Observation of the Λb0→J/ψΞ-K+ and Ξb0→J/ψΞ-π+ decays

Saitta B.;Provenzano D.;Oldeman R.;Manca G.;Litvinov R.;Fabiano F.;Dettori F.;De Angelis C.;
2025-01-01

Abstract

The first observation of the Ξb0→J/ψΞ-π+ decay and the most precise measurement of the branching fraction of the Λb0→J/ψΞ-K+ decay are reported, using proton-proton collision data from the LHCb experiment collected in 2016–2018 at a centre-of-mass energy of 13\,TeV, corresponding to an integrated luminosity of 5.4\,fb-1. Using the Λb0→J/ψΛ and Ξb-→J/ψΞ- decays as normalisation channels, the ratios of branching fractions are measured to be (Formula presented.) where the first uncertainty is statistical and the second systematic.
2025
Inglese
85
7
812
https://link.springer.com/article/10.1140/epjc/s10052-025-14129-6
Comitato scientifico
scientifica
Zunica, G.; Zuliani, D.; Zou, Q.; Zhuo, J.; Zhukov, V.; Zhu, X.; Zhu, X.; Zhu, L. Z.; Zhovkovska, V.; Zhou, Y.; Zhou, X.; Zhou, T.; Zheng, Y.; Zheng, ...espandi
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
1147
open
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