id author title date pages extension mime words sentence flesch summary cache txt d791sf28c74 Ayan Paul Charm Beyond the Standard Model 2012 .txt text/plain 463 17 52 These modes are dominated by long distance contributions and for new dynamics to produce any enhancements to the decay rates, the short distance contribution to these modes have to be enhanced by orders of magnitude, a task which is difficult in most new dynamics scenarios. With current results from CDF and LHCb on the asymmetry in D^0vto pi+pi- and D^0 to K+K- the ambiguity regarding whether D physics can or is showing hints of new dynamics has been given a new life. cache/d791sf28c74.txt txt/d791sf28c74.txt