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Journal article

First observation of Bs -> D_{s2}^{*+} X mu nu decays

Abstract:

Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the semileptonic decays Bs -> Ds+ X mu nu and Bs -> D0 K+ X mu nu are detected. Two structures are observed in the D0 K+ mass spectrum at masses consistent with the known D^+_{s1}(2536) and $D^{*+}_{s2}(2573) mesons. The measured branching fractions relative to the total Bs semileptonic rate are B(Bs -> D_{s2}^{*+} X mu nu)/B(Bs -> X mu nu)= (3.3\pm 1.0\pm 0.4)%, and B(Bs -...

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Publication status:
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Authors


Collaboration, L More by this author
Adinolfi, M More by this author
Adrover, C More by this author
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Journal:
Phys.Lett.B
Volume:
698
Issue:
1
Pages:
14-20
Publication date:
2011-02-02
DOI:
ISSN:
0370-2693
URN:
uuid:75ee20e5-231d-459c-a0b5-c7952a452b94
Source identifiers:
135031
Local pid:
pubs:135031
Keywords:

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