C. Adloff et al., Measurement of neutral and charged current cross sections electron-proton collisions at high Q(2), EUR PHY J C, 19(2), 2001, pp. 269-288
The inclusive e(-)p single and double differential cross sections for neutr
al and charged current processes are measured with the H1 detector at HERA,
in the range of four-momentum transfer squared Q(2) between 150 and 30 000
GeV2, and Bjorken x between 0.002 and 0.65. The data were taken in 1998 an
d 1999 with a centre-of-mass energy of 320 GeV and correspond to an integra
ted luminosity of 16.4 pb(-1) The data are compared with recent measurement
s of the inclusive neutral and charged current e(+)p cross sections. For Q(
2) > 1000 GeV2 clear evidence is observed for an asymmetry between e(+)p an
d e(-)p neutral current scattering and the generalised structure functions
x (F) over tilde (3) is extracted for the first time at HERA. A fit to the
charged current data is used to extract a value for the W boson propagator
mass. The data are found to be in good agreement with Standard Model predic
tions.