Results 11 to 20 of about 4,173,231 (371)

Modified Dark Matter: Relating Dark Energy, Dark Matter and Baryonic Matter [PDF]

International Journal of Modern Physics D, 2017
Modified dark matter (MDM) is a phenomenological model of dark matter, inspired by gravitational thermodynamics. For an accelerating Universe with positive cosmological constant ($\Lambda$), such phenomenological considerations lead to the emergence of a
Edmonds, Douglas, Farrah, Duncan, Minic, Djordje, Ng, Y. Jack, Takeuchi, Tatsu   +4 more
core   +7 more sources

Dark Energy and Dark Matter [PDF]

Physics Letters B, 2003
It is a puzzle why the densities of dark matter and dark energy are nearly equal today when they scale so differently during the expansion of the universe. This conundrum may be solved if there is a coupling between the two dark sectors. In this paper we
A. Riotto, Amendola, Amendola, Amendola, Anderson, Carlstrom, Carroll, Casas, D. Comelli, de Bernardis, Ellis, Ellis, Ellis, Ellis, Fornengo, Gasperini, Giudice, Joyce, Joyce, Kolb, M. Pietroni, Nihei, Olive, Olive, Peebles, Perlmutter, Pietroni, Riess, Salati, Stompor, Tocchini-Valentini   +30 more
core   +6 more sources

Dark Matter and Dark Radiation [PDF]

Physical Review D, 2008
We explore the feasibility and astrophysical consequences of a new long-range U(1) gauge field ("dark electromagnetism") that couples only to dark matter, not to the Standard Model.
E. Kolb, L. B. Okun, L. B. Okun, Lotty Ackerman, Marc Kamionkowski, Matthew R. Buckley, P. J. E. Peebles, Sean M. Carroll   +7 more
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Dark Higgs dark matter [PDF]

Physical Review D, 2021
A new $U(1)$ dark gauge group coupled to the Standard Model (SM) via the kinetic mixing portal provides a natural dark matter candidate in the form of the Higgs field, $h_d$, responsible for generating the mass of the dark photon, $ _d$. We show that the condition $m_{h_d}\leq m_{ _d}$, together with smallness of the kinetic mixing parameter ...
Maxim Pospelov, Cristina Mondino, Cristina Mondino, Oren Slone, Joshua T. Ruderman   +4 more
openaire   +3 more sources

GRB 181110A: Constraining the Jet Structure, Circumburst Medium and the Initial Lorentz Factor

Universe, 2022
The afterglow data of gamma ray bursts (GRBs) can be used to constrain the physical properties of the fireball (e.g., the jet structure and opening angle) and the circumburst medium.
Song Han, Xinyu Li, Luyao Jiang, Zhiping Jin, Haoning He, Yuanzhu Wang, Daming Wei   +6 more
doaj   +1 more source

Primordial black holes as a dark matter candidate [PDF]

Journal of Physics G: Nuclear and Particle Physics, 2020
The detection of gravitational waves from mergers of tens of Solar mass black hole binaries has led to a surge in interest in Primordial Black Holes (PBHs) as a dark matter candidate.
A. Green, B. Kavanagh
semanticscholar   +1 more source

Direct limits for scalar field dark matter from a gravitational-wave detector [PDF]

Nature, 2021
The nature of dark matter remains unknown to date, although several candidate particles are being considered in a dynamically changing research landscape1.
H. Grote, Sander M. Vermeulen, P. Relton, V. Raymond, C. Affeldt, F. Bergamin, A. Bisht, M. Brinkmann, K. Danzmann, S. Doravari, V. Kringel, J. Lough, H. Lueck, M. Mehmet, N. Mukund, S. Nadji, E. Schreiber, B. Sorazu, K. Strain, H. Vahlbruch, M. Weinert, B. Willke   +21 more
semanticscholar   +1 more source

An Unsupervised Machine Learning Method for Electron–Proton Discrimination of the DAMPE Experiment

