Search for lepton-flavour-violating decays of Higgs-like bosons

Olivier Schneider, Guido Haefeli, Tatsuya Nakada, Yasmine Sara Amhis, Michel De Cian, Federico Leo Redi, Vladimir Macko, Pietro Marino, Tara Nanut, Violaine Bellée, Pavol Stefko, Alessio Ferrari, Guillaume Max Pietrzyk, Luca Pescatore, Preema Rennee Pais, Guido Andreassi, François Fleuret, Maxime Schubiger, Chitsanu Khurewathanakul, Christoph Frei, Greig Alan Cowan, Vladislav Balagura, Ian William Marison, Jessica Prisciandaro, Mark Tobin, Mirco Dorigo, Sebastiana Gianì, Conor Thomas Fitzpatrick, Arnaud Merlin Gauthey, Matthieu Philippe Luther Marinangeli, Tommaso Colombo, Marco Calvi, Daniel Gallichan, Mai Tu Xuan, Marilisa Neri, Jared Heath Delcamp, Severin Stähly, Michael Thompson McCann, Simon Van Mulders, Vincenzo Battista, Giovanni Veneziano, Matteo Fontana, Benedikt Sebastian Braun, Alexandra Bondarenko, Brice Emile Maurin, Nathalie Sophie Adeline Serra, Léonard Yannick Maurice Eymann, Adriano Pastore, Valérie Jeanne Thérèse Renaudin-Schouler, Luc Henry, Xiao Yuan, Albert Puig Navarro, Laia Castilla Amorós, Craig Matthew Smith, Basile Schäli, Juan Federico Esteban Müller, Nandita Aggarwal, Sattar Akbari Nakhjavani, Gang Yu, Thomas Jean Julien Fussinger
2018
Journal Articles

Abstract

A search is presented for a Higgs-like boson with mass in the range 45 to 195 GeV/c(2) decaying into a muon and a tau lepton. The dataset consists of proton-proton interactions at a centre-of-mass energy of 8 TeV, collected by the LHCb experiment, corresponding to an integrated luminosity of 2 fb -1. The tau leptons are reconstructed in both leptonic and hadronic decay channels. An upper limit on the production cross-sectionmultiplied by the branching fraction at 95% confidence level is set and ranges from 22 pb for a boson mass of 45 GeV/c(2) to 4 pb for a mass of 195 GeV/c(2).

Official source

Search for lepton-flavour-violating decays of Higgs-like bosons

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