Publications
Publication Information
| Title | Exotic to standard bottomonium transitions |
| Authors | Jaume Tarrus Castella, Emilie Passemar |
| JLAB number | JLAB-THY-21-3349 |
| LANL number | arXiv:2104.03975 |
| Other number | DOE/OR/23177-5167 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review D Volume 104 Page(s) 034019 Refereed | |
| Publication Abstract: | We study the transition widths of ?(10753) and ?(11020) into standard bottomonium under the hypothesis that they correspond to the two lowest laying 1^-- hybrid bottomonium states. We employ weakly coupled potential NRQCD an effective filed theory incorporating the heavy quark and multipole expansions. We consider the transitions generated by the leading order and next-to-leading order singlet-octet operators. In the multipole expansion the heavy quark matrix elements factorize from the production of light-quark mesons by gluonic operators. For the leading order operator we compute the widths with a single ?^0, ? or ?^0 in the final state and for the next-toleading operator for ?^+?^- or K^+K^-. The hadronization of the gluonic operators is obtained, in the first case, from the axial anomaly and a standard ?^0 -? -?' mixing scheme and, in the second case, we employ a coupled-channel dispersive representation matched to chiral perturbation theory for both the S and D wave pieces of the gluonic operator. We compare with experimental values and semi-inclusive widths. Our results strongly suggest that ?(11020) is indeed a hybrid bottomonium state. |
| Experiment Numbers: | |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevD.104.034019 |
| Accepted Manuscript: | PhysRevD.104.034019.pdf |
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