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Title: Multiquark resonances

Abstract

Multiquark resonances are undoubtedly experimentally observed. The number of states and the amount of details on their properties have been growing over the years. It is very recent the discovery of two pentaquarks and the confirmation of four tetraquarks, two of which had not been observed before. We mainly review the theoretical understanding of this sector of particle physics phenomenology and present some considerations attempting a coherent description of the so called X and Z resonances. The prominent problems plaguing theoretical models, like the absence of selection rules limiting the number of states predicted, motivate new directions in model building. Lastly, data are reviewed going through all of the observed resonances with particular attention to their common features and the purpose of providing a starting point to further research.

Authors:
 [1];  [2]; ORCiD logo [3]
  1. Columbia Univ., New York, NY (United States)
  2. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  3. "Sapienza" Univ. di Roma, Roma (Italy); CERN, Geneva (Switzerland)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1345496
Alternate Identifier(s):
OSTI ID: 1397932
Report Number(s):
JLAB-THY-16-2301; DOE/OR/23177-3888; arXiv:1611.07920
Journal ID: ISSN 0370-1573; PII: S037015731630391X; TRN: US1701186
Grant/Contract Number:  
AC05-06OR23177; FG02-11ER41743
Resource Type:
Accepted Manuscript
Journal Name:
Physics Reports
Additional Journal Information:
Journal Volume: 668; Journal Issue: C; Journal ID: ISSN 0370-1573
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; tetraquarks; pentaquarks; exotic hadron resonances

Citation Formats

Esposito, A., Pilloni, A., and Polosa, Antonio D. Multiquark resonances. United States: N. p., 2016. Web. doi:10.1016/j.physrep.2016.11.002.
Esposito, A., Pilloni, A., & Polosa, Antonio D. Multiquark resonances. United States. doi:10.1016/j.physrep.2016.11.002.
Esposito, A., Pilloni, A., and Polosa, Antonio D. Fri . "Multiquark resonances". United States. doi:10.1016/j.physrep.2016.11.002. https://www.osti.gov/servlets/purl/1345496.
@article{osti_1345496,
title = {Multiquark resonances},
author = {Esposito, A. and Pilloni, A. and Polosa, Antonio D.},
abstractNote = {Multiquark resonances are undoubtedly experimentally observed. The number of states and the amount of details on their properties have been growing over the years. It is very recent the discovery of two pentaquarks and the confirmation of four tetraquarks, two of which had not been observed before. We mainly review the theoretical understanding of this sector of particle physics phenomenology and present some considerations attempting a coherent description of the so called X and Z resonances. The prominent problems plaguing theoretical models, like the absence of selection rules limiting the number of states predicted, motivate new directions in model building. Lastly, data are reviewed going through all of the observed resonances with particular attention to their common features and the purpose of providing a starting point to further research.},
doi = {10.1016/j.physrep.2016.11.002},
journal = {Physics Reports},
number = C,
volume = 668,
place = {United States},
year = {2016},
month = {12}
}

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Cited by: 39 works
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Works referencing / citing this record:

Search for beautiful tetraquarks in the ϒ(1S)μ+μ− invariant-mass spectrum
journal, October 2018

  • Aaij, R.; Adeva, B.; Adinolfi, M.
  • Journal of High Energy Physics, Vol. 2018, Issue 10
  • DOI: 10.1007/jhep10(2018)086

Study of the X ± ( 5568 ) state with semileptonic decays of the B s 0 meson
journal, May 2018


Decay X ( 3872 ) π 0 π + π and S -wave D 0 D ¯ 0 π + π scattering length
journal, June 2019


Observation of the χ b 1 ( 3 P ) and χ b 2 ( 3 P ) and Measurement of their Masses
journal, August 2018


Deciphering the X ( 3872 ) via its Polarization in Prompt Production at the CERN LHC
journal, July 2019


Precision resonance energy scans with the PANDA experiment at FAIR: Sensitivity study for width and line shape measurements of the X(3872)
journal, March 2019


Mass spectrum of the hidden-charm pentaquarks in the compact diquark model
journal, October 2019

  • Ali, Ahmed; Ahmed, Ishtiaq; Aslam, M. Jamil
  • Journal of High Energy Physics, Vol. 2019, Issue 10
  • DOI: 10.1007/jhep10(2019)256

Khuri–Treiman equations for $$\pi \pi $$ π π scattering
journal, July 2018


Doubly charmed tetraquarks in a diquark–antidiquark model
journal, June 2018

  • Yan, Xiaojun; Zhong, Bin; Zhu, Ruilin
  • International Journal of Modern Physics A, Vol. 33, Issue 16
  • DOI: 10.1142/s0217751x18500963

Search for beautiful tetraquarks in the ϒ(1S)μ+μ− invariant-mass spectrum
journal, October 2018

  • Aaij, R.; Adeva, B.; Adinolfi, M.
  • Journal of High Energy Physics, Vol. 2018, Issue 10
  • DOI: 10.1007/jhep10(2018)086

Mass spectrum of the hidden-charm pentaquarks in the compact diquark model
journal, October 2019

  • Ali, Ahmed; Ahmed, Ishtiaq; Aslam, M. Jamil
  • Journal of High Energy Physics, Vol. 2019, Issue 10
  • DOI: 10.1007/jhep10(2019)256

Treating Z c ( 3900 ) and Z ( 4430 ) as the ground state and first radially excited tetraquarks
journal, August 2017


Study of the X ± ( 5568 ) state with semileptonic decays of the B s 0 meson
journal, May 2018


Possible partner state of the Y ( 2175 )
journal, July 2018


Decay X ( 3872 ) π 0 π + π and S -wave D 0 D ¯ 0 π + π scattering length
journal, June 2019


Observation of the χ b 1 ( 3 P ) and χ b 2 ( 3 P ) and Measurement of their Masses
journal, August 2018


Deciphering the X ( 3872 ) via its Polarization in Prompt Production at the CERN LHC
journal, July 2019


Precision resonance energy scans with the PANDA experiment at FAIR: Sensitivity study for width and line shape measurements of the X(3872)
journal, March 2019


Khuri–Treiman equations for $$\pi \pi $$ π π scattering
journal, July 2018


Analysis of the vector tetraquark states with P-waves between the diquarks and antidiquarks via the QCD sum rules
journal, January 2019


New charged resonance $$Z_{c}^{-}(4100)$$ Z c - ( 4100 ) : the spectroscopic parameters and width
journal, March 2019


QCD sum rule studies of $$s s {\bar{s}} {\bar{s}}$$ s s s ¯ s ¯ tetraquark states with $$J^{PC} = 1^{+-}$$ J PC = 1 + -
journal, March 2019


Doubly charmed tetraquarks in a diquark–antidiquark model
journal, June 2018

  • Yan, Xiaojun; Zhong, Bin; Zhu, Ruilin
  • International Journal of Modern Physics A, Vol. 33, Issue 16
  • DOI: 10.1142/s0217751x18500963

The dynamical diquark model: fine structure and isospin
journal, January 2020

  • Giron, Jesse F.; Lebed, Richard F.; Peterson, Curtis T.
  • Journal of High Energy Physics, Vol. 2020, Issue 1
  • DOI: 10.1007/jhep01(2020)124

Towards the understanding of Z c ( 3900 ) from lattice QCD
journal, March 2020