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Measurement of the Branching Fraction Br(Lambda_c+ -> p K- pi+)

Abstract:

We present the first model-independent measurement of the absolute branching fraction of the Lambda_c+ -> p K- pi+ decay using a data sample of 978 fb^-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The number of Lambda_c+ baryons is determined by reconstructing the recoiling D(*)- anti-p pi+ system in events of the type e+e- -> D(*)- anti-p pi+ Lambda_c+. The branching fraction is measured to be Br(Lambda_c+ -> p K- pi+) = (6.84 +- 0.24^{+0.21}_{-0....

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Publication status:
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Journal:
Phys. Rev. Lett.
Volume:
113
Issue:
3-4
Pages:
042002
Publication date:
2013-12-30
DOI:
ISSN:
0370-2693
Source identifiers:
1206
Language:
English
Keywords:
Pubs id:
pubs:1206
UUID:
uuid:95fe2708-55b2-44b8-b0ef-edddc3951f4e
Local pid:
pubs:1206
Deposit date:
2013-11-16

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