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Title: A $$bb{\bar{b}}{\bar{b}}$$ di-bottomonium at the LHC?

Abstract

We study the case of a di-bottomonium $$bb\bar{b}$$$\bar{b}$$ par-ticle at the LHC. Its mass and decay width are obtained within a new model of diquark–antidiquark interactions in tetraquarks. The same model solves several open problems on the phenomenology of the experimentally better known X, Z states. We show that the $$bb\bar{b}$$$\bar{b}$$ tetraquark is expected approximately 100 MeV below threshold, and compare to a recent analysis by LHCb seeking it in the Yμμ final state.

Authors:
ORCiD logo;
Publication Date:
Research Org.:
Columbia Univ., New York, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1619347
Alternate Identifier(s):
OSTI ID: 1509982
Grant/Contract Number:  
de-sc0011941; SC0011941
Resource Type:
Published Article
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Name: European Physical Journal. C, Particles and Fields Journal Volume: 78 Journal Issue: 9; Journal ID: ISSN 1434-6044
Publisher:
Springer Science + Business Media
Country of Publication:
Germany
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Esposito, Angelo, and Polosa, Antonio D. A $$bb{\bar{b}}{\bar{b}}$$ di-bottomonium at the LHC?. Germany: N. p., 2018. Web. https://doi.org/10.1140/epjc/s10052-018-6269-z.
Esposito, Angelo, & Polosa, Antonio D. A $$bb{\bar{b}}{\bar{b}}$$ di-bottomonium at the LHC?. Germany. https://doi.org/10.1140/epjc/s10052-018-6269-z
Esposito, Angelo, and Polosa, Antonio D. Wed . "A $$bb{\bar{b}}{\bar{b}}$$ di-bottomonium at the LHC?". Germany. https://doi.org/10.1140/epjc/s10052-018-6269-z.
@article{osti_1619347,
title = {A $$bb{\bar{b}}{\bar{b}}$$ di-bottomonium at the LHC?},
author = {Esposito, Angelo and Polosa, Antonio D.},
abstractNote = {We study the case of a di-bottomonium $bb\bar{b}$$\bar{b}$ par-ticle at the LHC. Its mass and decay width are obtained within a new model of diquark–antidiquark interactions in tetraquarks. The same model solves several open problems on the phenomenology of the experimentally better known X, Z states. We show that the $bb\bar{b}$$\bar{b}$ tetraquark is expected approximately 100 MeV below threshold, and compare to a recent analysis by LHCb seeking it in the Yμμ final state.},
doi = {10.1140/epjc/s10052-018-6269-z},
journal = {European Physical Journal. C, Particles and Fields},
number = 9,
volume = 78,
place = {Germany},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1140/epjc/s10052-018-6269-z

Figures / Tables:

Fig. 1 Fig. 1: Comparison between the experimental values of δ and Γ for the X Z resonances and the Γ = A√δ law. All the ground state tetraquarks fit the curve remarkably well, with a value of the fitted parameter A = 9.4 ± 1.5 MeV1/2 common to both the charmmore » and beauty resonances. We also report the expected with of the Z(4430), which is underestimated with respect to the observed one. Indeed, being the Z(4430) an excited state, the decay towards a ground state tetraquark (rather than a meson pair) is also available« less

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.