ENTRY C2698 20241029 C247C269800000001 SUBENT C2698001 20241029 C247C269800100001 BIB 12 72 C269800100002 TITLE Impact of shell structure on the fusion of C269800100003 neutron-rich mid-mass nuclei C269800100004 AUTHOR (V.Singh,J.E.Johnstone,R.Giri,S.Hudan,J.Vadas, C269800100005 R.T.Desouza,D.Ackermann,A.Chbihi,Q.Hourdille, C269800100006 A.Abbott,C.Balhoff,A.Hannaman,A.B.Mcintosh, C269800100007 M.Sorensen,Z.Tobin,A.Wakhle,S.J.Yennello,M.A.Famiano, C269800100008 K.W.Brown,C.Santamaria,J.Lubian,H.O.Soler,B.V.Carlson) C269800100009 REFERENCE (J,PR/C,104,L041601,2021) C269800100010 #doi:10.1103/PhysRevC.104.L041601 C269800100011 INSTITUTE (1USAINU,2FR GAN,1USATAM,1USAWMU,1USAMSU,3BZLUFF, C269800100012 3BZLITA) C269800100013 (2FR FR) Normandie Universite, Unicaen, 14032 Caen, C269800100014 France C269800100015 FACILITY (LINAC,1USAMSU) Experiment performed at the ReA3 C269800100016 accelerator facility at Michigan State University C269800100017 INC-SOURCE Radioactive beams of K and Ar ions were produced by C269800100018 colliding 48Ca beams at 140A MeV with a Be production C269800100019 target at the coupled-cyclotron facility at MSU-NSCL. C269800100020 The resulting reaction products were filtered by the C269800100021 A1900 spectrometer and thermalized in a gas stopper. C269800100022 They were subsequently extracted from the gas stopper, C269800100023 charge bred to a high-charge state, and accelerated C269800100024 by the ReA3 linac. The intensities of the K and Ar C269800100025 beams incident on the target ranged between 1.0E+4 C269800100026 (44Ar/s) and 4.5E+4 (39K/s). C269800100027 SAMPLE The 16-O target was produced by evaporating 28Si in a C269800100028 vacuum of 1E-6 Torr. The oxygen content in the target C269800100029 was measured by Rutherford backscattering. Oxygen C269800100030 thickness was of 98+-4 mu-g/cm2 along with a Si C269800100031 thickness of 258+-10 mu-g/cm2. C269800100032 DETECTOR (TELES,IOCH,MCPLT) Two microchannel plate detectors C269800100033 with two axial field ionization detectors were placed C269800100034 upstream of the target to identify incoming ions by C269800100035 dE-TOF method. The electron emission foil of the C269800100036 downstream MCP detector also served as the target in C269800100037 the experiment C269800100038 (SI) Evaporation residue were detected in an annular C269800100039 Si detectors that subtend the angular range 1.0 deg < C269800100040 Theta(lab) < 7.3 deg. C269800100041 (MCPLT) Two microchannel plate detectors were placed C269800100042 downstream of the target to measure time of flight of C269800100043 heavy reaction products. C269800100044 METHOD (EDE,TOF) Particles were identified using dE-TOF methodC269800100045 ANALYSIS The fusion cross section sigmaF is extracted from the C269800100046 measured yield of ERs through the relation sigmaF = C269800100047 NER/(epsilonER *t*NI ), where NI is the number of C269800100048 beam particles of a given type incident on the target, C269800100049 t is the target thickness, epsilonER is the detection C269800100050 efficiency, and NER is the number of evaporation