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Title: The optical potential on the lattice

The extraction of hadron-hadron scattering parameters from lattice data by using the Luscher approach becomes increasingly complicated in the presence of inelastic channels. We propose a method for the direct extraction of the complex hadron-hadron optical potential on the lattice, which does not require the use of the multi-channel Luscher formalism. Furthermore, this method is applicable without modifications if some inelastic channels contain three or more particles.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [1]
  1. Univ. Bonn, Bonn (Germany). Helmhlotz-Institut fur Strahlen -und Kernphysik (Theorie) and Bethe Center for Theoretical Physics
  2. The George Washington Univ., Washington, D.C. (United States). Institute for Nuclear Studies and APSIS, Dept. of Physics; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  3. Univ. Bonn, Bonn (Germany). Helmhlotz-Institut fur Strahlen -und Kernphysik (Theorie) and Bethe Center for Theoretical Physics; Forschungszentrum Julich, Julich (Germany); Institute for Advanced Simulation (IAS-4), Institut fur Kernphysik (IKP-3) and Julich Center for Hadron Physics
Publication Date:
OSTI Identifier:
1306423
Report Number(s):
JLAB-THY--16-2314; DOE/OR/23177--3911; arXiv:1603.07205
Journal ID: ISSN 1029-8479; PII: 4113; NSFCAREER grant No. 1452055; PIF grant No. 1415459
Grant/Contract Number:
AC05-06OR23177
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 6; Related Information: Jefferson Lab publications: https://misportal.jlab.org/ul/publications/view_pub.cfm?pub_id=14481; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Chiral Lagrangians; effective field theories; lattice QCD