arXiv subjects

Christian Rosenbleck

Publications and source records attributed to Christian Rosenbleck.

2 recordsLinked to original sources

arXiv2005

Measurement of the W mass at LEP and recent Results of the Electroweak Fit

The measurement of the mass of the W boson, m_W, by direct reconstruction is described. The combination of all measurements of the four LEP experiments yields m_W = 80.412 +- 0.042 GeV. Together with several other measurements the extracted m_W value enters the electroweak fit, which tests the Standard Model (SM) predictions and extracts SM parameters which have not yet been measured. The latest results of the fit are presented.

hep-ex↗

arXiv2003

Determination of the LEP Beam Energy using Z Recoil Events

The precise knowledge of the beam energy, E_beam, at the LEP collider is important to reduce the systematic uncertainty on the W mass. The measurements by the LEP energy group can be cross checked using Z recoil events. Preliminary results of the four LEP experiments ALEPH, DELPHI, L3, and OPAL are presented. The combination of the results shows no significant deviation of the E_beam value obtained using Z recoil events from the measurement by the LEP energy group.

hep-ex↗