2014/10/02 by Xiao-Gang He, Guannan Li, He, Xiao-Gang +3 · 1 citation
Engineering · Medicine · Physics and Astronomy · #Advanced MRI Techniques and Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Magnetic confinement fusion research #Superconducting Materials and Applications
paper · pdf · doi:10.48550/arxiv.1410.0476
openalex publication_date 2014/10/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Several modes of B decays into three pseudoscalar octet mesons PPP have been measured. These decays have provided useful information for B decays in the standard model (SM). Some of powerful tools in analyzing B decays are flavor SU(3) and isospin symmetries. Such analyses are usually hampered by SU(3) breaking effects due to a relatively large strange quark mass which breaks SU(3) symmetry down to isospin symmetry. The isospin symmetry also breaks down when up and down quark mass difference is non-zero. It is therefore interesting to find relations which are not sensitive to SU(3) and isospin breaking effects. We find that the relations among several fully-symmetric B → PPP decay amplitudes are not affected by first order SU(3) breaking effects due to a non-zero strange quark mass, and also some of them are not affected by first isospin breaking effects. These relations, therefore, hold to good precisions. Measurements for these relations can provide important information about B decays in the SM.