TY - JOUR
T1 - b → s transitions in family-dependent U(1)' models
AU - Barger, Large Vernon
AU - Everett, Lisa L.
AU - Jiang, Jing
AU - Langacker, Paul
AU - Liu, Tao
AU - Wagner, Carlos E.M.
PY - 2009
Y1 - 2009
N2 - We analyze flavor-changing-neutral-current (FCNC) effects in the b s transitions that are induced by family non-universal U(1)′ gauge symmetries. After systematically developing the necessary formalism, we present a correlated analysis for the ΔB = 1,2 processes. We adopt a model-independent approach in which we only require family-universal charges for the first and second generations and small fermion mixing angles. We analyze the constraints on the resulting parameter space from Bs-s mixing and the time-dependent CP asymmetries of the penguin-dominated B d (π,φ,η′,ρ,ω,f0)KS decays. Our results indicate that the currently observed discrepancies in some of these modes with respect to the Standard Model predictions can be consistently accommodated within this general class of models.
AB - We analyze flavor-changing-neutral-current (FCNC) effects in the b s transitions that are induced by family non-universal U(1)′ gauge symmetries. After systematically developing the necessary formalism, we present a correlated analysis for the ΔB = 1,2 processes. We adopt a model-independent approach in which we only require family-universal charges for the first and second generations and small fermion mixing angles. We analyze the constraints on the resulting parameter space from Bs-s mixing and the time-dependent CP asymmetries of the penguin-dominated B d (π,φ,η′,ρ,ω,f0)KS decays. Our results indicate that the currently observed discrepancies in some of these modes with respect to the Standard Model predictions can be consistently accommodated within this general class of models.
KW - B-Physics
KW - Beyond Standard Model
KW - CP violation
UR - http://www.scopus.com/inward/record.url?scp=76149133134&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=76149133134&partnerID=8YFLogxK
U2 - 10.1088/1126-6708/2009/12/048
DO - 10.1088/1126-6708/2009/12/048
M3 - Article
AN - SCOPUS:76149133134
VL - 2009
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1126-6708
IS - 12
M1 - 048
ER -