- 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 -...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1016/j.physletb.2011.02.039
-
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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:
- Copyright date:
- 2011
- Notes:
- 8 pages 2 figures. Published in Physics Letters B
Journal article
First observation of Bs -> D_{s2}^{*+} X mu nu decays
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