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Title: Off-forward gluonic structure of vector mesons

Abstract

Here, the spin-independent and transversity generalized form factors (GFFs) of the Φmeson are studied using lattice QCD calculations with light quark masses corresponding to a pion mass m π ~ 450(5) MeV . One transversity and three spin-independent GFFs related to the lowest moments of leading-twist spin-independent and transversity gluon distributions are obtained at six nonzero values of the momentum transfer up to 1.2 Ge V 2. These quantities are compared with the analogous spin-independent quark GFFs and the electromagnetic form factors determined on the same lattice ensemble. In conclusion, the results show quantitative distinction between the spatial distribution of transversely polarized gluons, unpolarized gluons, and quarks and point the way towards further investigations of the gluon structure of nucleons and nuclei.

Authors:
 [1];  [1];  [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1424911
Alternate Identifier(s):
OSTI ID: 1366772
Grant/Contract Number:  
SC0010495; SC0011090
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Detmold, W., Pefkou, D., and Shanahan, P. E. Off-forward gluonic structure of vector mesons. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.114515.
Detmold, W., Pefkou, D., & Shanahan, P. E. Off-forward gluonic structure of vector mesons. United States. doi:10.1103/PhysRevD.95.114515.
Detmold, W., Pefkou, D., and Shanahan, P. E. Tue . "Off-forward gluonic structure of vector mesons". United States. doi:10.1103/PhysRevD.95.114515. https://www.osti.gov/servlets/purl/1424911.
@article{osti_1424911,
title = {Off-forward gluonic structure of vector mesons},
author = {Detmold, W. and Pefkou, D. and Shanahan, P. E.},
abstractNote = {Here, the spin-independent and transversity generalized form factors (GFFs) of the Φmeson are studied using lattice QCD calculations with light quark masses corresponding to a pion mass mπ ~ 450(5) MeV . One transversity and three spin-independent GFFs related to the lowest moments of leading-twist spin-independent and transversity gluon distributions are obtained at six nonzero values of the momentum transfer up to 1.2 Ge V2. These quantities are compared with the analogous spin-independent quark GFFs and the electromagnetic form factors determined on the same lattice ensemble. In conclusion, the results show quantitative distinction between the spatial distribution of transversely polarized gluons, unpolarized gluons, and quarks and point the way towards further investigations of the gluon structure of nucleons and nuclei.},
doi = {10.1103/PhysRevD.95.114515},
journal = {Physical Review D},
number = 11,
volume = 95,
place = {United States},
year = {Tue Jun 27 00:00:00 EDT 2017},
month = {Tue Jun 27 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 1 work
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