Study of Charged{current Ep Interactions at Q 2 > 200 Gev 2 with the Zeus Detector at Hera the Zeus Collaboration
نویسندگان
چکیده
Deep inelastic charged{current reactions have been studied in e + p and e ? p collisions at a center of mass energy of about 300 GeV in the kinematic region Q 2 >200 GeV 2 and x>0:006 using the ZEUS detector at HERA. The integrated cross sections for Q 2 >200 GeV 2 are found to be e + p!X ?3:4 pb. Diierential cross sections have been measured as functions of the variables x, y and Q 2. From the measured diierential cross sections dd=dQ 2 , the W boson mass is determined to be M W = 79 +8 ?7 +4 ?4 GeV. Measured jet rates and transverse energy prooles agree with model predictions. A search for charged{current interactions with a large rapidity gap yielded one candidate event, corresponding to a cross section of e + p!X
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