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URN: urn:nbn:de:swb:90-422696

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.; Cho, K.; ... mehr

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 Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2014
Sprache Englisch
Identifikator ISSN: 2050-3911
KITopen ID: 1000042269
Erschienen in Progress of Theoretical and Experimental Physics
Heft 4
Seiten 043C01
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
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