Searching for beauty-fully bound tetraquarks using lattice nonrelativistic QCD
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1426010
- Alternate Identifier(s):
- OSTI ID: 1407122
- Report Number(s):
- FERMILAB-PUB-17-381-T; arXiv:1710.03236
Journal ID: ISSN 2470-0010; PRVDAQ; 054505
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 5; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Hughes, Ciaran, Eichten, Estia, and Davies, Christine T. H. Searching for beauty-fully bound tetraquarks using lattice nonrelativistic QCD. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.97.054505.
Hughes, Ciaran, Eichten, Estia, & Davies, Christine T. H. Searching for beauty-fully bound tetraquarks using lattice nonrelativistic QCD. United States. https://doi.org/10.1103/PhysRevD.97.054505
Hughes, Ciaran, Eichten, Estia, and Davies, Christine T. H. Wed .
"Searching for beauty-fully bound tetraquarks using lattice nonrelativistic QCD". United States. https://doi.org/10.1103/PhysRevD.97.054505.
@article{osti_1426010,
title = {Searching for beauty-fully bound tetraquarks using lattice nonrelativistic QCD},
author = {Hughes, Ciaran and Eichten, Estia and Davies, Christine T. H.},
abstractNote = {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.},
doi = {10.1103/PhysRevD.97.054505},
journal = {Physical Review D},
number = 5,
volume = 97,
place = {United States},
year = {Wed Mar 14 00:00:00 EDT 2018},
month = {Wed Mar 14 00:00:00 EDT 2018}
}
https://doi.org/10.1103/PhysRevD.97.054505
Web of Science
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