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Title: Two nucleon systems at m π ~ 450 MeV from lattice QCD

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
 [1];  [2];  [3];  [3];  [3];  [4]
  1. College of William and Mary, Williamsburg, VA (United States); Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
  2. Univ. de Barcelona, Marti Franques (Spain)
  3. Univ. of Washington, Seattle, WA (United States)
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Nucleon-nucleon systems are studied with lattice quantum chromodynamics at a pion mass of $$m_\pi\sim 450~{\rm MeV}$$ in three spatial volumes using $$n_f=2+1$$ flavors of light quarks. At the quark masses employed in this work, the deuteron binding energy is calculated to be $$B_d = 14.4^{+3.2}_{-2.6} ~{\rm MeV}$$, while the dineutron is bound by $$B_{nn} = 12.5^{+3.0}_{-5.0}~{\rm MeV}$$. Over the range of energies that are studied, the S-wave scattering phase shifts calculated in the 1S0 and 3S1-3D1 channels are found to be similar to those in nature, and indicate repulsive short-range components of the interactions, consistent with phenomenological nucleon-nucleon interactions. In both channels, the phase shifts are determined at three energies that lie within the radius of convergence of the effective range expansion, allowing for constraints to be placed on the inverse scattering lengths and effective ranges. Thus, the extracted phase shifts allow for matching to nuclear effective field theories, from which low energy counterterms are extracted and issues of convergence are investigated. As part of the analysis, a detailed investigation of the single hadron sector is performed, enabling a precise determination of the violation of the Gell-Mann–Okubo mass relation.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
NPLQCD Collaboration
Grant/Contract Number:
OCI-1053575; PHY1206498; NSF PHY11- 25915; AC02-05CH11231; SC001347; FG02-04ER41302; FG02-00ER41132; AC05-00OR22725; AC05-06OR23177; SC0010495; FIS2011-24154
OSTI ID:
1233509
Alternate ID(s):
OSTI ID: 1233893
Report Number(s):
JLAB-THY-15-2130; DOE/OR/23177-3565; arXiv:1508.07583; INT-PUB-15-042; NSF-KITP-15-120; NT@UW-15-09; MIT-CTP-4709; PRVDAQ; TRN: US1601149
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 92, Issue 11; ISSN 1550-7998
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 81 works
Citation information provided by
Web of Science

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Cited By (11)

Baryon interactions from lattice QCD with physical quark masses – Nuclear forces and ΞΞ forces – journal January 2018
From effective field theories to effective density functionals in and beyond the mean field journal May 2016
Chiral EFT based nuclear forces: achievements and challenges journal July 2016
Hyperons: the strange ingredients of the nuclear equation of state journal September 2018
Two-nucleon scattering in a modified Weinberg approach with a symmetry-preserving regularization journal September 2016
Hadrons and nuclei journal November 2019
Local Nucleon-Nucleon and Three-Nucleon Interactions Within Chiral Effective Field Theory journal January 2020
Historical perspective and future prospects for nuclear interactions text January 2017
Scattering amplitudes from finite-volume spectral functions text January 2019
Consistency checks for two-body finite-volume matrix elements: I. Conserved currents and bound states text January 2019
Local nucleon-nucleon and three-nucleon interactions within chiral effective field theory text January 2020