English

Exotic bottomonium hadronic transitions

High Energy Physics - Phenomenology 2023-01-11 v1

Abstract

We report on a recent computation of the transitions of exotic bottomonium to standard bottomonium and light quark hadrons. We work under the assumption that the Υ(10753)\Upsilon(10753) and Υ(11020)\Upsilon(11020) can be described as the lowest laying and first excitation 11^{--} hybrid bottomonium states, respectively. The computation has two distinct parts: the heavy quark transition matrix elements, which are obtained in a nonrelativistic EFT incorporating the heavy quark, multipole and adiabatic expansions; and the hadronization of the gluonic operators into the light-meson final states. The single mesons production is obtained through the axial anomaly and a standard π0ηη\pi^0-\eta-\eta' mixing scheme. Two pion and kaon production is obtained by solving the coupled Omn\`es problem. We also present result for semi-inclusive transitions.

Keywords

Cite

@article{arxiv.2209.08548,
  title  = {Exotic bottomonium hadronic transitions},
  author = {Jaume Tarrús Castellà},
  journal= {arXiv preprint arXiv:2209.08548},
  year   = {2023}
}

Comments

8 pages, 4 figures. Contribution to the proceedings of the conference "15th Quark Confinement and the Hadron Spectrum"

R2 v1 2026-06-28T01:31:58.092Z