Erratum:b→stransitions: A new frontier for indirect supersymmetry searches [Phys. Rev. D67, 075016 (2003)]
Physical Review D, Particles and fields
The present unitarity triangle fit, whose essential input is represented by the s → d and b → d transition processes, fully agrees with the SM. However, most of the phenomena involving b → s transitions are still largely unexplored and hence b → s phenomenology still constitutes a place for new physics manifestations, in spite of the tremendous experimental and theoretical progress on B → X s γ. We perform a systematic study of the CP conserving and violating SUSY contributions to b → s
... s in a generic MSSM. We consider gluino exchange contributions including NLO QCD corrections and lattice hadronic matrix elements for ∆B = 2 and ∆B = 1 processes. We take into account all available experimental information on processes involving b → s transitions (B → X s γ, B → X s + − and the lower bound on the B s −B s mass difference ∆M s ). We study the correlations among the relevant observables under scrutiny at present or in a not too far future: ∆M s and the amount of CP violation in B → φK s , B s → J/ψφ, B → X s γ. In particular we discuss the recent data by BaBar and BELLE on the time-dependent CP asymmetry in the decay B → φK s which suggest a deviation from the SM expectation. Our results show that the processes involving b → s transitions represent a splendid opportunity to constrain different MSSM realizations, and, even more important, that they offer concrete prospects to exhibit SUSY signals at B factories and hadron colliders in spite of all the past frustration in FCNC searches of new physics hints.