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Title: The QCD dynamics of tetraquark production

Abstract

We use the twist dimensions of the operators underlying the dynamical behavior of exclusive production processes as a tool for determining the structure of exotic heavy-quark states such as the Z+c(4430) tetraquark. The resulting counting rules predict distinctive falloffs of the cross sections in center-of-mass energy, thus distinguishing whether the tetraquarks are segregated into di-meson molecules, diquark-antidiquark pairs, or more democratically arranged four-quark states. Additionally, we propose straightforward methods of experimentally producing additional exotic multiquark states.

Authors:
 [1];  [2]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Arizona State Univ., Tempe, AZ (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1179172
Report Number(s):
SLAC-PUB-16259
Journal ID: ISSN 1550-7998; PRVDAQ; arXiv:1505.00803
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 91; Journal Issue: 11; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
phenomenology-HEP; HEPPH; exotic mesons; tetraquarks; diquarks

Citation Formats

Brodsky, Stanley J., and Lebed, Richard F. The QCD dynamics of tetraquark production. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.91.114025.
Brodsky, Stanley J., & Lebed, Richard F. The QCD dynamics of tetraquark production. United States. https://doi.org/10.1103/PhysRevD.91.114025
Brodsky, Stanley J., and Lebed, Richard F. 2015. "The QCD dynamics of tetraquark production". United States. https://doi.org/10.1103/PhysRevD.91.114025. https://www.osti.gov/servlets/purl/1179172.
@article{osti_1179172,
title = {The QCD dynamics of tetraquark production},
author = {Brodsky, Stanley J. and Lebed, Richard F.},
abstractNote = {We use the twist dimensions of the operators underlying the dynamical behavior of exclusive production processes as a tool for determining the structure of exotic heavy-quark states such as the Z+c(4430) tetraquark. The resulting counting rules predict distinctive falloffs of the cross sections in center-of-mass energy, thus distinguishing whether the tetraquarks are segregated into di-meson molecules, diquark-antidiquark pairs, or more democratically arranged four-quark states. Additionally, we propose straightforward methods of experimentally producing additional exotic multiquark states.},
doi = {10.1103/PhysRevD.91.114025},
url = {https://www.osti.gov/biblio/1179172}, journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
issn = {1550-7998},
number = 11,
volume = 91,
place = {United States},
year = {Thu Jun 18 00:00:00 EDT 2015},
month = {Thu Jun 18 00:00:00 EDT 2015}
}