Search for lepton-flavor violating decays of the Higgs boson in the μτ and eτ final states in proton-proton collisions at s =13 TeV Albert M. Sirunyan , Armen Tumasyan , Wolfgang Adam , Janik Walter Andrejkovic , Thomas Bergauer , S. Chatterjee , Marko Dragicevic , A. Escalante Del Valle , R. Frühwirth , Manfred Jeitler , Natascha Krammer , Lukas Lechner , Dietrich Liko , Ivan Mikulec , P. Paulitsch , F. M. Pitters , Jochen Schieck , Robert Schöfbeck , Markus Spanring , Sebastian Templ , Wolfgang Waltenberger , C-E Wulz , Vladimir Chekhovsky , Aliaksandr Litomin , V. Makarenko , Mohamed Rashad Darwish , E. A. De Wolf , Xavier Janssen , Tomas Kello , Aleksandra Lelek , H. Rejeb Sfar , P. Van Mechelen , S. Van Putte , N. Van Remortel , Freya Blekman , Emil Sørensen Bols , Jorgen D'Hondt , J. De Clercq , Martin Delcourt , H. El Faham , Steven Lowette , Seth Moortgat , Alexander Morton , D. R. Muller , Abanti Ranadhir Sahasransu , Stefaan Tavernier , W. Van Doninck , P. Van Mulders , Diego Beghin , Bugra Bilin , Barbara Clerbaux , G. De Lentdecker , Laurent Favart , Anastasia Grebenyuk , Amandeep Kaur Kalsi , Kyeongpil Lee , Mostafa Mahdavikhorrami , Inna Makarenko , Louis Moureaux , Laurent Pétré , Andrey Popov , Nicolas Postiau , Elizabeth Starling , Laurent Thomas , M. Vanden Bemden , C. Vander Velde , Pascal Vanlaer , David Vannerom , Liam Wezenbeek , Tom Cornelis , Didar Dobur , Joscha Knolle , Luka Lambrecht , Gianny Mestdach , Marek Niedziela , Christos Roskas , A. Samalan , Kirill Skovpen , T. T. Tran , Michael Tytgat , Willem Verbeke , Basile Vermassen , Martina Vit , A. Bethani , Giacomo Bruno , Florian Joel J Bury , Claudio Caputo , Pieter David , Christophe Delaere , Izzeddin Suat Donertas , Andrea Giammanco , Khawla Jaffel , Vincent Lemaitre , Kuntal Mondal , Jessica Prisciandaro , Angela Taliercio , M. Teklishyn , Pietro Vischia , Sébastien Wertz , Sophie Wuyckens Physical Review D（2021）
摘要
A search is presented for lepton-flavor violating decays of the Higgs boson to μ τ and e τ . The dataset corresponds to an integrated luminosity of 137 fb - 1 collected at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. No significant excess has been found, and the results are interpreted in terms of upper limits on lepton-flavor violating branching fractions of the Higgs boson. The observed (expected) upper limits on the branching fractions are, respectively, B ( H → μ τ ) 0.15 ( 0.15 ) % and B ( H → e τ ) 0.22 ( 0.16 ) % at 95% confidence level.
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