Universe, 2022
Galactic cosmic rays are mostly made up of energetic nuclei, with less than 1% of electrons (and positrons). Precise measurement of the electron and positron component requires a very efficient method to reject the nuclei background, mainly protons.
Zhihui Xu, Xiang Li, Mingyang Cui, Chuan Yue, Wei Jiang, Wenhao Li, Qiang Yuan   +6 more
doaj   +1 more source

A quantum enhanced search for dark matter axions [PDF]

Nature, 2020
The manipulation of quantum states of light1 holds the potential to enhance searches for fundamental physics. Only recently has the maturation of quantum squeezing technology coincided with the emergence of fundamental physics searches that are limited ...
K. Backes, D. Palken, S. Kenany, B. Brubaker, S. Cahn, A. Droster, G. Hilton, Sumit Ghosh, H. Jackson, S. Lamoreaux, A. Leder, K. Lehnert, S. Lewis, M. Malnou, R. Maruyama, N. Rapidis, M. Simanovskaia, Sukhman Singh, D. Speller, I. Urdinaran, L. Vale, E. C. V. Assendelft, K. Bibber, Hong-song Wang   +23 more
semanticscholar   +1 more source

Projected WIMP sensitivity of the XENONnT dark matter experiment [PDF]

Journal of Cosmology and Astroparticle Physics, 2020
XENONnT is a dark matter direct detection experiment, utilizing 5.9 t of instrumented liquid xenon, located at the INFN Laboratori Nazionali del Gran Sasso.
T. X. C. E. Aprile, J. Aalbers, F. Agostini, M. Alfonsi, L. Althueser, F. Amaro, V. C. Antochi, E. Angelino, J. Angevaare, F. Arneodo, D. Barge, L. Baudis, B. Bauermeister, L. Bellagamba, M. Benabderrahmane, T. Berger, A. Brown, E. Brown, S. Bruenner, G. Bruno, R. Budnik, C. Capelli, J. Cardoso, D. Cichon, B. Cimmino, M. Clark, D. Coderre, A. Colijn, J. Conrad, J. Cussonneau, M. Decowski, A. Depoian, P. Gangi, A. Giovanni, R. D. Stefano, S. Diglio, A. Elykov, G. Eurin, A. Ferella, W. Fulgione, P. Gaemers, R. Gaior, M. Galloway, F. Gao, L. Grandi, C. Hasterok, C. Hils, K. Hiraide, L. Hoetzsch, J. Howlett, M. Iacovacci, Y. Itow, F. Joerg, N. Kato, S. Kazama, M. Kobayashi, G. Koltman, A. Kopec, H. Landsman, R. Lang, L. Levinson, Q. Lin, S. Lindemann, M. Lindner, F. Lombardi, J. Long, J. Lopes, E. L. Fune, C. Macolino, J. Mahlstedt, A. Mancuso, L. Manenti, A. Manfredini, F. Marignetti, T. M. Undagoitia, K. Martens, J. Masbou, D. Masson, S. Mastroianni, M. Messina, K. Miuchi, K. Mizukoshi, A. Molinario, K. Moraa, S. Moriyama, Y. Mosbacher, M. Murra, J. Naganoma, K. Ni, U. Oberlack, K. Odgers, J. Palacio, B. Pelssers, R. Peres, J. Pienaar, V. Pizzella, G. Plante, J. Qin, H. Qiu, D. Garc'ia, S. Reichard, A. Rocchetti, N. Rupp, J. Santos, G. Sartorelli, N. vSarvcevi'c, M. Scheibelhut, J. Schreiner, D. Schulte, M. Schumann, L. Lavina, M. Selvi, F. Semeria, P. Shagin, E. Shockley, M. Silva, H. Simgen, A. Takeda, C. Therreau, D. Thers, F. Toschi, G. Trinchero, C. Tunnell, K. Valerius, M. Vargas, G. Volta, H. Wang, Y. Wei, C. Weinheimer, M. Weiss, D. Wenz, C. Wittweg, Z. Xu, M. Yamashita, J. Ye, G. Zavattini, Y. Zhang, T. Zhu, J. Zopounidis   +138 more
semanticscholar   +1 more source