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Dark Matter direct detection experiments are able to exclude interesting parameter space regions of particle models which predict an important amount of thermal relics. We use recent data to constrain the branon model and to compute the…

High Energy Physics - Phenomenology · Physics 2011-10-21 Jose A. R. Cembranos , J. Lorenzo Diaz-Cruz , Lilian Prado

Many experiments are underway in the world to search for a non-zero electric dipole moment (EDM) of a particle with spin 1/2 such as the neutron or the electron. Finding an EDM would reveal new sources of CP violation. EDM measurements are…

High Energy Physics - Phenomenology · Physics 2019-12-18 Guillaume Pignol

We investigate the hypothesis that Coulomb-type interactions between dark matter (DM) and baryons explain the anomalously low 21cm brightness-temperature minimum at redshift z ~ 17 that was recently measured by the EDGES experiment. In…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-05 Ely D. Kovetz , Vivian Poulin , Vera Gluscevic , Kimberly K. Boddy , Rennan Barkana , Marc Kamionkowski

In this work, we aim to provide a comprehensive and largely model independent investigation on prospects to detect long-lived multiply charged particles at the LHC. We consider particles with spin 0 and $\frac{1}{2}$, with electric charges…

High Energy Physics - Phenomenology · Physics 2022-10-11 Mohammad Mahdi Altakach , Priyanka Lamba , Rafał Masełek , Vasiliki A. Mitsou , Kazuki Sakurai

The recent observation of three events by the CDMS II experiment can be interpreted as a 8.6 GeV dark matter scatters elastically with the nucleons inside the silicon detectors with a spin-independent cross section of 1.9 x 10^-41 cm^2. We…

High Energy Physics - Phenomenology · Physics 2013-08-02 Kingman Cheung , Chih-Ting Lu , Po-Yan Tseng , Tzu-Chiang Yuan

A new concept of generation of the cosmological baryon excess along with the cold dark matter (CDM) in the Universe is proposed and corresponding scenarios are outlined. Possible realizations of the idea in the framework of supersymmetric…

High Energy Physics - Phenomenology · Physics 2014-11-17 Vadim A. Kuzmin

We explore the possibility that relativistic protons in the extremely powerful jets of blazars may boost via elastic collisions the dark matter particles in the surroundings of the source to high energies. We concentrate on two sample…

High Energy Astrophysical Phenomena · Physics 2022-06-07 Jin-Wei Wang , Alessandro Granelli , Piero Ullio

We investigate the direct detection phenomenology of a class of dark matter (DM) models in which DM does not directly interact with nuclei, {but rather} the products of its annihilation do. When these annihilation products are very light…

High Energy Physics - Phenomenology · Physics 2015-06-17 John F. Cherry , Mads T. Frandsen , Ian M. Shoemaker

Conventional indirect dark matter (DM) searches look for an excess in the electromagnetic emission from the sky that cannot be attributed to known astrophysical sources, but its polarisation has not been explored to date. In this…

High Energy Physics - Phenomenology · Physics 2021-10-13 Marina Cermeño , Céline Degrande , Luca Mantani

We set the strongest limits to-date on the velocity-independent dark matter (DM) - proton cross section $\sigma$ for DM masses $m = 10\,\mathrm{keV}$ to $100\,\mathrm{GeV}$, using large-scale structure traced by the Lyman-alpha forest:…

Cosmology and Nongalactic Astrophysics · Physics 2022-04-28 Keir K. Rogers , Cora Dvorkin , Hiranya V. Peiris

In this work, we want to highlight the potential of lithium as a target for spin-dependent dark matter search in cryogenic experiments, with a special focus on the low-mass region of the parameter space. We operated a prototype detector…

We investigate the clumping of cold dark matter (CDM) at small scales. If the CDM particle is the neutralino, we find that collisional damping during its kinetic decoupling from the radiation fluid and free streaming introduce a small-scale…

Astrophysics · Physics 2009-10-31 Dominik J. Schwarz , Stefan Hofmann

We present limits on spin-independent dark matter-nucleon interactions using a $10.6$ $\mathrm{g}$ Si athermal phonon detector with a baseline energy resolution of $\sigma_E=3.86 \pm 0.04$ $(\mathrm{stat.})^{+0.19}_{-0.00}$…

