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Title: Using QCD counting rules to identify the production of gluonium

Abstract

The empirical identification of bound states of gluons has remained a central goal of hadron spectroscopy. We suggest an experimentally challenging, but model–independent way to assess which zero charge, isospin-zero mesons have a large gluonium light-front wave function component in the quark and gluon Fock space of QCD. Our method exploits QCD counting rules which relate the power-law fall-off of production amplitudes at high momentum transfer to the meson’s twist (dimension minus spin of its minimum interpolating operators). Scalar 0 + glueballs composed of two valence gluons with zero internal orbital angular momentum have twist τ=2.

Authors:
 [1]; ORCiD logo [2]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Univ. Complutense Madrid (Spain)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532374
Grant/Contract Number:  
FPA2016-75654-C2-1-P; AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 793; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Brodsky, Stanley J., and Llanes-Estrada, Felipe J. Using QCD counting rules to identify the production of gluonium. United States: N. p., 2019. Web. doi:10.1016/j.physletb.2019.05.011.
Brodsky, Stanley J., & Llanes-Estrada, Felipe J. Using QCD counting rules to identify the production of gluonium. United States. doi:10.1016/j.physletb.2019.05.011.
Brodsky, Stanley J., and Llanes-Estrada, Felipe J. Wed . "Using QCD counting rules to identify the production of gluonium". United States. doi:10.1016/j.physletb.2019.05.011. https://www.osti.gov/servlets/purl/1532374.
@article{osti_1532374,
title = {Using QCD counting rules to identify the production of gluonium},
author = {Brodsky, Stanley J. and Llanes-Estrada, Felipe J.},
abstractNote = {The empirical identification of bound states of gluons has remained a central goal of hadron spectroscopy. We suggest an experimentally challenging, but model–independent way to assess which zero charge, isospin-zero mesons have a large gluonium light-front wave function component in the quark and gluon Fock space of QCD. Our method exploits QCD counting rules which relate the power-law fall-off of production amplitudes at high momentum transfer to the meson’s twist (dimension minus spin of its minimum interpolating operators). Scalar 0+ glueballs composed of two valence gluons with zero internal orbital angular momentum have twist τ=2.},
doi = {10.1016/j.physletb.2019.05.011},
journal = {Physics Letters. Section B},
number = C,
volume = 793,
place = {United States},
year = {2019},
month = {5}
}

Journal Article:
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