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

Abstract

A 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 authorCMS Collaboration
Author V. Khachatryan
V. Khachatryan,,
-
, A.M Sirunyan
A.M Sirunyan,,
-
, A. Tumasyan
A. Tumasyan,,
-
, Adrian Byszuk ISE
Adrian Byszuk,,
- The Institute of Electronic Systems
, Agnieszka Zagoździńska ISE
Agnieszka Zagoździńska,,
- The Institute of Electronic Systems
Total number of authors2287
Journal seriesPhysics Letters B, ISSN 0370-2693
Issue year2016
Vol763
Pages472-500
Publication size in sheets1.4
Keywords in EnglishCMS; Physics; Higgs; Lepton-flavour-violation
DOIDOI:10.1016/j.physletb.2016.09.062
URL http://ac.els-cdn.com/S0370269316305706/1-s2.0-S0370269316305706-main.pdf?_tid=f8498fec-1a43-11e7-8143-00000aab0f6b&acdnat=1491426668_d2ee7712be2487a0af84503d5190e1c3
Languageen angielski
Score (nominal)40
ScoreMinisterial score [Punktacja MNiSW] = 35.0, 05-04-2017, ArticleFromJournal
Ministerial score (2013-2016) [Punktacja MNiSW (2013-2016)] = 40.0, 05-04-2017, ArticleFromJournal
Publication indicators WoS Impact Factor [Impact Factor WoS]: 2016 = 4.807 (2) - 2016=4.327 (5)
Citation count*0
Cite
Share Share

Get link to the record
msginfo.png


* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
Back