Search for lepton flavour violating decays of the Higgs boson to eτ and eμ in proton–proton collisions at s=8 TeV
V. Khachatryan , A.M Sirunyan , A. Tumasyan , Adrian Byszuk , Agnieszka Zagoździńska
AbstractA direct search for lepton flavour violating decays of the Higgs boson (H) in the H→eτ and H→eμ channels is described. The data sample used in the search was collected in proton–proton collisions at s=8 TeV with the CMS detector at the LHC and corresponds to an integrated luminosity of 19.7 fb −1 . No evidence is found for lepton flavour violating decays in either final state. Upper limits on the branching fractions, B(H→eτ)<0.69% and B(H→eμ)<0.035% , are set at the 95% confidence level. The constraint set on B(H→eτ) is an order of magnitude more stringent than the existing indirect limits. The limits are used to constrain the corresponding flavour violating Yukawa couplings, absent in the standard model.
|Collective author||CMS Collaboration|
|Total number of authors||2287|
|Journal series||Physics Letters B, ISSN 0370-2693|
|Publication size in sheets||1.4|
|Keywords in English||CMS; Physics; Higgs; Lepton-flavour-violation|
|Score|| = 35.0, 05-04-2017, ArticleFromJournal|
= 40.0, 05-04-2017, ArticleFromJournal
|Publication indicators||: 2016 = 4.807 (2) - 2016=4.327 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.