Comparison of heavy-ion transport simulations: Mean-field dynamics in a box

Colonna, Maria; Zhang, Ying-Xun; Wang, Yong-Jia; Cozma, Dan; Danielewicz, Pawel; Ko, Che Ming; Ono, Akira; Tsang, Manyee Betty; Wang, Rui; Wolter, Hermann; Xu, Jun; Zhang, Zhen; Chen, Lie-Wen; Cheng, Hui-Gan; Elfner, Hannah; Feng, Zhao-Qing; Kim, Myungkuk; Kim, Youngman; Jeon, Sangyong; Lee, Chang-Hwan; Li, Bao-An; Li, Qing-Feng; Li, Zhu-Xia; Mallik, Swagata; Oliinychenko, Dmytro; Su, Jun; Song, Taesoo; Sorensen, Agnieszka; Zhang, Feng-Shou

doi:10.1103/physrevc.104.024603

Title: Comparison of heavy-ion transport simulations: Mean-field dynamics in a box

Journal Article · 05 August 2021 · Physical Review C

DOI: https://doi.org/10.1103/physrevc.104.024603 · OSTI ID:1832469

Colonna, Maria ^[1]; Zhang, Ying-Xun ^[2]; Wang, Yong-Jia ^[3]; Cozma, Dan ^[4]; Danielewicz, Pawel ^[5]; Ko, Che Ming ^[6]; Ono, Akira ^[7]; Tsang, Manyee Betty ^[5]; Wang, Rui ^[8]; Wolter, Hermann ^[9]; Xu, Jun ^[10]; Zhang, Zhen ^[11]; Chen, Lie-Wen ^[12]; Cheng, Hui-Gan ^[13]; Elfner, Hannah ^[14]; Feng, Zhao-Qing ^[13]; Kim, Myungkuk ^[15]; Kim, Youngman ^[16]; Jeon, Sangyong ^[17]; Lee, Chang-Hwan ^[18] more »

INFN-LNS, Catania (Italy); Michigan State Univ, E Lansing, MI
China Inst. of Atomic Energy, Beijing (China); Guangxi Key Lab. Breeding Base of Nuclear Physics and Technology, Guilin (China)
Huzhou Univ. (China)
IFIN-HH, Măgurele-Bucharest (Romania)
Michigan State Univ., East Lansing, MI (United States)
Texas A & M Univ., College Station, TX (United States)
Tohoku Univ., Sendai (Japan)
Chinese Academy of Sciences, Shanghai (China); Fudan Univ., Shanghai (China)
Univ. of Munich, Garching (Germany)
Chinese Academy of Sciences, Shanghai (China)
Sun Yat-sen Univ., Zhuhai (China)
Shanghai Jiao Tong Univ. (China)
South China Univ. of Technology, Guangzhou (China)
Johann Wolfgang Goethe Univ., Frankfurt am Main (Germany); Goethe Univ., Frankfurt am Main (Germany); GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt (Germany)
Ulsan National Inst. of Science and Technology (Korea)
Inst. for Basic Science, Daejeon (Korea)
McGill Univ., Montreal, QC (Canada)
Pusan National Univ., Busan (Korea)
Texas A & M Univ., Commerce, TX (United States)
Huzhou Univ. (China); Chinese Academy of Sciences, Lanzhou (China)
China Inst. of Atomic Energy, Beijing (China)
Variable Energy Cyclotron Centre, Kolkata (India)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of Washington, Seattle, WA (United States)
Johann Wolfgang Goethe Univ., Frankfurt am Main (Germany); Univ. Gießen (Germany)
Univ. of California, Los Angeles, CA (United States)
Beijing Normal Univ. (China); Beijing Radiation Center (China)

Within the transport model evaluation project (TMEP) of simulations for heavy-ion collisions, the mean-field response is examined here. Specifically, zero-sound propagation is considered for neutron-proton symmetric matter enclosed in a periodic box, at zero temperature and around normal density. The results of several transport codes belonging to two families (BUU-like and QMD-like) are compared among each other and to exact calculations. For BUU-like codes, employing the test particle method, the results depend on the combination of the number of test particles and the spread of the profile functions that weight integration over space. These parameters can be properly adapted to give a good reproduction of the analytical zero-sound features. QMD-like codes, using molecular dynamics methods, are characterized by large damping effects, attributable to the fluctuations inherent in their phase-space representation. Moreover, for a given nuclear effective interaction, they generally lead to slower density oscillations, as compared to BUU-like codes. The latter problem is mitigated in the more recent lattice formulation of some of the QMD codes. Furthermore, the significance of these results for the description of real heavy-ion collisions is discussed.

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Research Organization:: Michigan State Univ., East Lansing, MI (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-05CH11231; SC0009971; SC0013702; SC0015266; SC0021235

OSTI ID:: 1832469

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 2 Vol. 104; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Journal Article · 2018 · Physical Review C · OSTI ID:1658222

Zhang, Ying-Xun; Wang, Yong-Jia; Colonna, Maria; +27 more

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Low & intermediate energy heavy-ion reactions
Models & methods for nuclear reactions
Nuclear reactions

Title: Comparison of heavy-ion transport simulations: Mean-field dynamics in a box

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