1995/12/03 by Zhi-zhong Xing · 6 citations
Physics and Astronomy · #Asymmetry #CP violation #Generalization #Mixing (physics) #Neutrino Physics Research #Observable #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quark #hep-ph
paper · pdf · doi:10.1016/0370-2693(96)00018-4
published in Physics Letters B 371(3-4), 310-316 (Elsevier BV) · Postscript 10 pages
arxiv created 1995/12/03 · openalex publication_date 1996/03/01 · arxiv updated 2015/06/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
D0-D0 mixing at a detectable level requires the presence of new physics and may lead to some observable effects in weak decays of B mesons. We show that CP violation induced by D0-D0 mixing can manifest itself in the decay-rate asymmetry of B+u→ DL(H)l+ν~l vs B-u→ DL(H)l-ν~l. A rephasing-invariant generalization of the Gronau-Wyler approach is made to determine the weak phase shift in B±u→ DL(H)K±, which is only sensitive to the underlying new physics in D0-D0 mixing. We also demonstrate the possible effect of D0-D0 mixing on CP violation in decay modes of the type Bd→ DL(H)+(π0, ρ0, \rm etc). Finally the model of four quark families is taken as an example to illustrate how the new physics affects D0-D0 mixing, B0d-B0d mixing and CP asymmetries in the relevant B decays.