2005/12/31 by Jianfeng Cheng, Jian-Feng Cheng, Y. Gao +3 · 1 citation
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.2006.04.052
published as Phys.Lett.B637:260-265,2006 · 7 pages, 3 eps files. Add some more explicit analysis version appeared in PLB
openalex publication_date 2006/05/12 · arxiv created 2006/06/02 · arxiv updated 2009/12/01 · openalex created_date 2019/02/21 · openalex updated_date 2026/08/02
We have analyzed the B¯0→π0π0 puzzle in three kinds of models beyond the standard model (SM). It is shown that the minimal flavor violation (MFV) models, the minimal supersymmetric standard model (MSSM), and the two Higgs doublet models (2HDM) I and II cannot give an explanation of the B¯0→π0π0 puzzle within 1σ experimental bounds and the model III 2HDM can explain the puzzle without a conflict with other experimental measurements. If the constraint on C8g from b→sg is not imposed, for all kinds of insertions considered there are regions of parameter space, where the scalar quark mass is larger (much larger) than the gluino mass in the case of LR or RL (LL or RR), in which the puzzle can be resolved within 1σ experimental bounds.