A search for the rare hadronic decay B0s → p anti-p is performed using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb^−1. No evidence of the decay is found and an upper limit on its branching fraction is set at B(B0s → p anti-p) < 4.4 (5.1) × 10^−9 at 90% (95%) confidence level; this is currently the world’s best upper limit. The decay mode B0 → p anti-p is measured with very large significance, confirming the first observation by the LHCb experiment in 2017. The branching fraction is determined to be B(B0 → p anti-p) = (1.27 ± 0.15 ± 0.05 ± 0.04) × 10^−8, where the first uncertainty is statistical, the second is systematic and the third is due to the external branching fraction of the normalization channel B0 → K+ π−. The combination of the two LHCb measurements of the B0 → p anti-p branching fraction yields B(B0 → p anti-p) = (1.27 ± 0.13 ± 0.05 ± 0.03) × 10^−8.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Search for the Rare Hadronic Decay B0s → p anti-p. PHYSICAL REVIEW D, 108(1), 1-12 [10.1103/PhysRevD.108.012007].

Search for the Rare Hadronic Decay B0s → p anti-p

Carbone, A.;Ferrari, F.;Galli, D.;Manuzzi, D.;Patrignani, C.;Villa, A.;Zucchelli, S.;
2023

Abstract

A search for the rare hadronic decay B0s → p anti-p is performed using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb^−1. No evidence of the decay is found and an upper limit on its branching fraction is set at B(B0s → p anti-p) < 4.4 (5.1) × 10^−9 at 90% (95%) confidence level; this is currently the world’s best upper limit. The decay mode B0 → p anti-p is measured with very large significance, confirming the first observation by the LHCb experiment in 2017. The branching fraction is determined to be B(B0 → p anti-p) = (1.27 ± 0.15 ± 0.05 ± 0.04) × 10^−8, where the first uncertainty is statistical, the second is systematic and the third is due to the external branching fraction of the normalization channel B0 → K+ π−. The combination of the two LHCb measurements of the B0 → p anti-p branching fraction yields B(B0 → p anti-p) = (1.27 ± 0.13 ± 0.05 ± 0.03) × 10^−8.
2023
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Search for the Rare Hadronic Decay B0s → p anti-p. PHYSICAL REVIEW D, 108(1), 1-12 [10.1103/PhysRevD.108.012007].
Aaij, R.; Abdelmotteleb, A.S.W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C.A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/952218
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