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Determination of Electroweak Parameters at HERA |
| Reference |
Preliminary results expected for DIS2005, Spring 2005 |
| Figures |
(1)
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(4)
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| Contact |
B. Portheault |
| Abstract |
Using the e^+p and e^-p charged and neutral current cross sections
previously measured by the H1 experiment, a combined electroweak and QCD
analysis is performed to determine electroweak parameters accounting
for their correlation with parton distributions.
An improved measurement is obtained of the $W$ propagator mass
in charged current ep scattering. The weak mixing angle sin^2 theta_W
is derived from the W boson mass determination in the on-mass-shell
renormalisation scheme.
A first measurement at HERA is made of the light quark weak couplings to
the Z^0 boson. |
| Links |
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