Publikation: Zeitschriftenartikel

Study of B0s J/+ K+K decays

Grunddaten
Abstract
Autoren
Einrichtung

Grunddaten

Titel	Study of B0s J/+ K+K decays
Erscheinungsjahr	2021
Seiten (von – bis)	1 – 33
Heft-Nr.	2
Jahr	2021
Publikationsform	Elektronische Ressource
Publikationsart	Zeitschriftenartikel
Sprache	Englisch
DOI	10.1007/JHEP02(2021)024
Letzte Änderung	11.01.2022 06:03:05
Bearbeitungsstatus	durch UB Rostock abschließend validiert
Dauerhafte URL	http://purl.uni-rostock.de/fodb/pub/67037
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Abstract

The decays $$ {\mathrm{B}}_{\mathrm{s}}^0 $$ J/+K+K are studied using a data set corresponding to an integrated luminosity of 9 fb1, collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The decays $$ {\mathrm{B}}_{\mathrm{s}}^0 $$ $$ \mathrm{J}/{\uppsi \mathrm{K}}^{\ast 0}{\overline{\mathrm{K}}}^{\ast 0} $$and $$ {\mathrm{B}}_{\mathrm{s}}^0 $$ c1(3872)K+K, where the K+Kpair does not originate from a meson, are observed for the first time. Precise measurements of the ratios of branching fractions between intermediate c1(3872), $$ \mathrm{J}/{\uppsi \mathrm{K}}^{\ast 0}{\overline{\mathrm{K}}}^{\ast 0} $$, (2S) and c1(3872)K+K states are reported. A structure, denoted as X(4740), is observed in the J/ mass spectrum and, assuming a Breit-Wigner parameterisation, its mass and width are determined to be

Autoren

Aaij, Roel
Archilli, Flavio
Bachmann, Sebastian
Berninghoff, Daniel
Borsato, Martino
Dziewiecki, Michal
Frau, Giulia
Gerick, David
Grabowski, Jascha
Günther, PaulAndré
Han, Xiaoxue
Hansmann-Menzemer, Stephanie
Hu, Jiangqiao
Kopecná, Renata
Leverington, Blake
Li, Peilian
Malygina, Hanna
Marks, Jörg
Piucci, Alessio
Schmelling, Michael
Stemmle, Simon
Unverzagt, Daniel Joachim
Uwer, Ulrich
Wang, Chishuai
Witola, Lukas
Zhelezov, Alexey
Meinert, Nis
Viemann, Harald
Waldi, Roland

Einrichtung

MNF/Institut für Physik (IfPH)