A search for the flavor-changing neutral-current decay Λc+ → p μ+ μ− is reported using a data set corresponding to an integrated luminosity of 3.0 fb^−1 collected by the LHCb Collaboration. No significant signal is observed outside of the dimuon mass regions around the ϕ and ω resonances, and an upper limit is placed on the branching fraction of B(Λc+ → p μ+ μ−) < 7.7 (9.6) × 10^−8 at 90% (95%) confidence level. A significant signal is observed in the ω dimuon mass region for the first time.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2018). Search for the Rare Decay Λc+ → p μ+ μ−. PHYSICAL REVIEW D, 97(9), 1-10 [10.1103/PhysRevD.97.091101].

Search for the Rare Decay Λc+ → p μ+ μ−

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Marconi, U.;Patrignani, C.;Perazzini, S.;Pisani, F.;Vagnoni, V.;Zucchelli, S.
2018

Abstract

A search for the flavor-changing neutral-current decay Λc+ → p μ+ μ− is reported using a data set corresponding to an integrated luminosity of 3.0 fb^−1 collected by the LHCb Collaboration. No significant signal is observed outside of the dimuon mass regions around the ϕ and ω resonances, and an upper limit is placed on the branching fraction of B(Λc+ → p μ+ μ−) < 7.7 (9.6) × 10^−8 at 90% (95%) confidence level. A significant signal is observed in the ω dimuon mass region for the first time.
2018
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2018). Search for the Rare Decay Λc+ → p μ+ μ−. PHYSICAL REVIEW D, 97(9), 1-10 [10.1103/PhysRevD.97.091101].
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/11585/640501
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