A Search for leptoquark bosons in e- p collisions at HERA

Collaboration
Jun, 2001
10 pages
Published in:
  • Phys.Lett.B 523 (2001) 234-242
e-Print:
Report number:
  • DESY-01-094
Experiments:

Citations per year

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Abstract: (Elsevier)
A search for scalar and vector leptoquarks coupling to first generation fermions is performed in the H1 experiment at the ep collider HERA. The analysis uses e − p data collected in 1998 and 1999 at a centre-of-mass energy of 320 GeV, corresponding to an integrated luminosity of ∼15 pb −1 . No evidence for the direct production of such particles is found in a data sample with a large transverse momentum final state electron or with large missing transverse momentum, and constraints on leptoquark models are established. For a Yukawa coupling of electromagnetic strength leptoquarks are excluded for masses up to ∼290 GeV. This analysis complements the leptoquark searches performed previously using data collected whilst HERA was operating with positrons instead of electrons.
Note:
  • 10 pages, 4 figures Report-no: DESY 01-094
  • electron p: colliding beams
  • electron p: deep inelastic scattering
  • charged current
  • neutral current
  • leptoquark: search for
  • leptoquark: scalar
  • leptoquark: vector
  • mass spectrum
  • electron: final state
  • transverse momentum: high