HIGH Q2 NEUTRAL AND CHARGED CURRENT CROSS SECTIONS IN e+p COLLISIONS AT HERA
نویسنده
چکیده
The ZEUS experiment at HERA has collected 46:6pb ?1 of e + p data during 1994 to 1997. This amount is more than twice that of data used in our previous analysis reporting an excess of high Q 2 and high x neutral current(NC) events. We have measured Born level cross sections as a function of Q 2 both for neutral and charged current(CC) deep inelastic scattering reactions using all data up to 1997. Measured NC cross section is in good agreement with Standard Model prediction up to Q 2 ' 35000GeV 2. As for CC, a good agreement of the cross section is observed up to Q 2 ' 10000GeV 2 .
منابع مشابه
Measurement of High-Q2 Charged and Neutral Current Deep Inelastic ep Scattering Cross Sections with a Longitudinally Polarised Positron Beam at HERA
the mass of a hypothetical right-handed W boson.The single differential NC (CC) cross sections dσ/dQ2, dσ/dx and dσ/dy are presented for Q2 > 185 GeV2 (Q2 > 200 GeV2). The reduced NC (CC) cross sections σ̃ are presented. The structure function xF̃3 is determined by combining the e+p NC reduced cross sections with the previously measured e−p [2] measurements. Reduced cross sections from a high-Q2 ...
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