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Title: A stochastic method for computing hadronic matrix elements

In this study, we present a stochastic method for the calculation of baryon 3-point functions which is an alternative to the typically used sequential method offering more versatility. We analyze the scaling of the error of the stochastically evaluated 3-point function with the lattice volume and find a favorable signal to noise ratio suggesting that the stochastic method can be extended to large volumes providing an efficient approach to compute hadronic matrix elements and form factors.
Authors:
 [1] ;  [2] ;  [3] ;  [3] ;  [3] ;  [2] ;  [4]
  1. Univ. of Cyprus, Nicosia (Cyprus); The Cyprus Institute, Nicosia (Cyprus)
  2. Univ. of Cyprus, Nicosia (Cyprus)
  3. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  4. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
OSTI Identifier:
1117630
Report Number(s):
JLAB-THY--13-6; DOE/OR--23177-2407
Journal ID: ISSN 1434-6044; arXiv:1302.2608
Grant/Contract Number:
AC05-06OR23177
Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 74; Journal Issue: 1; Journal ID: ISSN 1434-6044
Publisher:
Springer
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC) (United States)
Contributing Orgs:
ETM Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS nucleon matrix element; lattice QCD; stochastic estimation