Search for B decays to final states with the eta(c) meson

Title
Search for B decays to final states with the eta(c) meson
Authors
천병구
Keywords
Exotics; Quarkonium; e plus -e-; Experiments; B physics; Particle and resonance production
Issue Date
2015-06
Publisher
SPRINGER
Citation
JOURNAL OF HIGH ENERGY PHYSICS, NO 6, Page. 1-23
Abstract
We report a search for B decays to selected final states with the eta (c) meson: B (+/-) -˃ K (+/-) eta (c) pi (+) pi (-), B-+/- -˃ K-+/-eta(c)pi(+)pi(-), B-+/- -˃ K-+/-eta(c)eta and B-+/- -˃ K-+/-eta(c)pi(0). The analysis is based on 772 x 10(6) B (B) over bar pairs collected at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e (+)e (-) collider. We set 90% confidence level upper limits on the branching fractions of the studied B decay modes, independent of intermediate resonances, in the range (0.6-5.3) x 10(-4). We also search for molecular-state candidates in the D-0 (D) over bar*(0) - (D) over bar (0) D*(0), D-0 (D) over bar (0) + (D) over bar (0) D-0 and D*(0) (D) over bar*(0) + D*(0) (D) over bar*(0) D*(0) combinations, neutral partners of the Z(3900)(+/-) and Z(4020)(+/-), and a poorly understood state X(3915) as possible intermediate states in the decay chain, and set 90% confidence level upper limits on the product of branching fractions to the mentioned intermediate states and decay branching fractions of these states in the range (0.6-6.9) x 10(-5).
URI
http://link.springer.com/article/10.1007%2FJHEP06%282015%29132http://hdl.handle.net/20.500.11754/25523
ISSN
1029-8479
DOI
http://dx.doi.org/10.1007/JHEP06(2015)132
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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