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Title: Constructing Nucleon Operators on a Lattice for Form Factors with High Momentum Transfer

Abstract

We present preliminary results of computing nucleon form factor at high momentum transfer using the 'boosted' or 'momentum' smearing. We use gauge configurations generated with N f = 2 + 1dynamical Wilson-clover fermions and study the connected as well as disconnected contributions to the nucleon form factors. Our initial results indicate that boosted smearing helps to improve the signal for nucleon correlators at high momentum. However, we also find evidence for large excited state contributions, which will likely require variational analysis to isolate the boosted nucleon ground state.

Authors:
 [1];  [2];  [3];  [4]
  1. Stony Brook Univ., NY (United States)
  2. College of William and Mary, Williamsburg, VA (United States)
  3. Univ. of Regensburg (Germany)
  4. College of William and Mary, Williamsburg, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1364528
Report Number(s):
JLAB-THY-17-2505; DOE/OR/23177-4167
DOE Contract Number:
DE-FG02-04ER41302
Resource Type:
Conference
Resource Relation:
Journal Name: Proceedings of Science; Journal Volume: LATTICE2016; Conference: Lattice 2016, Southampton, UK, July 24-30, 2016
Country of Publication:
United States
Language:
English

Citation Formats

Syritsyn, Sergey, Gambhir, Arjun S., Musch, Bernhard U., and Orginos, Konstantinos. Constructing Nucleon Operators on a Lattice for Form Factors with High Momentum Transfer. United States: N. p., 2017. Web.
Syritsyn, Sergey, Gambhir, Arjun S., Musch, Bernhard U., & Orginos, Konstantinos. Constructing Nucleon Operators on a Lattice for Form Factors with High Momentum Transfer. United States.
Syritsyn, Sergey, Gambhir, Arjun S., Musch, Bernhard U., and Orginos, Konstantinos. Mon . "Constructing Nucleon Operators on a Lattice for Form Factors with High Momentum Transfer". United States. doi:. https://www.osti.gov/servlets/purl/1364528.
@article{osti_1364528,
title = {Constructing Nucleon Operators on a Lattice for Form Factors with High Momentum Transfer},
author = {Syritsyn, Sergey and Gambhir, Arjun S. and Musch, Bernhard U. and Orginos, Konstantinos},
abstractNote = {We present preliminary results of computing nucleon form factor at high momentum transfer using the 'boosted' or 'momentum' smearing. We use gauge configurations generated with N f = 2 + 1dynamical Wilson-clover fermions and study the connected as well as disconnected contributions to the nucleon form factors. Our initial results indicate that boosted smearing helps to improve the signal for nucleon correlators at high momentum. However, we also find evidence for large excited state contributions, which will likely require variational analysis to isolate the boosted nucleon ground state.},
doi = {},
journal = {Proceedings of Science},
number = ,
volume = LATTICE2016,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2017},
month = {Mon May 01 00:00:00 EDT 2017}
}

Conference:
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