Flavor-changing neutral currents in the minimal 3-3-1 model revisited
نویسندگان
چکیده
منابع مشابه
Flavor Changing Neutral Currents
A study of Rb and Rc is presented in the context of a Two Higgs Doublet Model (2HDM) with flavor changing scalar currents (FCSC). Implications of the model for the ρ-parameter and for b → sγ are also considered. The experimental data on Rb places stringent constraints on the model parameters. The configuration of the model needed to account for Rb is found to be irreconcilable with constraints ...
متن کاملNeutrino Masses, Lepton Flavor Violations, and Flavor Changing Neutral Currents in Composite Little Higgs Model
Little higgs theories attribute light higgs to being one of a set of pseudo Nambu Goldstone bosons. This implies that the UV cutoff of the little higgs models should be around 10 TeV, and a new physics resides above the UV cutoff. The composite little higgs model, a candidate for UV physics of the littlest higgs model, incorporates supersymmetry into strong gauge dynamics. We find that this con...
متن کاملFlavor Changing Neutral Currents and the Third Family
We consider a Two Higgs Doublet Model with Flavor Changing Scalar Neutral Currents arising at the tree level. All the most important constraints are taken into account and the compatibility with the present Electroweak measurements is examined. The Flavor Changing couplings involving the third family are not constrained to be very small and this allows us to predict some interesting signals of ...
متن کاملSUSY Higgs boson flavor-changing neutral currents at the LHC
UAB-FT-597, UB-ECM-PF-06/03, hep-ph/0601191 We compute and analyze the Flavor-Changing Neutral Current (FCNC) interactions of Minimal Supersymmetric Standard Model Higgs bosons (h ≡ h, H, A) with heavy quarks (top and bottom), focusing on the strongly-interacting sector. We correlate the Higgs bosons production cross-section at the LHC with the FCNC decay branching ratios and find the maximum a...
متن کاملThe Z → bb decay asymmetry and flavor changing neutral currents
The measured value of Ab, the Zbb asymmetry parameter, disagrees with the Standard Model at 99% confidence level. If genuine the discrepancy could indicate new interactions unique to third generation quarks, implying enhanced Z penguin amplitudes. Enhanced rates are predicted for rare K and B decays, such as K → πνν, KL → π νν, B → Xsνν, and Bs → μμ. Measurements of ǫ /ǫ then imply QCD penguin ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2013
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.88.113002