Acta Physica Polonica B
Proceedings Supplement

Vol. 1, No. 2, February 2008, page 257

Forward–Backward Charge Asymmetry in Z Production at the LHC

We present here a study on the determination of the effective weak mixing angle, \sin²\theta ^lept_eff from the measurement of the forward–backward asymmetry with a high a statistical precision, 10^-4. To reach such a precision it is necessary to identify the electrons in the forward regions of the ATLAS detector. It is demonstrated that one can reach an electron-jet rejection of more than 100 with an efficiency on electron reconstruction better than 50\%, by using a multivariate analysis.

PACS numbers: 14.70.Hp