Speaker
Amarjit Soni
(BNL)
Description
LHCb experiment over a year ago, opened up a new avenue to investigate the phenomena of CP violation via their first observation of direct CP asymmetry in $D^0 \to \pi^+ \pi ^-$ and to $K^+ K^-$.
This observation, though, presents a serious new challenge for theorists, as reliable, quantitative
calculations for D decays to hadronic final states are extremely difficult since the charm mass is neither
light enough for ChPT or heavy enough for heavy quark effective theory to work.
Bearing those difficulties in mind, CP violation in charm decays is further studied in light of more recent experimental results and also incorporating new theoretical developments, in particular from improved understanding from the lattice for the origin of the Delta I=1/2 enhancement. Decisive tests for distinguishing new physics contribution from the SM will be emphasized. The talk will be based primarily on three recent papers, arXiv:1202.3795; arXiv:1211.1026 and arXiv:1212.1474.
Author
Amarjit Soni
(BNL)
