2008/01/31 by Chuan-Hung Chen, C. S. Kim, Yeo Woong Yoon
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1016/j.physletb.2008.12.007
published as Phys.Lett.B671:250-255,2009 · Analysis on mixing part is revised
openalex publication_date 2008/12/09 · arxiv created 2008/12/15 · arxiv updated 2009/12/01 · openalex created_date 2017/08/31 · openalex updated_date 2026/07/31
We investigate the implication of unparticle physics on the Bu,d→(π,K)π decays under the constraints of the Bd,s–B¯d,s mixing. We found that not only the unparticle parameters that belong to the flavor changing neutral current (FCNC) processes but also scaling dimension dU could be constrained by the Bd,s–B¯d,s mixing phenomenology. Employing the minimum χ2 analysis to the Bu,d→(π,K)π decays with the constraints of Bd,s mixing, we find that the puzzle of large branching ratio for Bd→π0π0 and the discrepancy between the standard model estimation and data for the direct CP asymmetry of B+→K+π0 and Bd→π+π− can be resolved well. However, the mixing induced CP asymmetry of Bd→KSπ0 could not be well accommodated by the unparticle contributions.