15–18 Apr 2013
Portoroz, Slovenia
Europe/Ljubljana timezone

Reconciliation of Tevatron A_fb and LHC A_C with s-channel and t-channel NP

16 Apr 2013, 16:55
22m
James Cook (Portoroz, Slovenia)

James Cook

Portoroz, Slovenia

Hotel Slovenija, Obala 33, 6320 Portoroz, Slovenia

Speaker

Jure Drobnak (TUM, IJS)

Description

Since the measured value of A_C at LHC seems to be compatible with the SM predicted value, many considered explanations of the anomalous A_FB measured at Tevatron fail to appropriately accommodate the experimental A_C value. In the talk I will present two distinct ways of reconciling the two measurements using new physics in t-tbar production. One includes an axi-gluon exchange in the s-channel with somewhat peculiar couplings to SM quarks while the other is presented on the basis of a simple Z-prime model with u-t couplings. The later idea is based on associated production of the Z-prime further decaying in a top and u quark and exploiting the fact that the measurements of the asymmetries are inclusive.

Author

Jure Drobnak (TUM, IJS)

Presentation materials