Physics Letters B (Jun 2024)
Constraining nucleon effective masses with flow and stopping observables from the SπRIT experiment
- C.Y. Tsang,
- M. Kurata-Nishimura,
- M.B. Tsang,
- W.G. Lynch,
- Y.X. Zhang,
- J. Barney,
- J. Estee,
- G. Jhang,
- R. Wang,
- M. Kaneko,
- J.W. Lee,
- T. Isobe,
- T. Murakami,
- D.S. Ahn,
- L. Atar,
- T. Aumann,
- H. Baba,
- K. Boretzky,
- J. Brzychczyk,
- G. Cerizza,
- N. Chiga,
- N. Fukuda,
- I. Gasparic,
- B. Hong,
- A. Horvat,
- K. Ieki,
- N. Inabe,
- Y.J. Kim,
- T. Kobayashi,
- Y. Kondo,
- P. Lasko,
- H.S. Lee,
- Y. Leifels,
- J. Łukasik,
- J. Manfredi,
- A.B. McIntosh,
- P. Morfouace,
- T. Nakamura,
- N. Nakatsuka,
- S. Nishimura,
- H. Otsu,
- P. Pawłowski,
- K. Pelczar,
- D. Rossi,
- H. Sakurai,
- C. Santamaria,
- H. Sato,
- H. Scheit,
- R. Shane,
- Y. Shimizu,
- H. Simon,
- A. Snoch,
- A. Sochocka,
- T. Sumikama,
- H. Suzuki,
- D. Suzuki,
- H. Takeda,
- S. Tangwancharoen,
- H. Törnqvist,
- Y. Togano,
- Z.G. Xiao,
- S.J. Yennello,
- Y. Zhang
Affiliations
- C.Y. Tsang
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics, Michigan State University, East Lansing, MI 48824, USA; Kent State University, 800 E Summit St, Kent, OH, 44240, USA; Corresponding author.
- M. Kurata-Nishimura
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan; Corresponding author at: RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
- M.B. Tsang
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics, Michigan State University, East Lansing, MI 48824, USA; Corresponding author at: Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA.
- W.G. Lynch
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics, Michigan State University, East Lansing, MI 48824, USA; Corresponding author at: Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA.
- Y.X. Zhang
- China Institute of Atomic Energy; Beijing, 102413, PR China
- J. Barney
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics, Michigan State University, East Lansing, MI 48824, USA
- J. Estee
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics, Michigan State University, East Lansing, MI 48824, USA
- G. Jhang
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- R. Wang
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- M. Kaneko
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan; Department of Physics, Kyoto University, Kita-shirakawa, Kyoto 606-8502, Japan
- J.W. Lee
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
- T. Isobe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan; Corresponding author at: RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
- T. Murakami
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan; Department of Physics, Kyoto University, Kita-shirakawa, Kyoto 606-8502, Japan; Corresponding author at: RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
- D.S. Ahn
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- L. Atar
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
- T. Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
- H. Baba
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- K. Boretzky
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
- J. Brzychczyk
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Kraków, Poland
- G. Cerizza
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- N. Chiga
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- N. Fukuda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- I. Gasparic
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan; Division of Experimental Physics, Rudjer Boskovic Institute, Zagreb, Croatia; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- B. Hong
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
- A. Horvat
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
- K. Ieki
- Department of Physics, Rikkyo University, Nishi-Ikebukuro 3-34-1, Tokyo 171-8501, Japan
- N. Inabe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Y.J. Kim
- Rare Isotope Science Project, Institute for Basic Science, Daejeon 34047, Republic of Korea
- T. Kobayashi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
- Y. Kondo
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
- P. Lasko
- Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, 31-342 Kraków, Poland
- H.S. Lee
- Rare Isotope Science Project, Institute for Basic Science, Daejeon 34047, Republic of Korea
- Y. Leifels
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
- J. Łukasik
- Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, 31-342 Kraków, Poland
- J. Manfredi
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics, Michigan State University, East Lansing, MI 48824, USA
- A.B. McIntosh
- Cyclotron Institute, Texas A&M University, College Station, TX 77843, USA
- P. Morfouace
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- T. Nakamura
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
- N. Nakatsuka
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan; Department of Physics, Kyoto University, Kita-shirakawa, Kyoto 606-8502, Japan
- S. Nishimura
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- H. Otsu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- P. Pawłowski
- Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, 31-342 Kraków, Poland
- K. Pelczar
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Kraków, Poland
- D. Rossi
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
- H. Sakurai
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- C. Santamaria
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- H. Sato
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- H. Scheit
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- R. Shane
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- Y. Shimizu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- H. Simon
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
- A. Snoch
- Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands
- A. Sochocka
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Kraków, Poland
- T. Sumikama
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- H. Suzuki
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- D. Suzuki
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- H. Takeda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- S. Tangwancharoen
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA; Department of Physics, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok, Thailand; Center of Excellence in Theoretical and Computational Science (TACS-CoE), Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
- H. Törnqvist
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
- Y. Togano
- Department of Physics, Rikkyo University, Nishi-Ikebukuro 3-34-1, Tokyo 171-8501, Japan
- Z.G. Xiao
- Department of Physics, Tsinghua University, Beijing 100084, PR China
- S.J. Yennello
- Cyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Chemistry, Texas A&M University, College Station, TX 77843, USA
- Y. Zhang
- Department of Physics, Tsinghua University, Beijing 100084, PR China
- Journal volume & issue
-
Vol. 853
p. 138661
Abstract
Properties of the nuclear equation of state (EoS) can be probed by measuring the dynamical properties of nucleus-nucleus collisions. In this study, we present the directed flow (v1), elliptic flow (v2) and stopping (VarXZ) measured in fixed target Sn + Sn collisions at Image 1 with the SπRIT Time Projection Chamber. We perform Bayesian analyses in which EoS parameters are varied simultaneously within the Improved Quantum Molecular Dynamics-Skyrme (ImQMD-Sky) transport code to obtain a multivariate correlated constraint. The varied parameters include symmetry energy, S0, and slope of the symmetry energy, L, at saturation density, isoscalar effective mass, ms⁎/mN, isovector effective mass, mv⁎/mN and the in-medium cross-section enhancement factor η. We find that the flow and VarXZ observables are sensitive to the splitting of proton and neutron effective masses and the in-medium cross-section. Comparisons of ImQMD-Sky predictions to the SπRIT data suggest a narrow range of preferred values for ms⁎/mN, mv⁎/mN and η.
