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Measurement of the shape of the B s 0 → D s ∗ − μ + ν μ differential decay rate

Published version
Peer-reviewed

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Type

Article

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Authors

Aaij, R. 
Abellán Beteta, C. 
Ackernley, T. 
Adeva, B. 
Adinolfi, M. 

Abstract

Abstract: The shape of the Bs0→Ds∗−μ+νμ differential decay rate is obtained as a function of the hadron recoil parameter using proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.7 fb−1 collected by the LHCb detector. The Bs0→Ds∗−μ+νμ decay is reconstructed through the decays Ds∗−→Ds−γ and Ds−→K−K+π−. The differential decay rate is fitted with the Caprini-Lellouch-Neubert (CLN) and Boyd-Grinstein-Lebed (BGL) parametrisations of the form factors, and the relevant quantities for both are extracted.

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Keywords

Regular Article - Experimental Physics, B physics, Flavor physics, Hadron-Hadron scattering (experiments)

Journal Title

Journal of High Energy Physics

Conference Name

Journal ISSN

1029-8479

Volume Title

2020

Publisher

Springer Berlin Heidelberg