Analysis of hidden-bottom bbb¯b¯ states

. Motivated by the searching for b b b ¯ b ¯ states at LHC recently, we calculate the ground-state energies of b b b ¯ b ¯ states with quantum numbers I J P = 00 + , 01 + , 02 + in a nonrelativistic chiral quark model using the Gaussian expansion method. In our calculations, two structures, meson-me...

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Bibliographic Details
Published in:The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2019-07, Vol.55 (7)
Main Author: Chen, Xiaoyun
Format: Article
Language:English
Subjects:
Hadrons
Heavy Ions
Nuclear Fusion
Nuclear Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Regular Article - Theoretical Physics
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Summary:. Motivated by the searching for b b b ¯ b ¯ states at LHC recently, we calculate the ground-state energies of b b b ¯ b ¯ states with quantum numbers I J P = 00 + , 01 + , 02 + in a nonrelativistic chiral quark model using the Gaussian expansion method. In our calculations, two structures, meson-meson and diquark-antidiquark, and their coupling, along with all possible color, spin configurations are considered. No bound state is found, a resonance with mass of 19GeV is possible. It is expected that the studies shall be helpful for the experimental searching of fully heavy exotic tetraquark states.
ISSN:1434-6001
1434-601X
DOI:10.1140/epja/i2019-12807-2