H1prelim-07-066

A search for Excited Neutrinos in e-p collisions at HERA

Reference ThiNguyet Trinh, presented at DIS 2007, Spring 2007
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Abstract #We present a search for excited neutrinos using all e- p data collected by the H1 experiment #at HERA at #center-of-mass energy of 318 GeV with an integrated luminosity of 184 pb-1. #The electroweak decay of excited neutrinos, # n* ® n g, n* ® n Z, #n* ® eW #are considered and possible final states resulting from the Z or W #leptonic and hadronic decays are taken into account. No evidence for excited #neutrino production is found. Mass dependent exclusion limits are determined for #the ratio of the coupling to the compositeness scale, f/L. These #limits #extend the excluded region to higher masses than has been possible in previous #searches.
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