A measurement of the shape of the differential decay rate and the associated Isgur-Wise function for the decay Λ0b → Λc+ μ− anti-ν_μ is reported, using data corresponding to 3 fb^−1 collected with the LHCb detector in proton-proton collisions. The Λc+ μ− anti-ν_μ (+anything) final states are reconstructed through the detection of a muon and a Λc+ baryon decaying into p K− π+, and the decays Λ0b → Λc+ π+ π− μ− anti-ν_μ are used to determine contributions from Λ0b → Λc*+ μ− anti-ν_μ decays. The measured dependence of the differential decay rate upon the squared four-momentum transfer between the heavy baryons, q^2, is compared with expectations from heavy-quark effective theory and from unquenched lattice QCD predictions.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Measurement of the Shape of the Λ0b → Λc+ μ− anti-ν_μ Differential Decay Rate. PHYSICAL REVIEW D, 96(11), 1-15 [10.1103/PhysRevD.96.112005].

Measurement of the Shape of the Λ0b → Λc+ μ− anti-ν_μ Differential Decay Rate

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Marconi, U.;Mussini, M.;Patrignani, C.;Perazzini, S.;Vagnoni, V.;Zucchelli, S.
2017

Abstract

A measurement of the shape of the differential decay rate and the associated Isgur-Wise function for the decay Λ0b → Λc+ μ− anti-ν_μ is reported, using data corresponding to 3 fb^−1 collected with the LHCb detector in proton-proton collisions. The Λc+ μ− anti-ν_μ (+anything) final states are reconstructed through the detection of a muon and a Λc+ baryon decaying into p K− π+, and the decays Λ0b → Λc+ π+ π− μ− anti-ν_μ are used to determine contributions from Λ0b → Λc*+ μ− anti-ν_μ decays. The measured dependence of the differential decay rate upon the squared four-momentum transfer between the heavy baryons, q^2, is compared with expectations from heavy-quark effective theory and from unquenched lattice QCD predictions.
2017
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Measurement of the Shape of the Λ0b → Λc+ μ− anti-ν_μ Differential Decay Rate. PHYSICAL REVIEW D, 96(11), 1-15 [10.1103/PhysRevD.96.112005].
Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Alfonso Albero, A.; Ali, S.; Alkhazov, G.; Alvar...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/614135
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