8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- L. Sánchez‐Soto128 · h 37
- M. Martin-Delgado126 · h 47
- F. Llanes-Estrada122 · h 28
- P. Pérez-González2 profiles120 · h 71
- V. Martín-Mayor112 · h 41
- J. Caballero3 profiles103 · h 36
- D. Montes2 profiles100 · h 47
- A. Dobado96 · h 32
- A. L. Maroto79 · h 32
- F. Domínguez‐Adame79 · h 28
- J. Gallego73 · h 30
- L. A. Fernández70 · h 28
- Instituto de Astrofísica de CanariasES749 papers
- Centre National de la Recherche ScientifiqueFR727 papers
- Consejo Superior de Investigaciones CientíficasES669 papers
- Universidad de La LagunaES660 papers
- Universidad Autónoma de MadridES549 papers
- Instituto de Astrofísica de AndalucíaES514 papers
- National Institute for AstrophysicsIT368 papers
- Centro de AstrobiologíaES366 papers
- Universidad Carlos III de MadridES354 papers
- University of PaduaIT351 papers
- Institute of Mathematical SciencesIN350 papers
- Institute of Space SciencesES347 papers
70 papers · 1 filter
Near-IR line-strengths in elliptical galaxies: evidence for IMF variations?
A. J. Cenarro, J. Gorgas, A. Vazdekis +2
We present new relations between recently defined line-strength indices in the near-IR (CaT*, CaT, PaT, MgI, and sTiO) and central velocity dispersion (sigma_0) for a sample of 35…
Rho and Sigma Mesons in Unitarized Thermal ChPT
F. J. Llanes-Estrada, A. Dobado, A. Gomez Nicola +1
We present our recent results for the rho and sigma mesons considered as resonances in pion-pion scattering in a thermal bath. We use chiral perturbation theory to fourth order in…
Relativistic Quark Model Calculation of the l1, l2 Coefficients of the Chiral Lagrangian
Felipe J. Llanes-Estrada, Pedro Bicudo
We briefly report on a relativistic quark model scheme to calculate the O(P^4) pion-pion vertex in the planar approximation and in the chiral limit. The calculation is reduced to t…
Thermal Meson properties within Chiral Perturbation Theory
A. Gomez Nicola, J. R. Pelaez, A. Dobado +1
We report on our recent work about the description of a meson gas below the chiral phase transition within the framework of Chiral Perturbation Theory. As an alternative to the sta…
Relativity in polarized electron scattering observables
J. A. Caballero, M. C. Martínez, T. W. Donnelly +3
Coincidence scattering of polarized electrons from nuclei with polarization transfer to outgoing nucleons is studied within the context of relativistic mean field theory. Effects i…
Meson resonances from unitarized meson scattering at one loop in Chiral Perturbation Theory
J. R. Pelaez, A. Gomez Nicola, .
We show the results for the scattering poles associated to the rho, f0, a0, K*, sigma and kappa resonances in meson-meson scattering. Our amplitudes are obtained from the complete…
Limits on the brane fluctuations mass and on the brane tension scale from electron-positron colliders
J. Alcaraz, J. A. R. Cembranos, A. Dobado +1
In the context of the brane-world scenarios with compactified large extra dimensions, we study the production of the possible massive brane oscillations (branons) in electron-posit…
Optimal strategies in collective Parrondo games
Luis Dinis, Juan M. R. Parrondo
We present a modification of the so-called Parrondo's paradox where one is allowed to choose in each turn the game that a large number of individuals play. It turns out that, by ch…
Polarization Transfer in the ^4He(\vec e,e'\vec p)^3H Reaction up to Q^2 = 2.6 (GeV/c)^2
S. Strauch, S. Dieterich
We have measured the proton recoil polarization in the ^4He(\vec e,e'\vec p)^3H reaction at Q^2 = 0.5, 1.0, 1.6, and 2.6 (GeV/c)^2. The measured ratio of polarization transfer coef…
Two-photon imaging and quantum holography
Gunnar Bjork, Jonas Soderholm, Luis L. Sanchez-Soto
It has been claimed that ``the use of entangled photons in an imaging system can exhibit effects that cannot be mimicked by any other two-photon source, whatever strength of the co…
The Gauge Anomaly and the Seiberg-Witten Map
C. P. Martin
The consistent form of the gauge anomaly is worked out at first order in for the noncommutative three-point function of the ordinary gauge field of certain noncommutative chira…
Essential coordinate components of characteristic varieties
Enrique Artal Bartolo, Jorge Carmona Ruber, Jose Ignacio Cogolludo Agustin
In this note we give an algebraic and topological interpretation of essential coordinate components of characteristic varieties and illustrate their importance with an example.
