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T: Fachverband Teilchenphysik
T 30: Elektroschwache Physik
T 30.6: Talk
Thursday, March 1, 2012, 18:00–18:15, ZHG 105
Perspectives of tau polarization measurements at the LHC — •Vladimir Cherepanov, Guenter Fluegge, Bastian Kargoll, Ian M. Nugent, Lars Perchalla, Philip Sauerland, and Achim Stahl — III. Physikalisches Institut B, RWTH Aachen
A first measurements of the τ-lepton polarization and its forward-backward (ApolFB) asymmetry at the Z0 resonance was performed at LEP. Today, the LHC with 105 Z→ττ decays recorded, opens the wide opportunities for testing eletroweak Standart Model with τ-leptons and measuring τ-lepton polarization and its asymmetry. The special chalenges at the LHC are the huge QCD background and the unknown τ-lepton energy. The studies on τ-lepton polarization at the LHC using Z→τµτ3π final state are presented.