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50 papers · 2 filters
Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models?
P. M. Ferreira, Rui Santos, Marc Sher +1
LHC has reported tantalizing hints for a Higgs boson of mass 125 GeV decaying into two photons. We focus on two-Higgs-doublet Models, and study the interesting possibility that the…
Excited charmonium states from Bethe-Salpeter equation
Vladimir Sauli, Pedro Bicudo
We solve the Bethe-Salpeter equation for a system of a heavy quark-antiquark pair interacting with a screened linear confining potential. First we show the spinless QFT model is in…
BFKL Pomeron calculus: nucleus-nucleus scattering
Carlos Contreras, Eugene Levin, Jeremy S. Miller
In this paper the action of the BFKL Pomeron calculus is re-written in momentum representation, and the equations of motion for nucleus-nucleus collisions are derived, in this repr…
Implications of the LHC two-photon signal for two-Higgs-doublet models
P. M. Ferreira, Rui Santos, Marc Sher +1
We study the implications for Two Higgs Doublet Models of the recent announcement at the LHC giving a tantalizing hint for a Higgs boson of mass 125 GeV decaying into two photons.…
Invariants, Alignment and the Pattern of Fermion Masses and Mixing
G. C. Branco, J. I. Silva-Marcos
We show that the main features of the pattern of fermion masses and mixing can be expressed in terms of simple relations among weak-basis invariants. In the quark sector, we identi…
Towards Meson Spectroscopy Instead of Bump Hunting
George Rupp, Susana Coito, Eef van Beveren
Mesonic resonances are generally observed in data as narrow, moderately broad, or wide peaks in scattering or production processes. In the eyes of nearly all experimentalists, any…