Using pp collisions corresponding to 3 fb^−1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractions B(Λ0b → ψ(2S) Λ)/B(Λ0b→ J/ψ Λ) = 0.513 ± 0.023(stat) ± 0.016(syst) ± 0.011(B) is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2019). Measurement of the Ratio of Branching Fractions of the Decays Λ0b → ψ(2S) Λ and Λ0b → J/ψ Λ. JOURNAL OF HIGH ENERGY PHYSICS, 2019(3), 0-15 [10.1007/JHEP03(2019)126].

Measurement of the Ratio of Branching Fractions of the Decays Λ0b → ψ(2S) Λ and Λ0b → J/ψ Λ

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Patrignani, C.;Perazzini, S.;Pisani, F.;Vagnoni, V.;Zucchelli, S.
2019

Abstract

Using pp collisions corresponding to 3 fb^−1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractions B(Λ0b → ψ(2S) Λ)/B(Λ0b→ J/ψ Λ) = 0.513 ± 0.023(stat) ± 0.016(syst) ± 0.011(B) is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used.
2019
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2019). Measurement of the Ratio of Branching Fractions of the Decays Λ0b → ψ(2S) Λ and Λ0b → J/ψ Λ. JOURNAL OF HIGH ENERGY PHYSICS, 2019(3), 0-15 [10.1007/JHEP03(2019)126].
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/11585/688155
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