期刊
EUROPEAN PHYSICAL JOURNAL C
卷 78, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-018-6269-z
关键词
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资金
- Perimeter Institute for Theoretical Physics
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Economic Development Innovation
- US Department of Energy [de-sc0011941]
- Swiss National Science Foundation [200020-169696]
- National Center of Competence in Research SwissMAP
We study the case of a di-bottomonium bb (b) over bar(b) over bar particle 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 (b) over bar(b) over bar tetraquark is expected approximately 100 MeV below threshold, and compare to a recent analysis by LHCb seeking it in the Y mu mu final state.
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