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Measurement of the Bs(0)→μ+ μ- branching fraction and search for B(0)→μ+ μ- decays at the LHCb experiment.

Abstract:

A search for the rare decays Bs(0)→μ+ μ- and B(0)→μ+ μ- is performed at the LHCb experiment. The data analyzed correspond to an integrated luminosity of 1  fb(-1) of pp collisions at a center-of-mass energy of 7 TeV and 2  fb(-1) at 8 TeV. An excess of Bs(0)→μ+ μ- signal candidates with respect to the background expectation is seen with a significance of 4.0 standard deviations. A time-integrated branching fraction of B(Bs(0)→μ+ μ-)=(2.9(-1.0)(+1.1))×10(-9) is obtained and an upper limit of B...

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Publication status:
Published

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Journal:
Physical Review Letters More from this journal
Volume:
111
Issue:
10
Pages:
101805
Publication date:
2013-09-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:432095
UUID:
uuid:a748501e-9c3c-40f4-afac-6acaf71af1ec
Local pid:
pubs:432095
Source identifiers:
432095
Deposit date:
2013-11-16

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