# A fourth generation, anomalous like-sign dimuon charge asymmetry and the LHC - High Energy Physics - Phenomenology

Abstract: A fourth chiral generation, with $m {t^\prime}$ in the range $\sim 300 -500$ GeV and a moderate value of the CP-violating phase can explain theanomalous like-sign dimuon charge asymmetry observed recently by the D0collaboration. The required parameters are found to be consistent withconstraints from other $B$ and $K$ decays. The presence of such quarks, apartfrom being detectable in the early stages of the LHC, would also have importantconsequences in the electroweak symmetry breaking sector.

Author: Debajyoti Choudhury, Dilip Kumar Ghosh

Source: https://arxiv.org/