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25 papers · 2 filters
Dark Radiation and Decaying Matter
M. C. Gonzalez-Garcia, V. Niro, Jordi Salvado
Recent cosmological measurements favour additional relativistic energy density beyond the one provided by the three active neutrinos and photons of the Standard Model (SM). This is…
Longitudinal WW scattering in light of the "Higgs" discovery
Domènec Espriu, Brian Yencho
WW scattering is dominated at high energies by their longitudinal components, which are the most sensitive to the nature of the electroweak symmetry breaking. Prior to the discover…
New picture of jet quenching dictated by color coherence
Jorge Casalderrey-Solana, Yacine Mehtar-Tani, Carlos A. Salgado +1
We propose a new description of the jet quenching phenomenon observed in nuclear collisions at high energies in which coherent parton branching plays a central role. This picture i…
Robust Determination of the Higgs Couplings: Power to the Data
Tyler Corbett, O. J. P. Eboli, J. Gonzalez-Fraile +1
We study the indirect effects of new physics on the phenomenology of the recently discovered "Higgs-like" particle. In a model independent framework these effects can be parametriz…
Delta r in the Two-Higgs-Doublet Model at full one loop level -- and beyond
David Lopez-Val, Joan Sola
After the recent discovery of a Higgs-like boson particle at the CERN LHC-collider, it becomes more necessary than ever to prepare ourselves for identifying its standard or non-sta…
An effective QCD Lagrangian in the presence of an axial chemical potential
Alexander A. Andrianov, Domenec Espriu, Xumeu Planells
We consider the low energy realization of QCD in terms of mesons when an axial chemical potential is present; a situation that may be relevant in heavy ion collisions. We shall dem…