Measurement of branching fractions for B J / K decays and search for a narrow resonance in the J / final state
Iwashita, T.; Miyabayashi, K.; Bhardwaj, V.; Adachi, I.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Bala, A.; Bhuyan, B.; Bonvicini, G.; Bozek, A.; Bracko, M.; Browder, T. E.; Chang, M.-C.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.;
Abstract:
We report an observation of the and decays using pairs collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider. We obtain the branching fractions and . We search for a new narrow charmonium(-like) state in the mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, , at where a -odd partner of may exist, at and assuming their known mass and width, and over a range from 3.8 to . The obtained upper limits at 90 confidence level for , , and are , , and , respectively
| Zugehörige Institution(en) am KIT | Fakultät für Physik – Institut für Experimentelle Kernphysik (IEKP) |
| Publikationstyp | Zeitschriftenaufsatz |
| Publikationsjahr | 2014 |
| Sprache | Englisch |
| Identifikator | ISSN: 2050-3911 urn:nbn:de:swb:90-422696 KITopen-ID: 1000042269 |
| Erschienen in | Progress of Theoretical and Experimental Physics |
| Verlag | Oxford University Press (OUP) |
| Heft | 4 |
| Seiten | 043C01 |
| Bemerkung zur Veröffentlichung | Gefördert durch SCOAP3 |
| Nachgewiesen in | Scopus Dimensions OpenAlex Web of Science |