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Title: Isoscalar mesons and exotic states in light front holographic QCD

Abstract

In this article a systematic quantitative analysis of the isoscalar bosonic states is performed in the framework of supersymmetric light front holographic QCD. It is shown that the spectroscopy of the η and h mesons can be well described if one additional mass parameter—which corresponds to the hard breaking of chiral U(1) symmetry in standard QCD—is introduced. The mass difference of the η and η' isoscalar mesons is then determined by the strange quark mass content of the η'. The theory also predicts the existence of isoscalar tetraquarks which are bound states of diquarks and antidiquarks. Here, the candidates for these exotic isoscalar tetraquarks are identified. In particular, the f0(1500) is identified as isoscalar tetraquark; the predicted mass value 1.52 GeV agrees with the measured experimental value within the model uncertainties.

Authors:
 [1];  [2];  [3];  [4]
  1. Chinese Academy of Sciences, Lanzhou (China)
  2. Chinese Academy of Sciences, Lanzhou (China); Inst. für Theoretische Physik der Univ., Heidelberg (Germany)
  3. Univ. de Costa Rica, San Jose (Costa Rica)
  4. Stanford Univ., Stanford, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1529660
Alternate Identifier(s):
OSTI ID: 1546730
Grant/Contract Number:  
AC02-76SF00515; 11575254; 11805242
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 99; 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

Zou, Liping, Dosch, Hans Günter, de Téramond, Guy F., and Brodsky, Stanley J. Isoscalar mesons and exotic states in light front holographic QCD. United States: N. p., 2019. Web. doi:10.1103/physrevd.99.114024.
Zou, Liping, Dosch, Hans Günter, de Téramond, Guy F., & Brodsky, Stanley J. Isoscalar mesons and exotic states in light front holographic QCD. United States. doi:10.1103/physrevd.99.114024.
Zou, Liping, Dosch, Hans Günter, de Téramond, Guy F., and Brodsky, Stanley J. Wed . "Isoscalar mesons and exotic states in light front holographic QCD". United States. doi:10.1103/physrevd.99.114024.
@article{osti_1529660,
title = {Isoscalar mesons and exotic states in light front holographic QCD},
author = {Zou, Liping and Dosch, Hans Günter and de Téramond, Guy F. and Brodsky, Stanley J.},
abstractNote = {In this article a systematic quantitative analysis of the isoscalar bosonic states is performed in the framework of supersymmetric light front holographic QCD. It is shown that the spectroscopy of the η and h mesons can be well described if one additional mass parameter—which corresponds to the hard breaking of chiral U(1) symmetry in standard QCD—is introduced. The mass difference of the η and η' isoscalar mesons is then determined by the strange quark mass content of the η'. The theory also predicts the existence of isoscalar tetraquarks which are bound states of diquarks and antidiquarks. Here, the candidates for these exotic isoscalar tetraquarks are identified. In particular, the f0(1500) is identified as isoscalar tetraquark; the predicted mass value 1.52 GeV agrees with the measured experimental value within the model uncertainties.},
doi = {10.1103/physrevd.99.114024},
journal = {Physical Review D},
number = 11,
volume = 99,
place = {United States},
year = {2019},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/physrevd.99.114024

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