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We present a search for Galactic dark matter (DM) satellites using the Large Area Telescope (LAT). N-body simulations based on the Lambda-CDM model of cosmology predict a large number of as yet unobserved Galactic DM satellites. These…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Alex Drlica-Wagner , Ping Wang , Elliott Bloom , Louis Strigari

Although well established observations on cosmological, cluster, and galactic scales strongly suggest the existence of dark matter (DM), our understanding of its non-gravitational properties is still lacking. I review basic aspects of…

High Energy Physics - Phenomenology · Physics 2010-08-04 Marco Regis

The nature of Dark Matter (DM) is one of the most debated questions of contemporary physics. Ground-based arrays of Cherenkov telescopes such as the High Energy Spectroscopic System (H.E.S.S.) search for DM signatures through the detection…

High Energy Astrophysical Phenomena · Physics 2019-06-12 Lucia Rinchiuso , H. E. S. S. Collaboration

The concordance model in cosmology, $\Lambda$CDM, is able to fit the main cosmological observations with a high level of accuracy. However, around 95% of the energy content of the Universe within this framework remains still unknown. In…

Cosmology and Nongalactic Astrophysics · Physics 2018-05-17 Isaac Tutusaus , Brahim Lamine , Alain Blanchard

The nature of dark matter is still unknown and one of the most fundamental scientific mysteries. Although successfully describing large scales, the standard cold dark matter model (CDM) exhibits possible shortcomings on galactic and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Donnino Anderhalden , Aurel Schneider , Andrea V. Maccio , Juerg Diemand , Gianfranco Bertone

We present the updated version of MadDM, a new dark matter tool based on MadGraph5_aMC@NLO framework. New version includes direct detection capability in addition to relic abundance computation. In this article, we provide short description…

High Energy Physics - Phenomenology · Physics 2017-08-23 Mihailo Backovic , Antony Martini , Kyoungchul Kong , Olivier Mattelaer , Gopolang Mohlabeng

In the general scenario of Weakly Interacting Massive Particles (WIMP), dark matter (DM) can be observed via astrophysical gamma rays because photons are produced in various DM annihilation or decay processes, either as broad-band or line…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Michele Doro

The existence of dark matter (DM) was first noticed by Zwicky in the 1930s, but its nature remains one of the great unsolved problems of physics. A variety of observations indicate that it is non-baryonic and non-relativistic. One of the…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Troy A. Porter , Robert P. Johnson , Peter W. Graham

Dark Matter (DM) is an elusive form of matter which has been postulated to explain astronomical observations through its gravitational effects on stars and galaxies, gravitational lensing of light around these, and through its imprint on…

High Energy Physics - Phenomenology · Physics 2016-06-07 James Bateman , Ian McHardy , Alexander Merle , Tim R. Morris , Hendrik Ulbricht

Cosmological and astrophysical observations suggest that 85\% of the total matter of the Universe is made of Dark Matter (DM). However, its nature remains one of the most challenging and fundamental open questions of particle physics.…

We present MadDM v.2.0, a numerical tool for dark matter physics in a generic model. This version is the next step towards the development of a fully automated framework for dark matter searches at the interface of collider physics,…

High Energy Physics - Phenomenology · Physics 2015-11-20 Mihailo Backovic , Kyoungchul Kong , Antony Martini , Olivier Mattelaer , Gopolang Mohlabeng

We explore a new mechanism for reproducing the Dark Matter (DM) abundance: scatterings of one DM particle on light Standard Model particles. Strong bounds on its decays can be satisfied if DM undergoes freeze-in and has a mass around or…

Upcoming $\gamma$-ray satellites will search for Dark Matter annihilations in Milky Way substructures (or 'clumps'). The prospects for detecting these objects strongly depend on the assumptions made on the distribution of Dark Matter in…

Astrophysics · Physics 2008-11-26 L. Pieri , G. Bertone , E Branchini

Around one third of the point-like sources in the Fermi-LAT catalogs remain as unidentified sources (unIDs) today. Indeed, these unIDs lack a clear, univocal association with a known astrophysical source. If dark matter (DM) is composed of…

High Energy Astrophysical Phenomena · Physics 2023-02-21 V. Gammaldi , B. Zaldívar , M. A. Sánchez-Conde , J. Coronado-Blázquez

There should be not doubt by now that neutrino telescopes are competitive instruments when it comes to searches for dark matter. Their large detector volumes collect hundreds of neutrinos per day. They scrutinize the whole sky continuously,…

High Energy Astrophysical Phenomena · Physics 2018-08-27 Carlos Pérez de los Heros

