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- Instituto Politécnico de LisboaPT30 papers
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49 papers · 1 filter
Universal behavior of baryons and mesons transverse momentum distributions in the framework of percolation of strings
L. Cunqueiro, J. Dias de Deus, E. G. Ferreiro +1
In the framework of percolation of strings, the transverse momentum distributions in AA and hh collisions at all centralities and energies follow a universal behavior. The width of…
Non-minimal coupling for the gravitational and electromagnetic fields: black hole solutions and solitons
Alexander B. Balakin, Vladimir V. Bochkarev, José P. S. Lemos
Using a Lagrangian formalism, a three-parameter non-minimal Einstein-Maxwell theory is established. The three parameters, , and , characterize the cross-terms in th…
Lie Algebroids and Classification Problems in Geometry
Rui Loja Fernandes, Ivan Struchiner
We show how one can associate to a given class of finite type G-structures a classifying Lie algebroid. The corresponding Lie groupoid gives models for the different geometries tha…
Universal Doublet-Singlet Higgs Couplings and phenomenology at the CERN Large Hadron Collider
Gautam Bhattacharyya, Gustavo C. Branco, S. Nandi
We consider a minimal extension of the standard model where a real, gauge singlet scalar field is added to the standard spectrum. Introducing the Ansatz of universality of scalar c…
Two-body scattering without angular-momentum decomposition
M. Rodriguez-Gallardo, A. Deltuva, E. Cravo +2
Two-body scattering is studied by solving the Lippmann-Schwinger equation in momentum space without angular-momentum decomposition for a local spin dependent short range interactio…
Four Zero Neutrino Yukawa Textures in the Minimal Seesaw Framework
Gustavo C. Branco, David Emmanuel-Costa, M. N. Rebelo +1
We investigate, within the Type I seesaw framework, the physical implications of zero textures in the Yukawa couplings which generate the neutrino Dirac mass matrix . It is sh…