Multi-leptons with high transverse momentum at HERA

F.D. Aaron; P. Kooijman

Multi-leptons with high transverse momentum at HERA

F.D. Aaron
, P. Kooijman

Subatomic Physics

extern

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Abstract: Events with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA with an integrated lumi- nosity of 0.94 fb−1. The observed numbers of events are in general agreement with the Standard Model predictions. Seven di- and tri-lepton events are observed in e+p collision data with a scalar sum of the lepton transverse momenta above 100GeV while 1.94 ± 0.17 events are expected. Such events are not observed in e−p collisions for which 1.19 ± 0.12 are predicted. Total visible and differential di-electron and di-muon photoproduction cross sections are extracted in a restricted phase space dominated by photon-photon collisions.

Original language	Undefined/Unknown
Pages (from-to)	013/1-013/10
Number of pages	10
Journal	Journal of High Energy Physics
Volume	10
Publication status	Published - 2009

Bibliographical note

The H1 and ZEUS collaborations (ca. 200 auteurs)

Cite this

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title = "Multi-leptons with high transverse momentum at HERA",

abstract = "Abstract: Events with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA with an integrated lumi- nosity of 0.94 fb−1. The observed numbers of events are in general agreement with the Standard Model predictions. Seven di- and tri-lepton events are observed in e+p collision data with a scalar sum of the lepton transverse momenta above 100GeV while 1.94 ± 0.17 events are expected. Such events are not observed in e−p collisions for which 1.19 ± 0.12 are predicted. Total visible and differential di-electron and di-muon photoproduction cross sections are extracted in a restricted phase space dominated by photon-photon collisions.",

author = "F.D. Aaron and P. Kooijman",

note = "The H1 and ZEUS collaborations (ca. 200 auteurs)",

year = "2009",

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journal = "Journal of High Energy Physics",

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T1 - Multi-leptons with high transverse momentum at HERA

AU - Aaron, F.D.

AU - Kooijman, P.

N1 - The H1 and ZEUS collaborations (ca. 200 auteurs)

PY - 2009

Y1 - 2009

N2 - Abstract: Events with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA with an integrated lumi- nosity of 0.94 fb−1. The observed numbers of events are in general agreement with the Standard Model predictions. Seven di- and tri-lepton events are observed in e+p collision data with a scalar sum of the lepton transverse momenta above 100GeV while 1.94 ± 0.17 events are expected. Such events are not observed in e−p collisions for which 1.19 ± 0.12 are predicted. Total visible and differential di-electron and di-muon photoproduction cross sections are extracted in a restricted phase space dominated by photon-photon collisions.

AB - Abstract: Events with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA with an integrated lumi- nosity of 0.94 fb−1. The observed numbers of events are in general agreement with the Standard Model predictions. Seven di- and tri-lepton events are observed in e+p collision data with a scalar sum of the lepton transverse momenta above 100GeV while 1.94 ± 0.17 events are expected. Such events are not observed in e−p collisions for which 1.19 ± 0.12 are predicted. Total visible and differential di-electron and di-muon photoproduction cross sections are extracted in a restricted phase space dominated by photon-photon collisions.

M3 - Article

SN - 1126-6708

VL - 10

SP - 013/1-013/10

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

ER -