Satellite galaxies of the Milky Way are among the most promising targets for dark matter searches in gamma rays. We present a search for dark matter consisting of weakly interacting massive particles, applying a joint likelihood analysis to…

High Energy Astrophysical Phenomena · Physics 2012-08-27 LAT Collaboration , M. Ackermann , M. Ajello , A. Albert , W. B. Atwood , L. Baldini , J. Ballet , G. Barbiellini , D. Bastieri , K. Bechtol , R. Bellazzini , B. Berenji , R. D. Blandford , E. D. Bloom , E. Bonamente , A. W. Borgland , J. Bregeon , M. Brigida , P. Bruel , R. Buehler , T. H. Burnett , S. Buson , G. A. Caliandro , R. A. Cameron , B. Canadas , P. A. Caraveo , J. M. Casandjian , C. Cecchi , E. Charles , A. Chekhtman , J. Chiang , S. Ciprini , R. Claus , J. Cohen-Tanugi , J. Conrad , S. Cutini , A. de Angelis , F. de Palma , C. D. Dermer , S. W. Digel , E. do Couto e Silva , P. S. Drell , A. Drlica-Wagner , L. Falletti , C. Favuzzi , S. J. Fegan , E. C. Ferrara , Y. Fukazawa , S. Funk , P. Fusco , F. Gargano , D. Gasparrini , N. Gehrels , S. Germani , N. Giglietto , F. Giordano , M. Giroletti , T. Glanzman , G. Godfrey , I. A. Grenier , S. Guiriec , M. Gustafsson , D. Hadasch , M. Hayashida , E. Hays , R. E. Hughes , T. E. Jeltema , G. Johannesson , R. P. Johnson , A. S. Johnson , T. Kamae , H. Katagiri , J. Kataoka , J. Knödlseder , M. Kuss , J. Lande , L. Latronico , A. M. Lionetto , M. Llena Garde , F. Longo , F. Loparco , B. Lott , M. N. Lovellette , P. Lubrano , G. M. Madejski , M. N. Mazziotta , J. E. McEnery , J. Mehault , P. F. Michelson , W. Mitthumsiri , T. Mizuno , C. Monte , M. E. Monzani , A. Morselli , I. V. Moskalenko , S. Murgia , M. Naumann-Godo , J. P. Norris , E. Nuss , T. Ohsugi , A. Okumura , N. Omodei , E. Orlando , J. F. Ormes , M. Ozaki , D. Paneque , D. Parent , M. Pesce-Rollins , M. Pierbattista , F. Piron , G. Pivato , T. A. Porter , S. Profumo , S. Raino , M. Razzano , A. Reimer , O. Reimer , S. Ritz , M. Roth , H. F. -W. Sadrozinski , C. Sbarra , J. D. Scargle , T. L. Schalk , C. Sgro , E. J. Siskind , G. Spandre , P. Spinelli , L. Strigari , D. J. Suson , H. Tajima , H. Takahashi , T. Tanaka , J. G. Thayer , J. B. Thayer , D. J. Thompson , L. Tibaldo , M. Tinivella , D. F. Torres , E. Troja , Y. Uchiyama , J. Vandenbroucke , V. Vasileiou , G. Vianello , V. Vitale , A. P. Waite , P. Wang , B. L. Winer , K. S. Wood , M. Wood , Z. Yang , S. Zimmer , M. Kaplinghat , G. D. Martinez

The complementarity between dark matter searches at colliders and in underground laboratories is an extraordinarily powerful tool in the quest for dark matter. In the vast majority of the analyses conducted so far these dark matter…

High Energy Physics - Phenomenology · Physics 2013-04-24 Giorgio Arcadi , Riccardo Catena , Piero Ullio

While dark matter (DM) makes up roughly 80% of the total matter in the Universe, its microscopic properties remain one of the biggest questions in Cosmology today. Fortunately, those properties dictate the distribution and form of…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-20 Michael N. Martinez

The details of what constitutes the majority of the mass that makes up dark matter in the Universe remains one of the prime puzzles of cosmology and particle physics today - eighty years after the first observational indications. Today, it…

High Energy Astrophysical Phenomena · Physics 2015-12-16 Stefan Funk

Dark matter (DM) has been searched for at colliders in a largely model independent fashion by looking for an excess number of events involving a single jet, or photon, and missing energy. We investigate the possibility of looking for…

High Energy Physics - Phenomenology · Physics 2013-05-30 Patrick J. Fox , Roni Harnik , Reinard Primulando , Chiu-Tien Yu