C269800100051 residues detected. The number NI is determined by C269800100052 counting the particles with the appropriate time of C269800100053 flight between the two MCPs that have the correct C269800100054 identification in the E-TOF map. The measured target C269800100055 thickness was used. The number of detected residues, C269800100056 NER, is determined by summing the number of detected C269800100057 residues identified by the ETOF technique. C269800100058 Uncertainty in identifying an ER associated with C269800100059 fusion on 16O is reflected in the error bars C269800100060 presented. To obtain the detection efficiency, C269800100061 epsilonER, a statistical model was used to describe C269800100062 the deexcitation of the fusion product together with C269800100063 the geometric acceptance of the experimental setup. C269800100064 The detection efficiency varied between ~82% and 83% C269800100065 over the entire energy range. C269800100066 ERR-ANALYS (ERR-T) The statistical uncertainties of the C269800100067 measurement dominate the error bars shown. C269800100068 (ERR-1) The second-largest contribution to the total C269800100069 uncertainty in the cross section is due to the target C269800100070 thickness and is 4%. C269800100071 HISTORY (20220131C) Compiled by S.H. C269800100072 (20241029A) BP. Data in sub002 updated. Sub007, #doi, C269800100073 ANALYSIS added. C269800100074 ENDBIB 72 0 C269800100075 COMMON 1 3 C269800100076 ERR-1 C269800100077 PER-CENT C269800100078 4.0 C269800100079 ENDCOMMON 3 0 C269800100080 ENDSUBENT 79 0 C269800199999 SUBENT C2698002 20241029 C247C269800200001 BIB 3 3 C269800200002 REACTION (8-O-16(19-K-39,FUS),,SIG,ER) C269800200003 STATUS (CURVE,,V.Singh+,J,PR/C,104,L041601,2021) Fig. 5. C269800200004 HISTORY (20241029A) BP. Data updated. C269800200005 ENDBIB 3 0 C269800200006 NOCOMMON 0 0 C269800200007 DATA 3 11 C269800200008 EN-CM DATA ERR-T C269800200009 MEV MB MB C269800200010 24.703 1.112E+02 7.998E+00 C269800200011 25.250 1.655E+02 1.062E+01 C269800200012 25.518 1.587E+02 1.020E+01 C269800200013 26.099 1.903E+02 1.661E+01 C269800200014 26.990 2.459E+02 1.582E+01 C269800200015 28.145 2.647E+02 2.104E+01 C269800200016 28.762 2.874E+02 2.506E+01 C269800200017 29.571 2.944E+02 2.119E+01 C269800200018 30.536 3.501E+02 3.052E+01 C269800200019 31.884 3.862E+02 1.872E+01 C269800200020 32.846 3.890E+02 3.391E+01 C269800200021 ENDDATA 13 0 C269800200022 ENDSUBENT 21 0 C269800299999 SUBENT C2698003 20220131 C215C269800300001 BIB 2 3 C269800300002 REACTION (8-O-16(19-K-45,FUS),,SIG,ER) C269800300003 STATUS (CURVE) Data taken from fig.1a of the reference. C269800300004 Waiting for data from author C269800300005 ENDBIB 3 0 C269800300006 NOCOMMON 0 0 C269800300007 DATA 4 10 C269800300008 EN-CM EN-RSL DATA ERR-T C269800300009 MEV MEV MB MB C269800300010 23.33 0.12 9.90E+01 1.91E+01 C269800300011 23.80 0.09 1.60E+02 1.97E+01 C269800300012 24.51 0.12 1.92E+02 1.78E+01 C269800300013 25.08 0.14 2.34E+02 2.34E+01 C269800300014 25.93 0.12 2.97E+02 3.87E+01 C269800300015 26.37 0.12 2.87E+02 3.03E+01 C269800300016 27.16 0.12 2.71E+02 3.10E+01 