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6 papers · 2 filters
Neutrinos in a left-right model with a horizontal symmetry
Ken Kiers, Michael Assis, David Simons +2
We analyze the lepton sector of a Left-Right Model based on the gauge group SU(2)_L x SU(2)_R x U(1), concentrating mainly on neutrino properties. Using the seesaw mechanism and a…
Implications of a new particle from the HyperCP data on Σ^+ \to p μ^+ μ^-
Xiao-Gang He, Jusak Tandean, German Valencia
The HyperCP collaboration has recently reported the observation of three events for the decay Σ^+ \to p mu^+ mu^- with an invariant mass m_{μ^+μ^-} for a muon and an anti-muon pair…
X(3872): Hadronic Molecules in Effective Field Theory
Mohammad T. AlFiky, Fabrizio Gabbiani, Alexey A. Petrov
We consider the implications from the possibility that the recently observed state X(3872) is a meson-antimeson molecule. We write an effective Lagrangian consistent with the heavy…
Short Distance Analysis of D^0-anti-D^0 Mixing
Eugene Golowich, Alexey A. Petrov
We study the Standard Model short-distance prediction for the mass and lifetime differences between the two neutral D meson mass eigenstates. We find that, despite α_s/4πsuppressio…
The Decay Sigma^+ -> p l^+ l^- within the Standard Model
Xiao-Gang He, Jusak Tandean, G. Valencia
The HyperCP collaboration has recently reported the observation of three events for the decay Sigma^+ -> p mu^+ mu^-. They have suggested that new physics may be required to unders…
Higgs Sector of the Left-Right Model with Explicit CP Violation
Ken Kiers, Michael Assis, Alexey A. Petrov
We explore the Higgs sector of the Minimal Left-Right (LR) Model based on the gauge group SU(2)_L x SU(2)_R x U(1)_{B-L} with explicit CP violation in the Higgs potential. Since fl…