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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:
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)
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
OSTI Identifier:
1117630

Alexandrou, Constantia, Constantinou, Martha, Dinter, Simon, Drach, Vincent, Jansen, Karl, Hadjiyiannakou, Kyriakos, and Renner, Dru B. A stochastic method for computing hadronic matrix elements. United States: N. p., Web. doi:10.1140/epjc/s10052-013-2692-3.
Alexandrou, Constantia, Constantinou, Martha, Dinter, Simon, Drach, Vincent, Jansen, Karl, Hadjiyiannakou, Kyriakos, & Renner, Dru B. A stochastic method for computing hadronic matrix elements. United States. doi:10.1140/epjc/s10052-013-2692-3.
Alexandrou, Constantia, Constantinou, Martha, Dinter, Simon, Drach, Vincent, Jansen, Karl, Hadjiyiannakou, Kyriakos, and Renner, Dru B. 2014. "A stochastic method for computing hadronic matrix elements". United States. doi:10.1140/epjc/s10052-013-2692-3. https://www.osti.gov/servlets/purl/1117630.
@article{osti_1117630,
title = {A stochastic method for computing hadronic matrix elements},
author = {Alexandrou, Constantia and Constantinou, Martha and Dinter, Simon and Drach, Vincent and Jansen, Karl and Hadjiyiannakou, Kyriakos and Renner, Dru B.},
abstractNote = {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.},
doi = {10.1140/epjc/s10052-013-2692-3},
journal = {European Physical Journal. C, Particles and Fields},
number = 1,
volume = 74,
place = {United States},
year = {2014},
month = {1}
}