J. A. García
University of Zaragoza
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Featured researches published by J. A. García.
Physics Reports | 2016
James Battat; I.G. Irastorza; A. Aleksandrov; Takashi Asada; E. Baracchini; J. Billard; G. Bosson; O. Bourrion; J. Bouvier; A. Buonaura; K. Burdge; S. Cebrián; P. Colas; L. Consiglio; T. Dafni; N. D’Ambrosio; C. Deaconu; G. De Lellis; T. Descombes; A. Di Crescenzo; N. Di Marco; Gabriela Druitt; Richard Eggleston; E. Ferrer-Ribas; T. Fusayasu; J. Galán; G. Galati; J. A. García; J. G. Garza; V. Gentile
The measurement of the direction of WIMP-induced nuclear recoils is a compelling but technologically challenging strategy to provide an unambiguous signature of the detection of Galactic dark matter. Most directional detectors aim to reconstruct the dark-matter-induced nuclear recoil tracks, either in gas or solid targets. The main challenge with directional detection is the need for high spatial resolution over large volumes, which puts strong requirements on the readout technologies. In this paper we review the various detector readout technologies used by directional detectors. In particular, we summarize the challenges, advantages and drawbacks of each approach, and discuss future prospects for these technologies.
Journal of Cosmology and Astroparticle Physics | 2012
I.G. Irastorza; J. A. García
We study the directional effect of the expected axion dark matter signal in a resonant cavity of an axion haloscope detector, for cavity geometries not satisfying the condition that the axion de Broglie wavelength λa is sufficiently larger than the cavity dimensions L for a fully coherent conversion, i.e. λa2πL. We focus on long thin cavities immersed in dipole magnets and find, for appropriately chosen cavity lengths, an O(1) modulation of the signal with the cavity orientation with respect the momentum distribution of the relic axion background predicted by the isothermal sphere model for the galactic dark matter halo. This effect can be exploited to design directional axion dark matter detectors, providing an unmistakable signature of the extraterrestrial origin of a possible positive detection. Moreover, the precise shape of the modulation may give information of the galactic halo distribution and, for specific halo models, give extra sensitivity for higher axion masses.
European Physical Journal C | 2016
F. J. Iguaz; J. G. Garza; F Aznar; J. Castel; S. Cebrián; T. Dafni; J. A. García; I.G. Irastorza; A Lagraba; G. Luzón; A. Peiró
If Dark Matter is made of Weakly Interacting Massive Particles (WIMPs) with masses below
Journal of Cosmology and Astroparticle Physics | 2016
I.G. Irastorza; F. Aznar; J. Castel; S. Cebrián; T. Dafni; J. Galán; J. A. García; J. G. Garza; Haley Louise Gomez; D C Herrera; F. J. Iguaz; G. Luzón; H. Mirallas; E. Ruiz; L. Seguí; A. Tomás
Physical Review D | 2015
M. Arik; S. Aune; K. Barth; A. Belov; H. Bräuninger; J. Bremer; V. Burwitz; G. Cantatore; J.M. Carmona; S. A. Cetin; J. I. Collar; E. Da Riva; T. Dafni; M. Davenport; A. Dermenev; C. Eleftheriadis; N. Elias; G. Fanourakis; E. Ferrer-Ribas; J. Galán; J. A. García; A. Gardikiotis; J. G. Garza; E. N. Gazis; T. Geralis; E. Georgiopoulou; I. Giomataris; Sergei Gninenko; M. Gómez Marzoa; M. D. Hasinoff
{sim }20
Journal of Cosmology and Astroparticle Physics | 2016
I.G. Irastorza; F Aznar; J. Castel; S. Cebrián; T. Dafni; J. Galán; J. A. García; J. G. Garza; H. Gómez; D C Herrera; F. J. Iguaz; G. Luzón; H. Mirallas; E. Ruiz; L. Seguí; A. Tomás
Journal of Physics: Conference Series | 2012
T. Dafni; S. Aune; S. Cebrián; G. Fanourakis; E. Ferrer-Ribas; J. Galán; J. A. García; A. Gardikiotis; J. G. Garza; T. Geralis; I. Giomataris; Haley Louise Gomez; D C Herrera; F. J. Iguaz; I.G. Irastorza; G. Luzón; T. Papaevangelou; A. Rodríguez; J. Ruz; L. Seguí; A. Tomás; T. Vafeiadis; S.C. Yildiz
∼20 GeV, the corresponding nuclear recoils in mainstream WIMP experiments are of energies too close, or below, the experimental threshold. Gas Time Projection Chambers (TPCs) can be operated with a variety of target elements, offer good tracking capabilities and, on account of the amplification in gas, very low thresholds are achievable. Recent advances in electronics and in novel radiopure TPC readouts, especially micro-mesh gas structure (Micromegas), are improving the scalability and low-background prospects of gaseous TPCs. Here we present TREX-DM, a prototype to test the concept of a Micromegas-based TPC to search for low-mass WIMPs. The detector is designed to host an active mass of
6th Symposium on Large TPCs for Low Energy Rare Event Detection | 2013
I.G. Irastorza; F. T. Avignone; G. Cantatore; J.M. Carmona; S Caspi; S. A. Cetin; Finn Erland Christensen; A. Dael; T. Dafni; M. Davenport; A.V. Derbin; K. Desch; A. Diago; B Dobrich; A. Dudarev; C. Eleftheriadis; G. Fanourakis; E. Ferrer-Ribas; J. Galán; J. A. García; J. G. Garza; T. Geralis; B. Gimeno; I. Giomataris; Sergei Gninenko; Haley Louise Gomez; E. I. Guendelman; Charles J. Hailey; T. Hiramatsu; D. H. H. Hoffmann
Journal of Physics: Conference Series | 2012
T. Dafni; S. Aune; J. Castel; S. Cebrián; G. Fanourakis; E. Ferrer-Ribas; D. Fortuño; J. Galán; J. A. García; A. Gardikiotis; J. G. Garza; T. Geralis; I. Giomataris; Haley Louise Gomez; D C Herrera; F. J. Iguaz; I.G. Irastorza; G. Luzón; J.P. Mols; A. Ortiz; T. Papaevangelou; A. Rodríguez; J. Ruz; L. Seguí; A. Tomás; T. Vafeiadis; S.C. Yildiz
{sim }0.300
Journal of Physics: Conference Series | 2015
F. J. Iguaz; J. G. Garza; F. Aznar; J. Castel; S. Cebrián; T. Dafni; J. A. García; Haley Louise Gomez; D. González-Díaz; I.G. Irastorza; A Lagraba; G. Luzón; A. Peiró; A. Rodríguez