Plans for exotic bottomonium-like states at Belle II

Sumitted to PubDB: 2017-11-10

Category: Talk, Visibility: Public

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Authors	Umberto Tamponi
Date	Sept. 29, 2017
Belle II Number	BELLE2-TALK-CONF-2017-102
Abstract	Large mass, non-relativistic dynamics, large energy level spacing and clear experimental signature are unique characteristics of the bottomonium states that make this sector so rich with a wide range of opportunities for new studies, ranging from the the spin structure of QCD to the extensions of the SM Lagrangian, from the non-qq¯ states and light quarks dynamics to the gluon fragmentation functions. Experimentally only high-luminosity e+e− colliders with s√>9 GeV can collect enough statistics to study this system in details fully exploiting its potential. For this reason the BelleII experiment at Super-KEKB collider offers the most promising prospects for the study of this sector in the next decade. We will here review the opportunities offered by data taking periods at the Υ(3S), Υ(5S) and Υ(6S) energies, focusing on the variety of studies that can be conducted using bottomonium annihilations: study of conventional and exotic quarkonoium spectroscopy, the search for new physics in rare decays of heavy mesons, the study of the light scalar meson family using di-pion transitions among bottomonia, and study of QCD bound states like deuteron and di-baryons with astrophysics implications.
Conference	Hadron 2017