This title appears in the Scientific Report :
2022
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevD.105.012004 in citations.
Please use the identifier: http://hdl.handle.net/2128/32501 in citations.
Measurement of B ( B s → D s X ) with B s semileptonic tagging
Measurement of B ( B s → D s X ) with B s semileptonic tagging
We report the first direct measurement of the inclusive branching fraction B(Bs→DsX) via Bs tagging in e+e−→Υ(5S) events. Tagging is accomplished through a partial reconstruction of semileptonic decays Bs→DsXℓν, where X denotes unreconstructed additional hadrons or photons and ℓ is an electron or mu...
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Please use the identifier: http://hdl.handle.net/2128/32501 in citations.
We report the first direct measurement of the inclusive branching fraction B(Bs→DsX) via Bs tagging in e+e−→Υ(5S) events. Tagging is accomplished through a partial reconstruction of semileptonic decays Bs→DsXℓν, where X denotes unreconstructed additional hadrons or photons and ℓ is an electron or muon. With 121.4 fb−1 of data collected at the Υ(5S) resonance by the Belle detector at the KEKB asymmetric-energy e+e− collider, we obtain B(Bs→DsX)=(60.2±5.8±2.3)%, where the first uncertainty is statistical and the second is systematic. |