Dark matter and fundamental physics with the Cherenkov Telescope Array

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dc.contributor.authorDoro, M.
dc.contributor.authorConrad, J.
dc.contributor.authorEmmanoulopoulos, D.
dc.contributor.authorSànchez-Conde, M.A.
dc.contributor.authorBarrio, J.A.
dc.contributor.authorBirsin, E.
dc.contributor.authorBolmont, J.
dc.contributor.authorBrun, P.
dc.contributor.authorColafrancesco, S.
dc.contributor.authorConnell, S.H.
dc.contributor.authorContreras, J.L.
dc.contributor.authorDaniel, M.K.
dc.contributor.authorFornasa, M.
dc.contributor.authorGaug, M.
dc.contributor.authorGlicenstein, J.F.
dc.contributor.authorGonzález-Muñoz, A.
dc.contributor.authorHassan, T.
dc.contributor.authorHorns, D.
dc.contributor.authorJacholkowska, A.
dc.contributor.authorJahn, C.
dc.contributor.authorMazini, R.
dc.contributor.authorMirabal, N.
dc.contributor.authorMoralejo, A.
dc.contributor.authorMoulin, E.
dc.contributor.authorNieto, D.
dc.contributor.authorRipken, J.
dc.contributor.authorSandaker, H.
dc.contributor.authorSchwanke, U.
dc.contributor.authorSpengler, G.
dc.contributor.authorStamerra, A.
dc.contributor.authorViana, A.
dc.contributor.authorZechlin, H.-S.
dc.contributor.authorZimmer, S.
dc.date.accessioned2020-09-02T17:43:12Z
dc.date.available2020-09-02T17:43:12Z
dc.date.issued2012-08-25
dc.description.abstractThe Cherenkov Telescope Array (CTA) is a project for a next-generation observatory for very high energy (GeV–TeV) ground-based gamma-ray astronomy, currently in its design phase, and foreseen to be operative a few years from now. Several tens of telescopes of 2–3 different sizes, distributed over a large area, will allow for a sensitivity about a factor 10 better than current instruments such as H.E.S.S, MAGIC and VERITAS, an energy coverage from a few tens of GeV to several tens of TeV, and a field of view of up to 10°. In the following study, we investigate the prospects for CTA to study several science questions that can profoundly influence our current knowledge of fundamental physics. Based on conservative assumptions for the performance of the different CTA telescope configurations currently under discussion, we employ a Monte Carlo based approach to evaluate the prospects for detection and characterisation of new physics with the array. First, we discuss CTA prospects for cold dark matter searches, following different observational strategies: in dwarf satellite galaxies of the Milky Way, which are virtually void of astrophysical background and have a relatively well known dark matter density; in the region close to the Galactic Centre, where the dark matter density is expected to be large while the astrophysical background due to the Galactic Centre can be excluded; and in clusters of galaxies, where the intrinsic flux may be boosted significantly by the large number of halo substructures. The possible search for spatial signatures, facilitated by the larger field of view of CTA, is also discussed. Next we consider searches for axion-like particles which, besides being possible candidates for dark matter may also explain the unexpectedly low absorption by extragalactic background light of gamma-rays from very distant blazars. We establish the axion mass range CTA could probe through observation of long-lasting flares in distant sources. Simulated light-curves of flaring sources are also used to determine the sensitivity to violations of Lorentz invariance by detection of the possible delay between the arrival times of photons at different energies. Finally, we mention searches for other exotic physics with CTA.en_US
dc.description.sponsorshipWe gratefully acknowledge support from the following agen-cies and organisations: Ministerio de Ciencia, Tecnología e Innova-ción Productiva (MinCyT), Comisión Nacional de Energía Atómica(CNEA) and Consejo Nacional de Investigaciones Científicas y Técn-icas (CONICET) Argentina; State Committee of Science of Armenia;Ministry for Research, CNRS-INSU and CNRS-IN2P3, Irfu-CEA, ANR,France; Max Planck Society, BMBF, DESY, Helmholtz Association,Germany; MIUR, Italy; Netherlands Research School for Astronomy(NOVA), Netherlands Organization for Scientific Research (NWO);Ministry of Science and Higher Education and the National Centrefor Research and Development, Poland; MICINN support throughthe National R + D+I, CDTI funding plans and the CPAN and Multi-Dark Consolider-Ingenio 2010 programme, Spain; Swedish Re-search Council, Royal Swedish Academy of Sciences financed,Sweden; Swiss National Science Foundation (SNSF), Switzerland;Leverhulme Trust, Royal Society, Science and Technologies Facili-ties Council, Durham University, UK; National Science Foundation,Department of Energy, Argonne National Laboratory, University ofCalifornia, University of Chicago, Iowa State University, Institutefor Nuclear and Particle Astrophysics (INPAC-MRPI program),Washington University McDonnell Centre for the Space Sciences,USA. We thank I. Freire, S. Funk, W. Hofmann, A. Murphy, A. Pinzke,S. Sarkar, D. Torres and F. Zandanel who provided comments on themanuscript. D. Emmanoulopoulos acknowledges the Science andTechnology Facilities Council (STFC) for support under grant ST/G003084/1. This work was partially supported by the Spanish Con-solider-Ingenio CPAN (CPAN09-PD13) and Multidark (CSD2009–00064). A. Jacholkowska and J. Bolmont acknowledge the supportof GdR PCHE in France.en_US
dc.description.urihttps://www.sciencedirect.com/science/article/pii/S092765051200148Xen_US
dc.format.extent26 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2ii0p-cogy
dc.identifier.citationM.Doro et al., Dark matter and fundamental physics with the Cherenkov Telescope Array, Astroparticle Physics Volume 43, Pages 189-214 (2013), doi : https://doi.org/10.1016/j.astropartphys.2012.08.002en_US
dc.identifier.urihttps://doi.org/10.1016/j.astropartphys.2012.08.002
dc.identifier.urihttp://hdl.handle.net/11603/19572
dc.language.isoen_USen_US
dc.publisherElsevieren_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department Collection
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology (JCET)
dc.relation.ispartofUMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsAttribution 3.0 Unported*
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/*
dc.titleDark matter and fundamental physics with the Cherenkov Telescope Arrayen_US
dc.typeTexten_US

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