Search for B+ -˃ l(+)nu(l)gamma decays with hadronic tagging using the full Belle data sample

Title
Search for B+ -˃ l(+)nu(l)gamma decays with hadronic tagging using the full Belle data sample
Author
천병구
Keywords
MESON DISTRIBUTION AMPLITUDE; IDENTIFICATION; PACKAGE; KEKB
Issue Date
2015-06
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v. 91, NO 11, Page. 112009-112009
Abstract
We search for the decay B+ -˃ l(+)nu(l)gamma with l(+) = e(+) or mu(+) using the full Belle data set of 772 x 10(6) B (B) over bar pairs, collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We reconstruct one B meson in a hadronic decay mode and search for the B+ -˃ l(+)nu(l)gamma decay in the remainder of the event. We observe no significant signal within the phase space of E-gamma(sig) ˃ 1 GeV and obtain upper limits of B(B+ -˃ e(+)nu(e)gamma) ˂ 6.1 x 10(-6), B(B+ -˃ mu(+)nu(mu)gamma) ˂ 3.4 x 10(-6), and B(B+ -˃ l(+)nu(l)gamma) ˂ 3.5 x 10(-6) at 90% credibility level.
URI
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.91.112009http://hdl.handle.net/20.500.11754/25538
ISSN
1550-7998; 1550-2368
DOI
10.1103/PhysRevD.91.112009
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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