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Title: Searching for beauty-fully bound tetraquarks using lattice nonrelativistic QCD

Journal Article · · Physical Review D

Motivated by multiple phenomenological considerations, we perform the first search for the existence of a $$\bar{bb}bb$$ tetraquark bound state with a mass below the lowest noninteracting bottomonium-pair threshold using the first-principles lattice nonrelativistic QCD methodology. Here, we use a full S-wave color/spin basis for the $$\bar{bb}bb$$ operators in the three 0++, 1+- and 2++ channels. We employ four gluon field ensembles at multiple lattice spacing values ranging from a=0.06–0.12 fm, all of which include u, d, s and c quarks in the sea, and one ensemble which has physical light-quark masses. Additionally, we perform novel exploratory work with the objective of highlighting any signal of a near threshold tetraquark, if it existed, by adding an auxiliary potential into the QCD interactions. With our results we find no evidence of a QCD bound tetraquark below the lowest noninteracting thresholds in the channels studied.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1426010
Alternate ID(s):
OSTI ID: 1407122
Report Number(s):
FERMILAB-PUB-17-381-T; arXiv:1710.03236; PRVDAQ; 054505
Journal Information:
Physical Review D, Journal Name: Physical Review D Vol. 97 Journal Issue: 5; ISSN 2470-0010
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 75 works
Citation information provided by
Web of Science

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Cited By (4)

Analysis of hidden-bottom $bb\bar{b}\bar{b}$ states journal July 2019
Hadrons and nuclei journal November 2019
Spectroscopy and decays of the fully-heavy tetraquarks journal August 2018
A $$bb{\bar{b}}{\bar{b}}$$ di-bottomonium at the LHC? journal September 2018

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