LEP I Physics

The total cross section and forward-backward asymmetry in the e+ e- -> mu+ mu- (n gamma) process are measured in the energy range 60-136 GeV by reconstructing the effective centre-of-mass energy using the 1990 to 1995 data.
Contact authors : Frederic Teubert

The forward-backward asymmetry in the muon pair creation at LEP is studied by a new method which uses two hemispheres separately.
1993 muon analysis is summarized as an ALEPH note ( Fig.1, Fig.2, Fig.3, Fig.4 ).
Contact authors : Imma RIU and Salvador Orteu

A measurement of the tau lepton's lifetime is being done by using a new technique, 3DIP, which uses the full 3D tracking information of the ALEPH detector.
Contact author : Inkyu PARK

A measurement of transverse spin correlation in the tau tau decays at e+ e- collision is studied.
Contact authors : Federico SANCHEZ and Enrique FERNANDEZ

LEP II Physics

A measurement of W mass is being ready for the LEPII run.
Contact persons : Aurelio JUSTE, Lluis GARRIDO, Manel MARTINEZ

WW Physics hompage

Hardware Development

A R&D on BCAL++ construction is being done. BCAL++ is an upgrade version of the current very forward online luminosity monitor, which is known as the BCAL.
Contact person Mokhtar CHMEISSANI

[