Publikation: Zeitschriftenartikel

Search for the lepton-flavour violating decays B0(s)e± [mu][minus-plus]

Grunddaten
Abstract
Autoren
Einrichtung

Grunddaten

Titel	Search for the lepton-flavour violating decays B0(s)e± [mu][minus-plus]
Erscheinungsjahr	2018
Heft-Nr.	3
Jahr	2018
Publikationsform	Elektronische Ressource
Publikationsart	Zeitschriftenartikel
Sprache	Englisch
DOI	10.1007/JHEP03(2018)078
Letzte Änderung	30.01.2021 06:05:48
Bearbeitungsstatus	durch UB Rostock abschließend validiert
Dauerhafte URL	http://purl.uni-rostock.de/fodb/pub/64953
Links zu Katalogen

Abstract

A search for the lepton-flavour violating decays B s 0 e± and B0 e± is performed based on a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb1, collected with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yields are consistent with the background-only hypothesis. Upper limits on the branching fraction of the B s 0 e± decays are evaluated both in the hypotheses of an amplitude completely dominated by the heavy eigenstate and by the light eigenstate. The results are @@B(B0se±)<6.3(5.4)×109@@B(Bs0e±)<6.3(5.4)×109 \frac{@}{@}\mathrm{\mathcal{B}}\left({B}_s^0\to {e}^{\pm }{\mu}^{\mp}\right)<6.3(5.4)\times 1{0}^{-9} and @@B(B0se±)<7.2(6.0)×109@@B(Bs0e±)<7.2(6.0)×109 \frac{@}{@}\mathrm{\mathcal{B}}\left({B}_s^0\to {e}^{\pm }{\mu}^{\mp}\right)<7.2(6.0)\times 1{0}^{-9} at 95% (90%) confidence level, respectively. The upper limit on the branching fraction of the B0 e± decay is also evaluated, obtaining @@B(B0e±)<1.3(1.0)×109@@B(B0e±)<1.3(1.0)×109 \frac{@}{@}\mathrm{\mathcal{B}}\left({B}^0\to {e}^{\pm }{\mu}^{\mp}\right)<1.3(1.0)\times 1{0}^{-9} at 95% (90%) confidence level. These are the strongest limits on these decays to date. Open image in new window

Autoren

Aaij, Roel
D'Argent, Philippe
Bachmann, Sebastian
Berninghoff, Daniel
Braun, Svende
De Cian, Michel
Comerma-Montells, Albert
Dziewiecki, Michal
Esen, Sevda
Gerick, David
Grabowski, Jascha
Grünberg, Oliver
Han, Xiaoxue
Hansmann-Menzemer, Stephanie
Heß, Miriam
Kecke, Matthieu
Khanji, Basem
Kolpin, Michael
Kopecná, Renata
Leverington, Blake
Marks, Jörg
Mitzel, Dominik
Meinert, Nis
Neubert, Sebastian
Neuner, Max
Piucci, Alessio
Stahl, Marian
Stemmle, Simon
van Tilburg, Jeroen
Uwer, Ulrich
Viemann, Harald
Waldi, Roland
Zhelezov, Alexey

Einrichtung

MNF/Institut für Physik (IfPH)