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A Search for resonance decays to lepton + jet at HERA and limits on leptoquarks
- Publication Year :
- 2003
- Publisher :
- Deutsches Elektronen-Synchrotron, DESY, Hamburg, 2003.
-
Abstract
- Physical review / D 68(5), 052004 (2003). doi:10.1103/PhysRevD.68.052004<br />A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed with the ZEUS detector at HERA operating at center-of-mass energies of 300 and 318 GeV. An integrated e+p luminosity of 114.8 pb-1 and e-p luminosity of 16.7 pb-1 were used. No evidence for any resonance was found. Limits were derived on the Yukawa coupling as a function of the mass of a hypothetical resonance that has arbitrary decay branching ratios into electron+quark or neutrino+quark. These limits also apply to squarks predicted by R-parity-violating supersymmetry. Limits for the production of leptoquarks described by the Buchmuller-Ruckl-Wyler model were also derived for masses up to 400 GeV. For Yukawa coupling of 0.1, leptoquark masses up to 290 GeV are excluded.<br />Published by Inst., Woodbury, NY
- Subjects :
- R parity: violation
leptoquark: mass
lower limit
ZEUS
positron p: colliding beams
squark
DESY HERA Stor
electron p --> jet electron anything
electron p: colliding beams
narrow resonance: search for
supersymmetry
300: 318 GeV-cms
final state: (jet lepton)
coupling: Yukawa
electron p --> jet neutrino anything
experimental results
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........60eb10cfa5a04be3d2723d3a4b1a12a7
- Full Text :
- https://doi.org/10.3204/pubdb-2017-11173