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We report on a search for weakly interacting massive particle (WIMP) dark matter (DM) via elastic DM-xenon-nucleus interactions in the XENONnT experiment. We combine datasets from the first and second science campaigns resulting in a total…

High Energy Physics - Experiment · Physics 2025-12-18 E. Aprile , J. Aalbers , K. Abe , S. Ahmed Maouloud , L. Althueser , B. Andrieu , E. Angelino , D. Antón Martin , S. R. Armbruster , F. Arneodo , L. Baudis , M. Bazyk , L. Bellagamba , R. Biondi , A. Bismark , K. Boese , A. Brown , G. Bruno , R. Budnik , C. Cai , C. Capelli , J. M. R. Cardoso , A. P. Cimental Chávez , A. P. Colijn , J. Conrad , J. J. Cuenca-García , V. D'Andrea , L. C. Daniel Garcia , M. P. Decowski , A. Deisting , C. Di Donato , P. Di Gangi , S. Diglio , K. Eitel , S. el Morabit , A. Elykov , A. D. Ferella , C. Ferrari , H. Fischer , T. Flehmke , M. Flierman , D. Fuchs , W. Fulgione , C. Fuselli , P. Gaemers , R. Gaior , F. Gao , S. Ghosh , R. Giacomobono , F. Girard , R. Glade-Beucke , L. Grandi , J. Grigat , H. Guan , M. Guida , P. Gyorgy , R. Hammann , A. Higuera , C. Hils , L. Hoetzsch , N. F. Hood , M. Iacovacci , Y. Itow , J. Jakob , F. Joerg , Y. Kaminaga , M. Kara , P. Kavrigin , S. Kazama , P. Kharbanda , M. Kobayashi , D. Koke , K. Kooshkjalali , A. Kopec , H. Landsman , R. F. Lang , L. Levinson , I. Li , S. Li , S. Liang , Z. Liang , Y. -T. Lin , S. Lindemann , M. Lindner , K. Liu , M. Liu , J. Loizeau , F. Lombardi , J. Long , J. A. M. Lopes , G. M. Lucchetti , T. Luce , Y. Ma , C. Macolino , J. Mahlstedt , A. Mancuso , L. Manenti , F. Marignetti , T. Marrodán Undagoitia , K. Martens , J. Masbou , S. Mastroianni , A. Melchiorre , J. Merz , M. Messina , A. Michael , K. Miuchi , A. Molinario , S. Moriyama , K. Morå , Y. Mosbacher , M. Murra , J. Müller , K. Ni , U. Oberlack , B. Paetsch , Y. Pan , Q. Pellegrini , R. Peres , C. Peters , J. Pienaar , M. Pierre , G. Plante , T. R. Pollmann , L. Principe , J. Qi , J. Qin , D. Ramírez García , M. Rajado , A. Ravindran , A. Razeto , R. Singh , L. Sanchez , J. M. F. dos Santos , I. Sarnoff , G. Sartorelli , J. Schreiner , P. Schulte , H. Schulze Eißing , M. Schumann , L. Scotto Lavina , M. Selvi , F. Semeria , P. Shagin , S. Shi , J. Shi , M. Silva , H. Simgen , A. Stevens , C. Szyszka , A. Takeda , Y. Takeuchi , P. -L. Tan , D. Thers , G. Trinchero , C. D. Tunnell , F. Tönnies , K. Valerius , S. Vecchi , S. Vetter , F. I. Villazon Solar , G. Volta , C. Weinheimer , M. Weiss , D. Wenz , C. Wittweg , V. H. S. Wu , Y. Xing , D. Xu , Z. Xu , M. Yamashita , J. Yang , L. Yang , J. Ye , L. Yuan , G. Zavattini , Y. Zhao , M. Zhong

The H.E.S.S. array of Cherenkov telescopes has performed, from 2004 to 2007, a survey of the inner Galactic plane at photon energies above 100 GeV. About 400 hours of data have been accumulated in the region between -30 and +60 degrees in…

Astrophysics · Physics 2009-09-29 HESS Collaboration , F Aharonian , G. Bertone

We present updated constraints on 'light' Dark Matter (DM) particles with masses between 1 MeV and 5 GeV. In this range, we can expect DM-produced $e^\pm$ pairs to up-scatter low-energy ambient photons in the Milky Way via the Inverse…

High Energy Physics - Phenomenology · Physics 2024-01-17 Jordan Koechler

A search is presented for new high-mass resonances decaying into electron or muon pairs. The search uses proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the CMS experiment at the LHC in 2016, corresponding to…

High Energy Physics - Experiment · Physics 2018-07-05 CMS Collaboration

We search for nuclear recoil signals of dark matter models with a light mediator in PandaX-II, a direct detection experiment in China Jinping underground Laboratory. Using data collected in 2016 and 2017 runs, corresponding to a total…

