Measurement of the shape of the differential decay rate
R Aaij, C Abellán Beteta, T Ackernley, B Adeva… - Journal of High Energy …, 2020 - Springer
Journal of High Energy Physics, 2020•Springer
A bstract The shape of the\({B} _s^ 0\to {D} _s^{\ast-}{\mu}^{+}{\nu} _ {\mu}\) 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\({B} _s^ 0\to {D} _s^{\ast-}{\mu}^{+}{\nu} _ {\mu}\)
decay is reconstructed through the decays\({D} _s^{\ast-}\to {D} _s^{-}\gamma\) and\({D} _s^{-
}\to {K}^{-}{K}^{+}{\pi}^{-}\). The differential decay rate is fitted with the Caprini-Lellouch …
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\({B} _s^ 0\to {D} _s^{\ast-}{\mu}^{+}{\nu} _ {\mu}\)
decay is reconstructed through the decays\({D} _s^{\ast-}\to {D} _s^{-}\gamma\) and\({D} _s^{-
}\to {K}^{-}{K}^{+}{\pi}^{-}\). The differential decay rate is fitted with the Caprini-Lellouch …
Abstract
The shape of the 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 decay is reconstructed through the decays and. 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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