C269800300017 27.61 0.12 3.91E+02 4.19E+01 C269800300018 27.80 0.10 3.45E+02 2.86E+01 C269800300019 29.58 0.09 3.19E+02 3.69E+01 C269800300020 ENDDATA 12 0 C269800300021 ENDSUBENT 20 0 C269800399999 SUBENT C2698004 20220131 C215C269800400001 BIB 2 3 C269800400002 REACTION (8-O-16(19-K-47,FUS),,SIG,ER) C269800400003 STATUS (CURVE) Data taken from fig.1a of the reference. C269800400004 Waiting for data from author C269800400005 ENDBIB 3 0 C269800400006 NOCOMMON 0 0 C269800400007 DATA 4 7 C269800400008 EN-CM EN-RSL DATA ERR-T C269800400009 MEV MEV MB MB C269800400010 23.83 0.16 1.24E+02 1.31E+01 C269800400011 24.27 0.16 1.66E+02 1.40E+01 C269800400012 24.84 0.18 1.76E+02 1.69E+01 C269800400013 25.33 0.16 2.24E+02 2.69E+01 C269800400014 26.57 0.16 2.84E+02 3.70E+01 C269800400015 27.90 0.18 3.42E+02 5.75E+01 C269800400016 28.89 0.17 3.56E+02 3.20E+01 C269800400017 ENDDATA 9 0 C269800400018 ENDSUBENT 17 0 C269800499999 SUBENT C2698005 20220131 C215C269800500001 BIB 2 3 C269800500002 REACTION (8-O-16(18-AR-36,FUS),,SIG,ER) C269800500003 STATUS (CURVE) Data taken from fig.1b of the reference. C269800500004 Waiting for data from author C269800500005 ENDBIB 3 0 C269800500006 NOCOMMON 0 0 C269800500007 DATA 4 6 C269800500008 EN-CM EN-RSL DATA ERR-T C269800500009 MEV MEV MB MB C269800500010 23.99 0.10 1.17E+02 1.65E+01 C269800500011 24.56 0.12 2.36E+02 2.42E+01 C269800500012 25.28 0.10 2.54E+02 2.30E+01 C269800500013 27.74 0.13 3.31E+02 3.26E+01 C269800500014 28.54 0.12 3.74E+02 3.20E+01 C269800500015 29.93 0.12 4.69E+02 3.57E+01 C269800500016 ENDDATA 8 0 C269800500017 ENDSUBENT 16 0 C269800599999 SUBENT C2698006 20220131 C215C269800600001 BIB 2 3 C269800600002 REACTION (8-O-16(18-AR-44,FUS),,SIG,ER) C269800600003 STATUS (CURVE) Data taken from fig.1b of the reference. C269800600004 Waiting for data from author C269800600005 ENDBIB 3 0 C269800600006 NOCOMMON 0 0 C269800600007 DATA 4 6 C269800600008 EN-CM EN-RSL DATA ERR-T C269800600009 MEV MEV MB MB C269800600010 23.58 0.13 2.23E+02 3.71E+01 C269800600011 24.19 0.11 2.88E+02 3.54E+01 C269800600012 25.09 0.12 3.52E+02 3.47E+01 C269800600013 26.39 0.12 3.32E+02 3.91E+01 C269800600014 27.87 0.11 3.83E+02 5.04E+01 C269800600015 28.53 0.12 4.04E+02 4.42E+01 C269800600016 ENDDATA 8 0 C269800600017 ENDSUBENT 16 0 C269800699999 SUBENT C2698007 20250131 C247C269800700001 BIB 3 3 C269800700002 REACTION (8-O-16(19-K-41,FUS),,SIG,ER) C269800700003 STATUS (CURVE,,V.Singh+,J,PR/C,104,L041601,2021) Fig. 5. C269800700004 HISTORY (20241029C) BP. C269800700005 ENDBIB 3 0 C269800700006 NOCOMMON 0 0 C269800700007 DATA 3 9 C269800700008 EN-CM DATA ERR-T C269800700009 MEV MB MB C269800700010 23.654 1.034E+02 1.210E+01 C269800700011 24.000 1.605E+02 3.944E+01 C269800700012 24.577 1.645E+02 1.682E+01 C269800700013 25.346 1.802E+02 2.755E+01 C269800700014 26.038 2.041E+02 4.497E+01 C269800700015 26.077 2.797E+02 2.227E+01 C269800700016 27.115 3.358E+02 2.928E+01 C269800700017 29.231 3.771E+02 3.289E+01 C269800700018 29.808 6.466E+02 6.127E+01 C269800700019 ENDDATA 11 0 C269800700020 ENDSUBENT 19 0 C269800799999 ENDENTRY 7 0 C269899999999