Search for lepton flavour violation at HERA

FD Aaron, Juraj Bracinik, Ian Kenyon, Paul Newman, Paul Thompson

Research output: Contribution to journalArticle

12 Citations (Scopus)


A search for second and third generation scalar and vector leptoquarks produced in ep collisions via the lepton flavour violating processes ep -> mu X and ep -> tau X is performed by the H1 experiment at HERA. The full data sample taken at a centre-of-mass energy root s = 319 GeV is used for the analysis, corresponding to an integrated luminosity of 245 pb(-1) of e(+)p and 166 pb(-1) of e(-)p collision data. No evidence for the production of such leptoquarks is observed in the H1 data. Leptoquarks produced in e(+/-)p collisions with a coupling strength of lambda = 0.3 and decaying with the same coupling strength to a muon-quark pair or a tau-quark pair are excluded at 95% confidence level up to leptoquark masses of 712 GeV and 479 GeV, respectively. (C) 2011 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)20-30
Number of pages11
JournalPhysics Letters B
Issue number1
Publication statusPublished - 1 Jun 2011


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