Neutron-proton asymmetry dependence of nuclear temperature with intermediate mass fragments

Liu, X.; Zheng, H.; Wada, R.; Lin, W.; Huang, M.; Ren, P.; Qu, G.; Han, J.; Rodrigues, M. R. D.; Kowalski, S.; Keutgen, T.; Hagel, K.; Barbui, M.; Bonasera, A.; Natowitz, J. B.

doi:10.1103/physrevc.100.064601

Neutron-proton asymmetry dependence of nuclear temperature with intermediate mass fragments

Journal Article · Wed Dec 04 00:00:00 EST 2019 · Physical Review C

DOI:https://doi.org/10.1103/physrevc.100.064601· OSTI ID:1782214

Liu, X. ^[1]; Zheng, H. ^[2]; Wada, R. ^[3]; Lin, W. ^[4]; Huang, M. ^[5]; Ren, P. ^[4]; Qu, G. ^[4]; Han, J. ^[4]; Rodrigues, M. R. D. ^[6]; Kowalski, S. ^[7]; Keutgen, T. ^[8]; Hagel, K. ^[9]; Barbui, M. ^[9]; Bonasera, A. ^[10]; Natowitz, J. B. ^[9]

Sichuan University, Chengdu (China). Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology; Chinese Academy of Sciences (CAS), Lanzhou (China). Institute of Modern Physics; Cyclotron Institute, Texas A&M University, TX (United States)
Shaanxi Normal University, Xi'an (China)
Texas A & M Univ., College Station, TX (United States). Cyclotron Institute; Henan Normal University, Xinxiang (China)
Sichuan University, Chengdu (China). Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology
Inner Mongolia University for Nationalities, Tongliao (China)
Univ. of Sao Paulo (Brazil). Instituto de Física
Silesia University, Katowice (Poland). Institute of Physics
Université Catholique de Louvain, Louvain-Neuve (Belgium). FNRS and IPN
Texas A & M Univ., College Station, TX (United States). Cyclotron Institute
Texas A & M Univ., College Station, TX (United States). Cyclotron Institute; Istituto Nazionale di Fisica Nucleare (INFN), Catania (Italy). Lab. Nazionali del Sud (INFN-LNS)

The dependence of the nuclear temperature on the source neutron-proton (N/Z) asymmetry is experimentally investigated with the intermediate mass fragments (IMFs) generated from 13 reaction systems with different N/Z asymmetries, ⁶⁴Zn on ¹¹²Sn and ⁷⁰Zn, ⁶⁴Ni on ^112,124Sn, ^58,64Ni, ¹⁹⁷Au, ²³²Th at 40 MeV/nucleon. The apparent source temperatures for these systems are determined from the measured IMFs yields from the intermediate velocity sources using eight carbon-related double isotope ratio thermometers. A rather weak N/Z asymmetry dependence of the source temperature is qualitatively inferred from the extracted N/Z asymmetry dependence of the apparent temperature and that of the relative temperature change by the sequential decay effects with the help of the theoretical simulations. Lastly, the present result is compared with those from other available experiments.

View Accepted Manuscript (DOE)

Research Organization:: Texas A & M Univ., College Station, TX (United States). Cyclotron Institute

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: FG02-93ER40773

OSTI ID:: 1782214

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 6 Vol. 100; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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