168 33.871 5.914 C306100500027 143.706 18.817 5.376 C306100500028 145.035 34.409 6.452 C306100500029 146.573 37.097 8.065 C306100500030 147.972 66.129 10.215 C306100500031 149.441 79.032 10.753 C306100500032 150.839 66.667 10.753 C306100500033 152.308 45.161 9.677 C306100500034 153.846 31.720 6.989 C306100500035 155.385 15.054 5.914 C306100500036 156.643 25.269 7.527 C306100500037 158.112 26.344 8.065 C306100500038 ENDDATA 22 0 C306100500039 ENDSUBENT 38 0 C306100599999 SUBENT C3061006 20250506 20251001 C306100600001 BIB 4 14 C306100600002 REACTION 1(4-BE-12(P,0),,EN) C306100600003 2(4-BE-12(P,0),,J) C306100600004 3(4-BE-12(P,0),,PTY) C306100600005 4(4-BE-12(P,EL),,WID) C306100600006 ANALYSIS The R-Matrix analysis performed with the code C306100600007 MINRMATRIX indicates that a good fit can be achieved C306100600008 by including a 1/2+ resonance with c.m. energy E = C306100600009 2.45(1) MeV and a 5/2+ resonance with c.m. energy E = C306100600010 4.15(6) MeV. This fit has four free parameters: the C306100600011 c.m. energies and the spectroscopic factors for the C306100600012 two states. Only two channels were used in the fit: C306100600013 the isospin-allowed proton and neutron decays. C306100600014 ERR-ANALYS (DATA-ERR) Fitting uncertainties. C306100600015 STATUS (TABLE,,C.Hunt+,J,PR/C,108,L051606,2023) Table - II C306100600016 ENDBIB 14 0 C306100600017 NOCOMMON 0 0 C306100600018 DATA 7 2 C306100600019 DATA-CM 1DATA-ERR 1DATA 2DATA 3DATA 4+DATA-ERR C306100600020 -DATA-ERR C306100600021 MEV MEV NO-DIM NO-DIM KEV KEV C306100600022 KEV C306100600023 2.45 0.1 0.5 1. 660. 400.C306100600024 250. C306100600025 4.15 0.06 2.5 1. 600. 100.C306100600026 100. C306100600027 ENDDATA 8 0 C306100600028 ENDSUBENT 27 0 C306100699999 ENDENTRY 6 0 C306199999999