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Title: Two-nucleon higher partial-wave scattering from lattice QCD

Here, we present a determination of nucleon-nucleon scattering phase shifts for L>0. The S,P,D and F phase shifts for both the spin-triplet and spin-singlet channels are computed for the first time with lattice Quantum ChromoDynamics. This required the design and implementation of novel lattice methods involving displaced sources and momentum-space cubic sinks. In order to demonstrate the utility of our approach, the calculations were performed in the SU(3)-flavor limit where the light quark masses have been tuned to the physical strange quark mass, corresponding to m π=m K≈800~MeV. Two spatial volumes of V ≈ (3.5 fm) 3 and V ≈ (4.6 fm) 3 were used. Furthermore, the finite-volume spectrum is extracted from the exponential falloff of the correlation functions. Said spectrum is mapped onto the infinite volume phase shifts using the generalization of the Luscher formalism for two-nucleon systems.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [1] ;  [3] ; ORCiD logo [1] ; ORCiD logo [5]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physics Division
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division; Univ. of California, Berkeley, CA (United States). Dept. of Physics
  3. Univ. of California, Berkeley, CA (United States). Dept. of Physics
  4. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States). Theory Center
  5. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States). Theory Center; College of William and Mary, Williamsburg, VA (United States). Dept. of Physics
Publication Date:
Report Number(s):
JLAB-THY-15-2116; DOE/OR/23177-3481; arXiv:1508.00886; LLNL-JRNL-674381
Journal ID: ISSN 0370-2693; PII: S0370269316307626
Grant/Contract Number:
AC02-05CH11231; LDRD 13-ERD-023; AC52-07NA27344; KB0301052; SC00046548; AC05-06OR23177; SC0012180
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 765; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1336490
Alternate Identifier(s):
OSTI ID: 1336399; OSTI ID: 1377779; OSTI ID: 1379731