منابع مشابه
SEARCH FOR EXCITED FERMIONS AT HERA H1 Collaboration
We present a search for excited fermions in e+p scattering at HERA using H1 data with an integrated luminosity of 37 pb 1. All electroweak decays of excited leptons, ` ! ` ; `W; `Z0 are considered. The excited quarks are searched for in the q ! q and qW channels. The analysis considers Z0 and W hadronic decays and first generation leptonic decays. No evidence for new particle production is foun...
متن کاملSearches for excited fermions in ep collisions at HERA ZEUS
Searches in ep collisions for heavy excited fermions have been performed with the ZEUS detector at HERA. Excited states of electrons and quarks have been searched for in ep collisions at a centre-of-mass energy of 300GeV using an integrated luminosity of 47.7 pb. Excited electrons have been sought via the decays e → eγ, e → eZ and e → νW . Excited quarks have been sought via the decays q → qγ a...
متن کاملA Search for Excited Fermions in e + pCollisions at HERAZEUS
Using the ZEUS detector at HERA, we have searched for heavy excited states of electrons, neutrinos, and quarks in e + p collisions at a center-of-mass energy of 300 GeV. With an integrated luminosity of 9.4 pb ?1 , no evidence was found for electroweak production and decay of such states. Limits on the production cross section times branching ratio and on the characteristic couplings, f =, are ...
متن کاملSearch for Rp-violating SUSY and excited fermions at HERA
Recent results from searches for physics beyond the Standard Model (SM) in e-proton collisions at a center of mass energy of 300 – 318 GeV at HERA are presented. Searches for excitations of fermions and for the production of squarks in R-parity-violating Supersymmetry (SUSY) are reviewed.
متن کاملSearch for Excited Fermions in Ep Collisions at Hera *
Heavy excited electrons and neutrinos have been sought by the H1 and ZEUS experiments at HERA. For the e * (ν *) searches, 120 pb −1 (16 pb −1) of ep collision data have been analysed. No evidence for any excited lep-ton has been found, and limits on the characteristic couplings have been derived.
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2008
ISSN: 1742-6596
DOI: 10.1088/1742-6596/110/7/072037