2000/08/01 by Galit Eyal, Yosef Nir, Gilad Perez · 43 citations
Medicine · Physics and Astronomy · #Asymmetry #Cardiovascular Function and Risk Factors #Medical Imaging Techniques and Applications #Particle physics #Particle physics theoretical and experimental studies #Physics #hep-ph
paper · pdf · doi:10.1088/1126-6708/2000/08/028
published in Journal of High Energy Physics 2000(08), 028 (Springer Nature) · 14 pages
arxiv created 2000/08/01 · openalex publication_date 2000/08/23 · arxiv updated 2011/03/23 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/05
New measurements of the CP asymmetry in B->ψKS, aψKS, by the BABAR and BELLE collaborations are consistent with the Standard Model prediction for sin2β. These measurements, however, leave open the possibility that aψKS is well below the Standard Model prediction. We identify deviations from the `reasonable ranges' of hadronic parameters that can lead to low values of sin2β. New physics, mainly in B0-\barB0 mixing and/or K0-\barK0 mixing, can explain low values of aψKS in two ways: either by allowing for values of sin2βbelow the Standard Model prediction or by modifying the relation between aψKS and sin2β.