Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5854
Title: Search for lepton-flavour-violating decays of the Higgs boson
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Higgs boson
Large Hadron Collider (LHC)
Compact Muon Solenoid
Publisher: Elsevier Ltd.
Source: Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M.,...CMS Collaboration (2015). Search for lepton-flavour-violating decays of the Higgs boson. Physics Letters, Section B, 749, 337-362. doi:10.1016/j.physletb.2015.07.053
Abstract: The first direct search for lepton-flavour-violating decays of the recently discovered Higgs boson (H) is described. The search is performed in the H→μτe and H→μτh channels, where τe and τh are tau leptons reconstructed in the electronic and hadronic decay channels, respectively. The data sample used in this search was collected in pp collisions at a centre-of-mass energy of s=8 TeV with the CMS experiment at the CERN LHC and corresponds to an integrated luminosity of 19.7 fb-1. The sensitivity of the search is an order of magnitude better than the existing indirect limits. A slight excess of signal events with a significance of 2.4 standard deviations is observed. The p-value of this excess at MH=125 GeV is 0.010. The best fit branching fraction is B(H→μτ)=(0.84-0.37+0.39)%. A constraint on the branching fraction, B(H→μτ)<1.51% at 95% confidence level is set. This limit is subsequently used to constrain the μ-τ Yukawa couplings to be less than 3.6×10-3. © 2015 CERN for the benefit of the CMS Collaboration.
URI: http://doi.org/10.1016/j.physletb.2015.07.053
http://hdl.handle.net/11147/5854
ISSN: 0370-2693
Appears in Collections:Mathematics / Matematik
Rectorate / Rektörlük
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
5854.pdfMakale1.43 MBAdobe PDFThumbnail
View/Open
Show full item record



CORE Recommender

SCOPUSTM   
Citations

239
checked on Mar 22, 2024

WEB OF SCIENCETM
Citations

214
checked on Mar 27, 2024

Page view(s)

84
checked on Mar 25, 2024

Download(s)

142
checked on Mar 25, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.