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Title: Revealing the strength of three-nucleon interactions with the proposed Einstein Telescope

Journal Article · · Physical Review. C
ORCiD logo [1];  [1]; ORCiD logo [2];  [3];  [4];  [3]; ORCiD logo [5]; ORCiD logo [5]
  1. Univ. of Potsdam (Germany)
  2. Univ. of Potsdam (Germany); Max Planck Institute for Gravitational Physics, Potsdam (Germany)
  3. Nikhef Theory Group, Amsterdam (Netherlands); Utrecht University (Netherlands)
  4. ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav), Clayton, VIC (Australia)
  5. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Nuclear systems, ranging from atomic nuclei to dense matter probed in neutron stars, are governed by strong interactions. Three-nucleon forces have been found to be a crucial ingredient for the reliable description of these systems. Here, in this work, we explore how astrophysical data on neutron stars and their mergers from current and next-generation observatories will enable us to distinguish nuclear Hamiltonians. In particular, we investigate two different nuclear Hamiltonians that have been adjusted to reproduce two-nucleon scattering data and properties of light nuclei, but differ in the three-nucleon interactions among neutrons. We find that no significant constraints can be obtained from current data, but that the proposed Einstein Telescope could provide strong evidence to distinguish among these Hamiltonians.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
89233218CNA000001; AC02-05CH11231
OSTI ID:
2008276
Report Number(s):
LA-UR--22-21458
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 2 Vol. 108; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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