Hints of new physics from D-s(+) -> K+ upsilon(upsilon)over-bar, D-0 -> pi(0) upsilon(upsilon)over-bar and D-s(+) -> D+ upsilon(upsilon)over-bar decays

摘要

We study rare decays D-s(+) -> K+ upsilon(upsilon) over bar, D-s(+) -> D+ upsilon(upsilon) over bar and D-0 -> pi(0) upsilon(upsilon) over bar in NSIs. We calculate the NSIs branching ratios of these decays. There is a strong dependence of these on new physics parameter. They provide stringent constraints on epsilon(uL)(tau tau), epsilon(dL)(tau tau), and epsilon(dL)(alpha beta) (alpha, beta = e, mu).