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Title: Bottom tetraquark production at RHIC?

Abstract

A resonance has been observed by the ANDY Collaboration at the Relativistic Heavy-Ion Collider at Brookhaven National Laboratory in Cu + Au collisions at center-of-mass energy s =200 GeV and at forward rapidity with an average mass of 18.15 GeV. The Collaboration suggests that it is a b b ¯ b b ¯ tetraquark state decaying to two γ ( 1 S ) states, each measured through the Υggg channel. Here, their suggestion is investigated assuming that the two Υ states are produced through the materialization of a |uudb b ¯ b b ¯ ] Fock state in the projectile. The Υ pair mass and rapidity distributions arising from such a state are calculated. The production of an X b (b b ¯ b b ¯ ) tetraquark state from the same Fock configuration is also investigated. The dependence on bottom quark mass and their transverse momentum range is also studied. It is found that double Υ production from these |uudb b ¯ b b ¯ ] states peak in the rapidity range of the ANDY detector. The Υ pair and X b masses are, however, higher than the mass reported by the ANDY Collaboration. Thus the results obtained from these calculations are incompatible with the ANDY result. They are, however, compatible with previous predictions of b b ¯ b b ¯ tetraquark masses.

Authors:
ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1830833
Alternate Identifier(s):
OSTI ID: 1868855
Report Number(s):
LLNL-JRNL-826228
Journal ID: ISSN 2470-0010; PRVDAQ; 094025
Grant/Contract Number:  
AC52-07NA27344; 21-LW-034
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 104 Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; particle & resonance production; QCD in nuclear reactions; quantum chromodynamics; bottom quark

Citation Formats

Vogt, R., and Angerami, A. Bottom tetraquark production at RHIC?. United States: N. p., 2021. Web. doi:10.1103/PhysRevD.104.094025.
Vogt, R., & Angerami, A. Bottom tetraquark production at RHIC?. United States. https://doi.org/10.1103/PhysRevD.104.094025
Vogt, R., and Angerami, A. Wed . "Bottom tetraquark production at RHIC?". United States. https://doi.org/10.1103/PhysRevD.104.094025.
@article{osti_1830833,
title = {Bottom tetraquark production at RHIC?},
author = {Vogt, R. and Angerami, A.},
abstractNote = {A resonance has been observed by the ANDY Collaboration at the Relativistic Heavy-Ion Collider at Brookhaven National Laboratory in Cu+Au collisions at center-of-mass energy s=200 GeV and at forward rapidity with an average mass of 18.15 GeV. The Collaboration suggests that it is a bb¯bb¯ tetraquark state decaying to two γ(1S) states, each measured through the Υ→ggg channel. Here, their suggestion is investigated assuming that the two Υ states are produced through the materialization of a |uudbb¯bb¯] Fock state in the projectile. The Υ pair mass and rapidity distributions arising from such a state are calculated. The production of an Xb(bb¯bb¯) tetraquark state from the same Fock configuration is also investigated. The dependence on bottom quark mass and their transverse momentum range is also studied. It is found that double Υ production from these |uudbb¯bb¯] states peak in the rapidity range of the ANDY detector. The Υ pair and Xb masses are, however, higher than the mass reported by the ANDY Collaboration. Thus the results obtained from these calculations are incompatible with the ANDY result. They are, however, compatible with previous predictions of bb¯bb¯ tetraquark masses.},
doi = {10.1103/PhysRevD.104.094025},
journal = {Physical Review D},
number = 9,
volume = 104,
place = {United States},
year = {Wed Nov 17 00:00:00 EST 2021},
month = {Wed Nov 17 00:00:00 EST 2021}
}

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