Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidad Autónoma de MadridES2.3k papers
- Centre National de la Recherche ScientifiqueFR1.6k papers
- Instituto de Astrofísica de CanariasES1.2k papers
- Instituto de Astrofísica de AndalucíaES988 papers
- Instituto de Ciencia de Materiales de MadridES946 papers
- Universitat de ValènciaES928 papers
- Universidad de La LagunaES918 papers
- Instituto de Física TeóricaES897 papers
- Institute of Space SciencesES860 papers
- Centro de AstrobiologíaES762 papers
- Instituto de Física CorpuscularES759 papers
- National Institute for AstrophysicsIT759 papers
32 papers · 1 filter
Chiral Symmetry Breaking in the Nambu-Jona-Lasinio Model in Curved Spacetime with Non-Trivial Topology
E. Elizalde, S. Leseduarte, S. D. Odintsov
We discuss the phase structure (in the -expansion) of the Nambu-Jona-Lasinio model in curved spacetime with non-trivial topology . The evaluation…
Aspects of the electroweak phase transition in the Minimal Supersymmetric Standard Model
A. Brignole, J. R. Espinosa, M. Quiros +1
We study the finite-temperature effective potential of the Minimal Supersymmetric Standard Model in the full (mA, tan(beta)) parameter space. As for the features of the electroweak…
Dynamical Determination of the Metric Signature in Spacetime of Nontrivial Topology
E. Elizalde, S. D. Odintsov, A. Romeo
The formalism of Greensite for treating the spacetime signature as a dynamical degree of freedom induced by quantum fields is considered for spacetimes with nontrivial topology of…
On the integrability of N=2 supersymmetric massive theories
C. Gomez, G. Sierra
In this paper we propose a criteria to establish the integrability of N=2 supersymmetric massive theories.The basic data required are the vacua and the spectrum of Bogomolnyi solit…
Relativistic versus Nonrelativistic Optical Potentials in A(e,e'p)B Reactions
J. M. Udias, P. Sarriguren, E. Moya de Guerra +2
We investigate the role of relativistic and nonrelativistic optical potentials used in the analysis of () data. We find that the relativistic calculations produce smaller ($…
One-Loop QCD Mass Effects in the Production of Polarized Bottom and Top Quarks
J. G. K"orner, A. Pilaftsis, M. M. Tung
The analytic expressions for the production cross sections of polarized bottom and top quarks in annihilation are explicitly derived at the one-loop order of strong intera…
Non-Fermi liquid behaviour of electrons in the half-filled honeycomb lattice (A renormalization group approach)
J. Gonzalez, F. Guinea, M. A. H. Vozmediano
A system of electrons in the two-dimensional honeycomb lattice with Coulomb interactions is described by a renormalizable quantum field theory similar but not equal to QED_3. Renor…
Electronic interactions in fullerene molecules
J. Gonzalez, F. Guinea, M. A. H. Vozmediano
We study the Coulomb interactions in fullerene molecules within a continuum formalism. The model gives rise to a renormalizable field theory, which has many similarities to standar…
Renormalization-Group Improved Effective Lagrangian for Interacting Theories in Curved Spacetime
E. Elizalde, S. D. Odintsov
A method for finding the renormalization group (RG) improved effective Lagrangian for a massive interacting field theory in curved spacetime is presented. As a particular example,…
One-Loop Renormalization of Higher-Derivative 2D Dilaton Gravity
E. Elizalde, S. Naftulin, S. D. Odintsov
A theory of higher-derivative 2D dilaton gravity which has its roots in the massive higher-spin mode dynamics of string theory is suggested. The divergences of the effective action…
A Real Polynomial Formulation of General Relativity in terms of Connections
J. Fernando Barbero
I show in this letter that it is possible to construct a Hamiltonian description for Lorentzian General Relativity in terms of two real connections. The constraints are sim…
Spectroscopic Factors in Ca and Pb from : Fully Relativistic Analysis
J. M. Udias, P. Sarriguren, E. Moya de Guerra +2
We present results for spectroscopic factors of the outermost shells in Ca and Pb, which have been derived from the comparison between the available quasielastic ($e…
Blackbody Distribution for Wormholes
P. F. González-Díaz
By assuming that only (i) bilocal vertex operators which are diagonal with respect to the basis for local field operators, and (ii) the convergent elements with nonzero positive en…
Quantum State and Spontaneous Symmetry Breaking in Gravity
Pedro F. Gonzalez-Diaz
A spontaneous symmetry breaking mechanism is used in quantum gravity to obtain a convergent positive definite density-matrix as the most general quantum state of Euclidean wormhole…
Reflection equations and q-Minkowski space algebras
J. A. de Azcárraga, P. P. Kulish, F. Ródenas
We express the defining relations of the -deformed Minkowski space algebra as well as that of the corresponding derivatives and differentials in the form of reflection equations…
Model Independent Properties and Cosmological Implications of the Dilaton and Moduli Sectors of 4-d Strings
B. de Carlos, J. A. Casas, F. Quevedo +1
We show that if there is a realistic 4-d string, the dilaton and moduli supermultiplets will generically acquire a small mass O(m_{3/2}), providing the only vacuum-independent evid…
On the Spontaneous CP Breaking in the Higgs Sector of the Minimal Supersymmetric Standard Model
J. R. Espinosa, J. M. Moreno, M. Quirós
We revise a recently proposed mechanism for spontaneous CP breaking at finite temperature in the Higgs sector of the Minimal Supersymmetric Standard Model, based on the contributio…
Polarized Deformed Nuclei Studied via Coincidence Polarized Electron Scattering: The case of 21 Ne
J. A. Caballero, T. W. Donnelly, G. I. Poulis +2
Coincidence reactions of the type $\svec{A}(\svec{e},e'N)B$ involving the scattering of polarized electrons from deformed polarized targets are discussed within the context of the…
Universality-Breaking Effects in Leptonic Z Decays
J. Bernabeu, J. Korner, A. Pilaftsis +1
We analyze the possibility of universality violation in diagonal leptonic decays of the boson, in the context of interfamily "see-saw" models. In a minimal extension of the Sta…
Dynamical zeros in neutrino-electron elastic scattering at leading order
J. Segura, J. Bernabéu, F. J. Botella +1
We show the existence of dynamical zeros in the helicity amplitudes for neutrino-electron elastic scattering at lowest order in the standard theory. In particular, the non-…
Quantum Clifford-Hopf Algebras for Even Dimensions
E. Lopez
In this paper we study the quantum Clifford-Hopf algebras for even dimensions and obtain their intertwiner matrices, which are elliptic solutions to the…
Hilbert space of wormholes
Luis J. Garay
Wormhole boundary conditions for the Wheeler--DeWitt equation can be derived from the path integral formulation. It is proposed that the wormhole wave function must be square integ…
Model Independent Upper Bound on the Lightest Higgs Boson Mass in Supersymmetric Standard Models
Mariano Quiros
One of the main features of the Minimal Supersymmetric Standard Model (MSSM) is the existence of an absolute tree-level upper bound on the mass of the lightest Higgs…
The Quantum Sphaleron
P. F. Gonzalez-Diaz
A gravitational instanton is found that can tunnel into a new more stable vacuum phase where diffeomorphism invariance is broken and pitchfork bifurcations develop. This tunnelling…