Search for lepton flavour violation at HERA

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

doi:10.1016/j.physletb.2011.05.023

Search for lepton flavour violation at HERA

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

Physics and Astronomy

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Abstract

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 language	English
Pages (from-to)	20-30
Number of pages	11
Journal	Physics Letters B
Volume	B701
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2011.05.023
Publication status	Published - 1 Jun 2011

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10.1016/j.physletb.2011.05.023

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title = "Search for lepton flavour violation at HERA",

abstract = "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.",

author = "FD Aaron and Juraj Bracinik and Ian Kenyon and Paul Newman and Paul Thompson",

year = "2011",

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doi = "10.1016/j.physletb.2011.05.023",

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T1 - Search for lepton flavour violation at HERA

AU - Aaron, FD

AU - Bracinik, Juraj

AU - Kenyon, Ian

AU - Newman, Paul

AU - Thompson, Paul

PY - 2011/6/1

Y1 - 2011/6/1

N2 - 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.

AB - 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.

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DO - 10.1016/j.physletb.2011.05.023

M3 - Article

VL - B701

SP - 20

EP - 30

JO - Physics Letters B

JF - Physics Letters B

IS - 1

ER -

Search for lepton flavour violation at HERA

Abstract

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