The Equivalence Theorem for gauge boson scattering in a five dimensional Standard Model
Stefania De Curtis, Daniele Dominici, Jose R. Pelaez
We present an Equivalence Theorem for the longitudinal components of the gauge bosons in a compactified five dimensional extension of the Standard Model, whose spontaneous symmetry…
The Pioneer riddle, the quantum vacuum and the acceleration of light
Antonio F. Ranada
It is shown that the same phenomenological Newtonian model recently proposed by the author to explain the cosmological evolution of the fine structure constant suggests furthermore…
BRS symmetry restoration of chiral Abelian Higgs-Kibble theory in dimensional renormalization with a non-anticommuting
D. Sanchez-Ruiz
The one-loop renormalization of the abelian Higgs-Kibble model in a general 't Hooft gauge and with chiral fermions is fully worked out within dimensional renormalization scheme wi…
Transport through a quantum wire with a side quantum-dot array
P. A. Orellana, F. Dominguez-Adame, I. Gomez +1
A noninteracting quantum-dot array side-coupled to a quantum wire is studied. Transport through the quantum wire is investigated by using a noninteracting Anderson tunneling Hamilt…
Phase diagram and influence of defects in the double perovskites
J. L. Alonso, L. A. Fernandez, F. Guinea +2
The phase diagram of the double perovskites of the type Sr_{2-x} La_x Fe Mo O_6 is analyzed, with and without disorder due to antisites. In addition to an homogeneous half metallic…
Simultaneous Optical and X-ray Observations of Flares and Rotational Modulation on the RS CVn Binary HR 1099 (V711 Tau) from the MUSICOS 1998 Campaign
D. Garcia-Alvarez, B. H. Foing, D. Montes +2
We present simultaneous and continuous observations of the H, H, He {\sc i} D, Na {\sc i} D,D doublet and the Ca {\sc ii} H & K lines for the RS CVn system…
Star Formation Rate estimators: [OII]3727 vs. Halpha for local star-forming galaxies
A. Aragon-Salamanca, A. Alonso-Herrero, J. Gallego +4
The [OII]3727 emission line is frequently used as an indicator of the star formation rate (SFR) despite its complex dependence on metallicity and excitation conditions. We have ana…
The [OII]3727 Luminosity Function of the Local Universe
J. Gallego, C. E. Garcia-Dabo, J. Zamorano +2
The measurement of the Star Formation Rate density of the Universe is of prime importance in understanding the formation and evolution of galaxies. The [OII]3727 emission line flux…
decay within unitarized chiral perturbation theory
E. Oset, J. R. Pelaez, L. Roca
We improve the calculations of the decay within the context of meson chiral lagrangians. We use a chiral unitary approach for the meson-meson interaction, thus genera…
On the Whitham Hierarchies: Reductions and Hodograph Solutions
Francisco Guil, Manuel Manas, Luis Martinez Alonso
A general scheme for analyzing reductions of Whitham hierarchies is presented. It is based on a method for determining the -function by means of a system of first order partial…
Monte Carlo studies on the sensitivity of the HEGRA imaging atmospheric Cerenkov telescope system in observations of extended gamma-ray sources
A. Konopelko, F. Lucarelli, H. Lampeitl +1
In this paper, we present the results of Monte Carlo simulations of atmospheric showers induced by diffuse gamma rays as detected by the high-energy gamma ray astronomy (HEGRA) sys…
A search for TeV gamma-ray emission from SNRs, pulsars and unidentified GeV sources in the Galactic plane in the longitude range between -2 deg and 85 deg
HEGRA-Collaboration, F. A. Aharonian
Using the HEGRA system of imaging atmospheric Cherenkov telescopes, one quarter of the Galactic plane (-2 deg < l < 85 deg) was surveyed for TeV gamma-ray emission from point sourc…