Showing papers by "J. M. Carmona published in 2010"
Boston University1, University of Waterloo2, Perimeter Institute for Theoretical Physics3, Massachusetts Institute of Technology4, Joseph Fourier University5, University of California, Los Angeles6, Occidental College7, University of Pennsylvania8, University of Zaragoza9, University of Sheffield10, Brandeis University11, Harvard University12, Nagasaki Institute of Applied Science13, University of Edinburgh14, University of New Mexico15, University of Huelva16, University of Utah17, University of Nottingham18, Kyoto University19, Lawrence Berkeley National Laboratory20, Temple University21, University of Warwick22, New York University23, Nagoya University24, University of Tokyo25, Saga University26, University of Ioannina27
TL;DR: The case for a dark matter detector with directional sensitivity was presented at the 2009 CYGNUS workshop on directional dark matter detection, and contributions from theorists and experimental groups in the field as mentioned in this paper.
Abstract: We present the case for a dark matter detector with directional sensitivity. This document was developed at the 2009 CYGNUS workshop on directional dark matter detection, and contains contributions from theorists and experimental groups in the field. We describe the need for a dark matter detector with directional sensitivity; each directional dark matter experiment presents their project's status; and we close with a feasibility study for scaling up to a one ton directional detector, which would cost around $150M.
224 citations
TL;DR: In this paper, the authors consider the possible role of experiments involving non-relativistic particles, and particularly atoms, and extend a recent result establishing that measurements of 'atom-recoil frequency' can provide an insight that is valuable for some theoretical models.
Abstract: For the study of Planck-scale modifications of the energy–momentum dispersion relation, which had been previously focused on the implications for ultrarelativistic particles, we consider the possible role of experiments involving nonrelativistic particles, and particularly atoms. We extend a recent result establishing that measurements of 'atom-recoil frequency' can provide an insight that is valuable for some theoretical models. From a broader perspective we analyze the complementarity of the nonrelativistic and the ultrarelativistic regimes in this research area.
36 citations
TL;DR: In this paper, the authors consider the possible role of experiments involving non-relativistic particles, and particularly atoms, and extend a recent result establishing that measurements of "atom-recoil frequency" can provide insight that is valuable for some theoretical models.
Abstract: For the study of Planck-scale modifications of the energy-momentum dispersion relation, which had been previously focused on the implications for ultrarelativistic (ultrafast) particles, we consider the possible role of experiments involving nonrelativistic particles, and particularly atoms. We extend a recent result establishing that measurements of "atom-recoil frequency" can provide insight that is valuable for some theoretical models. And from a broader perspective we analyze the complementarity of the nonrelativistic and the ultrarelativistic regimes in this research area.
23 citations
TL;DR: In this article, the results of a search for a high-energy axion emission signal from 7Li (0.478 MeV) and D(p, γ)3He (5.5 MEV) nuclear transitions using a low-background γ-ray calorimeter were presented.
Abstract: We present the results of a search for a high-energy axion emission signal from 7Li (0.478 MeV) and D(p, γ)3He (5.5 MeV) nuclear transitions using a low-background γ-ray calorimeter during Phase I of the CAST experiment. These so-called ``hadronic axions'' could provide a solution to the long-standing strong-CP problem and can be emitted from the solar core from nuclear M1 transitions. This is the first such search for high-energy pseudoscalar bosons with couplings to nucleons conducted using a helioscope approach. No excess signal above background was found.
23 citations
TL;DR: In this article, a general framework to describe Planckian deviations from special relativity compatible with a relativistic principle is proposed, and the conditions in which such deviations might be experimentally observable in the near future, together with the nontrivial limits of applicability of this asymptotic approach.
Abstract: We propose a general framework to describe Planckian deviations from special relativity compatible with a relativistic principle. They are introduced as the leading corrections in an asymptotic approach to special relativity going beyond the energy power expansion of effective field theories. We discuss the conditions in which these Planckian effects might be experimentally observable in the near future, together with the nontrivial limits of applicability of this asymptotic approach that such a situation would produce, both at the very high (ultraviolet) and the very low (infrared) energy regimes.
9 citations
01 Jan 2010
TL;DR: In this article, a technique to measure the cosmic muon flux distribution has been developed in the old Canfranc Underground Laboratory (2450 m.w.t.e.).
Abstract: A technique to measure the cosmic muon flux distribution has been developed in the old Canfranc Underground Laboratory (2450 m.w.e.).This technique can determine the muon direction and it allows to obtain a three-dimensional distribution of the muon intensity which could be correlated to the mountain profile, as well. The experimental set-up, which has been taking data since November 2008, consists of a Time Projection Chamber (TPC) detector and a veto system composed of two plastic scintillators.