We consider a simple class of models in which the dark matter, X, is coupled to a new gauge boson, phi, with a relatively low mass (m_phi \sim 100 MeV-3 GeV). Neither the dark matter nor the new gauge boson have tree-level couplings to the…

High Energy Physics - Phenomenology · Physics 2013-05-30 Dan Hooper , Neal Weiner , Wei Xue

A new frontier in the search for dark matter (DM) is based on the idea of detecting the decoherence caused by DM scattering against a mesoscopic superposition of normal matter. Such superpositions are uniquely sensitive to very small…

Quantum Physics · Physics 2017-08-02 C. Jess Riedel , Itay Yavin

Recent observations by the CoGeNT collaboration (as well as long standing observations by DAMA/LIBRA) suggest the presence of a $\sim 5$-10 GeV dark matter particle with a somewhat large elastic scattering cross section with nucleons…

High Energy Physics - Phenomenology · Physics 2011-10-13 Alexander V. Belikov , John F. Gunion , Dan Hooper , Tim M. P. Tait

Sterile neutrinos with masses in the keV range are well-motivated extensions to the Standard Model that could explain the observed neutrino masses while also making up the dark matter (DM) of the Universe. If sterile neutrinos are DM then…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-04 Joshua W. Foster , Marius Kongsore , Christopher Dessert , Yujin Park , Nicholas L. Rodd , Kyle Cranmer , Benjamin R. Safdi

"Dark quark nuggets", a lump of dark quark matter, can be produced in the early universe for a wide range of confining gauge theories and serve as a macroscopic dark matter candidate. The two necessary conditions, a nonzero dark baryon…

High Energy Physics - Phenomenology · Physics 2019-11-26 Yang Bai , Andrew J. Long , Sida Lu

Existence of dark matter indicates the presence of unknown fundamental laws of nature. Ultralight axion-like particles are well-motivated dark matter candidates, emerging naturally from theories of physics at ultrahigh energies. We report…

High Energy Physics - Experiment · Physics 2021-01-11 Alexander V. Gramolin , Deniz Aybas , Dorian Johnson , Janos Adam , Alexander O. Sushkov

We consider an extension of Zee-Babu model to explain the smallness of neutrino masses. (1) We extend the lepton number symmetry of the original model to local $B-L$ symmetry. (2) We introduce three Dirac dark matter candidates with…

High Energy Physics - Phenomenology · Physics 2015-05-01 Seungwon Baek

Dark matter which scatters off ordinary matter with a relatively large cross section cannot be constrained by deep underground WIMP experiments, due to the energy loss of DM along its path. However, for a sufficiently large cross section,…

High Energy Physics - Phenomenology · Physics 2021-12-02 Xingchen Xu , Glennys R. Farrar

In this article, I summarize and discuss the body of evidence which has accumulated in favor of dark matter in the form of approximately 10 GeV particles. This evidence includes the spectrum and angular distribution of gamma rays from the…

Cosmology and Nongalactic Astrophysics · Physics 2012-01-09 Dan Hooper

It appears that the majority of rapidly-, well-localized gamma-ray bursts with undetected, or dark, optical afterglows, or `dark bursts' for short, occur in clouds of size R > 10L_{49}^{1/2} pc and mass M > 3x10^5L_{49} M_{sun}, where L is…

Astrophysics · Physics 2009-11-07 Daniel E. Reichart , Paul A. Price

Cold interstellar gas clouds provide an exciting new method to discover dark matter. Their immense size makes them uniquely sensitive to interactions from the heaviest, most rarefied dark matter models. Using gas cloud observations, we…

High Energy Physics - Phenomenology · Physics 2021-07-07 Amit Bhoonah , Joseph Bramante , Sarah Schon , Ningqiang Song

Direct detection experiments relying on nuclear recoil signatures lose sensitivity to sub-GeV dark matter for typical galactic velocities. This sensitivity is recovered if there exists another source of flux with higher momenta. Such an…

High Energy Physics - Phenomenology · Physics 2020-03-03 James Alvey , Miguel Campos , Malcolm Fairbairn , Tevong You

Dark matter particles were suggested to have an electric charge smaller than the elementary charge unit $e$. The behavior of such a medium is similar to a collisionless plasma. In this paper, we set new stringent constraints on the charge…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-03 Mikhail V. Medvedev , Abraham Loeb

"Dark Photons", light new vector particles V kinetically mixed with the photon, are a frequently considered extension of the Standard Model. For masses below 10 keV they are emitted from the solar interior. In the limit of small mass m_V…

High Energy Physics - Phenomenology · Physics 2013-09-26 Haipeng An , Maxim Pospelov , Josef Pradler

We extract at redshift z=0 a Milky Way sized object including gas, stars and dark matter (DM) from a recent, high-resolution cosmological N-body simulation with baryons. Its resolution is sufficient to witness the formation of a rotating…

Astrophysics of Galaxies · Physics 2014-11-20 F. -S. Ling , E. Nezri , E. Athanassoula , R. Teyssier