High Energy Physics - Experiment · Physics 2021-10-13 I. Alkhatib , D. W. P. Amaral , T. Aralis , T. Aramaki , I. J. Arnquist , I. Ataee Langroudy , E. Azadbakht , S. Banik , D. Barker , C. Bathurst , D. A. Bauer , L. V. S. Bezerra , R. Bhattacharyya , T. Binder , M. A. Bowles , P. L. Brink , R. Bunker , B. Cabrera , R. Calkins , R. A. Cameron , C. Cartaro , D. G. Cerdeño , Y. -Y. Chang , M. Chaudhuri , R. Chen , N. Chott , J. Cooley , H. Coombes , J. Corbett , P. Cushman , F. De Brienne , M. L. di Vacri , M. D. Diamond , E. Fascione , E. Figueroa-Feliciano , C. W. Fink , K. Fouts , M. Fritts , G. Gerbier , R. Germond , M. Ghaith , S. R. Golwala , H. R. Harris , N. Herbert , B. A. Hines , M. I. Hollister , Z. Hong , E. W. Hoppe , L. Hsu , M. E. Huber , V. Iyer , D. Jardin , A. Jastram , V. K. S. Kashyap , M. H. Kelsey , A. Kubik , N. A. Kurinsky , R. E. Lawrence , A. Li , B. Loer , E. Lopez Asamar , P. Lukens , D. MacDonell , D. B. MacFarlane , R. Mahapatra , V. Mandic , N. Mast , A. J. Mayer , H. Meyer zu Theenhausen , É. M. Michaud , E. Michielin , N. Mirabolfathi , B. Mohanty , J. D. Morales Mendoza , S. Nagorny , J. Nelson , H. Neog , V. Novati , J. L. Orrell , S. M. Oser , W. A. Page , P. Pakarha , R. Partridge , R. Podviianiuk , F. Ponce , S. Poudel , M. Pyle , W. Rau , E. Reid , R. Ren , T. Reynolds , A. Roberts , A. E. Robinson , T. Saab , B. Sadoulet , J. Sander , A. Sattari , R. W. Schnee , S. Scorza , B. Serfass , D. J. Sincavage , C. Stanford , J. Street , D. Toback , R. Underwood , S. Verma , A. N. Villano , B. von Krosigk , S. L. Watkins , L. Wills , J. S. Wilson , M. J. Wilson , J. Winchell , D. H. Wright , S. Yellin , B. A. Young , T. C. Yu , E. Zhang , H. G. Zhang , X. Zhao , L. Zheng , J. Camilleri , Yu. G. Kolomensky , S. Zuber

In the absence of direct accelerator data to constrain particle models, and given existing astrophysical uncertainties associated with the phase space distribution of WIMP dark matter in our galactic halo, extracting information on…

High Energy Physics - Phenomenology · Physics 2018-01-26 Lawrence M. Krauss , Jayden L. Newstead

Dark Matter (DM) is generally assumed to be massive, cold and collisionless from the structure formation point of view. A more correct statement however is that DM indeed experiences collisional damping, but on a scale which is supposed to…

Astrophysics · Physics 2007-05-23 C. Boehm , H. Mathis , J. Devriendt , J. Silk

We update the bounds on fermions with electric charge $\epsilon e$ and mass $m_\epsilon$. For $m_\epsilon\lsim m_e$ we find $10^{-15}\lsim\epsilon<1$ is excluded by laboratory experiments, astrophysics and cosmology. For larger masses, the…

High Energy Physics - Phenomenology · Physics 2010-04-06 Sacha Davidson , Steen Hannestad , Georg Raffelt

We present the latest results from the search for light dark matter particle interactions with the DarkSide-50 dual-phase liquid argon time projection chamber. This analysis, based on the ionization signal only, improves the existing limits…

High Energy Physics - Experiment · Physics 2024-07-18 D. Franco

Current cosmological models and data suggest the existence of a cold Dark Matter (DM) component, however the nature of DM particles remains unknown. A favored candidate for DM is a Weakly Interacting Massive Particle (WIMP) in the mass…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Benjamin Zitzer

We report results of a search for light weakly interacting massive particle (WIMP) dark matter from the CDEX-1 experiment at the China Jinping Underground Laboratory (CJPL). Constraints on WIMP-nucleon spin-independent (SI) and…

We discuss possibility to detect spin 0, 1 and 1/2 dark matter (DM) at future $e^{+} e^{-}$ colliders. The models considered here are simple, consistent and renormalizable field theories, that provide correct DM abundance and satisfy direct…

High Energy Physics - Phenomenology · Physics 2020-08-26 Bohdan Grzadkowski , Michal Iglicki , Krzysztof Mekala , Aleksander Filip Zarnecki