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Measurement of the isospin asymmetry in B -> K-(*)mu(+)mu(-) decays

Abstract:

The isospin asymmetries of B → K (*)μ +μ - decays and the partial branching fractions of B 0 → K 0μ +μ - and B +→ K *+μ +μ - are measured as a function of the di-muon mass squared q 2 using an integrated luminosity of 1.0fb -1 collected with the LHCb detector. The B → Kμ +μ - isospin asymmetry integrated over q 2 is negative, deviating from zero with over 4 σ significance. The B → K *μ +μ - decay measurements are consistent with the Standard Model prediction of negligible isospin asymmetry. T...

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Publication status:
Published

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Publisher copy:
10.1007/JHEP07(2012)133

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Journal:
JOURNAL OF HIGH ENERGY PHYSICS More from this journal
Volume:
2012
Issue:
7
Publication date:
2012-07-01
DOI:
EISSN:
1029-8479
ISSN:
1029-8479
Keywords:
Pubs id:
pubs:348778
UUID:
uuid:c94372fb-f3ca-4bf0-ba3f-f4481bd79189
Local pid:
pubs:348778
Source identifiers:
348778
Deposit date:
2012-12-19

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