@article{10902/36097,
year = {2024},
month = {10},
url = {https://hdl.handle.net/10902/36097},
abstract = {Using proton-proton collision data corresponding to an integrated luminosity of 140 fb-1 collected by the CMS experiment at vs = 13 TeV, the L0b --> J/ps X- K+ decay is observed for the first time, with a statistical significance exceeding 5 standard deviations. The relative branching fraction, with respect to the L0b --> ps(2S) L decay, is measured to be (v(Lub --> J/psx-K+)/v(Lub --> ps (2S) L) = [3.38 ± 1.02 ± 0.61 ± 0.03]%, where the first uncertainty is statistical, the second is systematic, and the third is related to the uncertainties in v(ps(2S) --> J/ps p+ p-) and v(X- --> Lp-).},
organization = {Funded by SCOAP3.},
publisher = {Springer New York LLC},
publisher = {European Physical Journal C, 2024, 84, 1062},
title = {Observation of the L0b --> J/ps X- K+ decay},
author = {Hayrapetyan, A. and Tumasyan, A. and Bhowmik, Sandeep and Blanco Fernández, Sergio and Brochero Cifuentes, Javier Andrés and Cabrillo Bartolomé, José Ibán and Calderón Tazón, Alicia and Duarte Campderros, Jorge and Fernández García, Marcos and Fernández Madrazo, Celia and Gómez Gramuglio, Gervasio and Lasaosa García, Clara and Martínez Rivero, Celso and Martínez Ruiz del Árbol, Pablo and Matorras Weinig, Francisco and Matorras Cuevas, Pablo and Navarrete Ramos, Efrén and Piedra Gómez, Jonatan and Scodellaro, Luca and Vila Álvarez, Iván and Vizán García, Jesús Manuel},
}