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6 papers · 2 filters
Effects of light scalar mesons in decay
Abdou M. Abdel-Rehim, Deirdre Black, Amir H. Fariborz +1
We study the role of a possible nonet of light scalar mesons in the still interesting decay process, with the primary motivation of learning more about the scalars themse…
A Model for Neutrino Masses and Dark Matter
Lawrence M. Krauss, Salah Nasri, Mark Trodden
We propose a model for neutrino masses that simultaneously results in a new dark matter candidate, the right-handed neutrino. We derive the dark matter abundance in this model, sho…
Quintessential Baryogenesis
Antonio De Felice, Salah Nasri, Mark Trodden
The simplest explanation for early time acceleration (inflation) and the late time acceleration indicated by recent data is that they have a common origin. We investigate another g…
Present Status of experimental determination of Vcb
Marina Artuso, Elisabetta Barberio
The present status of our knowledge of the magnitude of the quark mixing parameter Vcb is reviewed, with particular emphasis on the factors affecting experimental and theoretical e…
Non-abelian Topological Strings and Metastable States in Linear Sigma Model
A. P. Balachandran, S. Digal
Non-abelian (NA) topological string defects exist in QCD with the spontaneous chiral symmetry breaking . Anomaly effects lead to domain walls…
Vector Meson Dominance Model for Radiative Decays Involving Light Scalar Mesons
Deirdre Black, Masayasu Harada, Joseph Schechter
We study a vector dominance model which predicts a fairly large number of currently interesting decay amplitudes of the types S -> γγ, V -> S γand S -> V γ, where S and V denote sc…