Multi-lepton production at high transverse momentum at HERA - INSPIRE

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Multi-lepton production at high transverse momentum at HERA

ZEUS

Collaboration

Jun, 2009

18 pages

Published in:

Phys.Lett.B 680 (2009) 13-23

e-Print:

0906.1504 [hep-ex]

DOI:

10.1016/j.physletb.2009.08.026

Report number:

DESY-09-072

Experiments:

DESY-HERA-ZEUS

View in:

ADS Abstract Service

reference search10 citations

Citations per year

Abstract: (Elsevier)

A search for events containing two or more high-transverse-momentum isolated leptons has been performed in ep collisions with the ZEUS detector at HERA using the full collected data sample, corresponding to an integrated luminosity of 480 pb −1 . The number of observed events has been compared with the prediction from the Standard Model, searching for possible deviations, especially for multi-lepton events with invariant mass larger than 100 GeV. Good agreement with the Standard Model has been observed. Total and differential cross sections for di-lepton production have been measured in a restricted phase space dominated by photon–photon collisions.

Note:

18 pages, 5 figures, to be submitted to Phys. Lett. B

electron p: interaction
DESY HERA Stor
differential cross section: mass
transverse momentum dependence
photon photon: interaction
phase space
lepton: multiple production
ZEUS: experimental results
electroweak interaction: standard model
mass spectrum: dilepton

References(19)

Figures(0)

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