Method for determining the D0-D0 mixing parameters |
| |
Authors: | Sinha Nita Sinha Rahul Browder T E Deshpande N G Pakvasa Sandip |
| |
Institution: | The Institute of Mathematical Sciences, Taramani, Chennai 600113, India. |
| |
Abstract: | We propose a new method to determine the mass and width differences of the two D meson mass eigenstates as well as the CP violating parameters associated with D0-Dover ]0 mixing. We show that an accurate measurement of all the mixing parameters is possible for an arbitrary CP violating phase, by combining observables from a time dependent study of D decays to a doubly Cabibbo suppressed mode with information from a CP eigenstate. As an example we consider D0-->K*0pi0 decays where the K*0 is reconstructed in both K+pi- and K(S)pi0. We also show that decays to the CP eigenstate D-->K+K- together with D-->K+pi- decays can be used to extract all the mixing parameters. There is a fourfold ambiguity in the solutions for x and y in both the cases. A combined analysis using D0-->K*0pi0 and D-->K+K- can also be used to reduce the ambiguity in the determination of parameters. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|