Results 61 to 70 of about 21,978 (196)

Cancellation mechanism of dark matter direct detection in Higgs-portal and vector-portal models

Journal of High Energy Physics, 2022
We present two alternative proofs for the cancellation mechanism in the U(1) symmetric pseudo-Nambu-Goldstone-Boson Dark Matter (pNGB DM) model. They help us to have a better understanding of the mechanism from multi-angle, and inspire us to propose some
Chengfeng Cai, Yu-Pan Zeng, Hong-Hao Zhang   +2 more
doaj   +1 more source

Hydromagnesite Precipitation in an Ultramafic‐Hosted Alkaline Lake: Insights From Lake Salda for Jezero Crater, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Lake Salda (SW Turkey) is one of the most compelling terrestrial analogs for Jezero Crater on Mars due to its highly alkaline, Mg‐rich waters and hydromagnesite‐forming microbialites. This study integrates hydrochemical measurements, saturation‐index modeling, SEM–TEM imaging, and X‐ray diffraction (XRD) analysis to disentangle the biotic and ...
Mirosław Słowakiewicz, Mario Borrelli, Gürçay Kıvanç Akyıldız, Marek Szczerba, Ezher Tagliasacchi, Edoardo Perri   +5 more
wiley   +1 more source

Dark matter annihilation into leptons through gravity portals

Journal of High Energy Physics, 2021
Dark matter (DM) constitutes 85% of the matter in the Universe. However, its specific particle property is still unclear. The fundamentals of DM particles subject to gravitational interaction, and that the lepton excess in cosmic rays may originate from ...
Xudong Sun, Ben-Zhong Dai
doaj   +1 more source

Gravitino dark matter in brane-world cosmology [PDF]

, 2007
The gravitino dark matter hypothesis in the brane cosmology is studied. The theoretical framework is the CMSSM for particle physics and RS II brane model for gravity.
Aliev A N, Brandenburg A, Brown R A, CDF Collaboration, Cerdeno D G, Covi L, Djouadi A Kneur J L Moultaka G, Edsjo J, Grigoris Panotopoulos, Heinemeyer S, Kiritsis E, Kiritsis E, Kofinas G, Panotopoulos G, Peccei R D, Pradler J Steffen F D, Roszkowski L, Spergel D N, Steffen F D   +18 more
core   +3 more sources

Ryugu reference project: Recommendations from the measurement definition team

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.
Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama, Guillaume Avice, Henner Busemann, Nicolas Dauphas, Daniel P. Glavin, Ashley J. King, Thorsten Kleine, Katharina Lodders, Frederic Moynier, Maria Schönbächler, Yoshinori Takano, Kun Wang, Hikaru Yabuta, Yuma Enokido, Ryota Fukai, Shogo Tachibana, Tomohiro Usui   +16 more
wiley   +1 more source

Constraints on axion-like particles with the Perseus Galaxy Cluster with MAGIC [PDF]

Physics of the Dark Universe
Axion-like particles (ALPs) are pseudo-Nambu-Goldstone bosons that emerge in various theories beyond the standard model. These particles can interact with high-energy photons in external magnetic fields, influencing the observed gamma-ray spectrum.
M. Abe, S. Abe, J. Abhir, V. Acciari, I. Agudo, T. Aniello, S. Ansoldi, L. A. Antonelli, A. Engels, C. Arcaro, M. Artero, K. Asano, D. Baack, A. Babi'c, A. Baquero, U. D. Almeida, J. Barrio, I. Batkovi'c, J. Baxter, J. B. Gonz'alez, W. Bednarek, E. Bernardini, J. Bernete, A. Berti, J. Besenrieder, C. Bigongiari, A. Biland, O. Blanch, G. Bonnoli, vZ. Bovsnjak, I. Burelli, G. Busetto, A. Campoy-Ordaz, A. Carosi, R. Carosi, M. Carretero-Castrillo, A. Castro-Tirado, G. Ceribella, Y. Chai, A. Cifuentes, S. Cikota, E. Colombo, J. Contreras, J. Cortina, S. Covino, G. D'Amico, V. D’Elia, P. D. Vela, F. Dazzi, A. D. Angelis, B. Lotto, A. Popolo, J. Delgado, C. Mendez, D. Depaoli, F. Pierro, L. Venere, A. Donini, D. Dorner, M. Doro, D. Elsaesser, G. Emery, J. Escudero, L. Fariña, A. Fattorini, L. Foffano, L. Font, S. Fukami, Y. Fukazawa, R. L'opez, M. Garczarczyk, S. Gasparyan, M. Gaug, J. Paiva, N. Giglietto, F. Giordano, P. Gliwny, N. Godinovi'c, R. Grau, D. Green, J. Green, D. Hadasch, A. Hahn, T. Hassan, L. Heckmann, J. Herrera, D. Hrupec, M. Hutten, R. Imazawa, T. Inada, R. Iotov, K. Ishio, I. Mart'inez, J. Jormanainen, D. Kerszberg, G. Kluge, Y. Kobayashi, P. M. Kouch, H. Kubo, J. Kushida, M. L'ainez, A. Lamastra, F. Leone, E. Lindfors, L. Linhoff, S. Lombardi, F. Longo, R. L'opez-Coto, M. L'opez-Moya, A. L'opez-Oramas, S. Loporchio, A. Lorini, B. Fraga, P. Majumdar, M. Makariev, G. Maneva, N. Mang, M. Manganaro, S. Mangano, K. Mannheim, M. Mariotti, M. Mart'inez, M. Mart'inez-Chicharro, A. Mas-Aguilar, D. Mazin, S. Menchiari, S. Mender, D. Miceli, T. Miener, J. Miranda, R. Mirzoyan, M. Gonz'alez, E. Molina, H. A. Mondal, A. Moralejo, D. Morcuende, T. Nakamori, C. Nanci, L. Nava, V. Neustroev, L. Nickel, M. Rosillo, C. Nigro, L. Nikoli'c, K. Nilsson, K. Nishijima, T. Ekoume, K. Noda, S. Nozaki, Y. Ohtani, A. Okumura, J. Otero-Santos, S. Paiano, M. Palatiello, D. Paneque, R. Paoletti, J. Paredes, D. Pavlovi'c, M. Persic, M. Pihet, G. Pirola, F. Podobnik, P. Moroni, E. Prandini, G. Principe, C. Priyadarshi, W. Rhode, M. Rib'o, J. Rico, C. Righi, N. Sahakyan, T. Saito, K. Satalecka, F. Saturni, B. Schleicher, K. Schmidt, F. Schmuckermaier, J. L. Schubert, T. Schweizer, A. Sciaccaluga, J. Sitarek, V. Sliusar, D. Sobczynska, A. Spolon, A. Stamerra, J. Strivskovi'c, D. Strom, M. Strzys, Y. Suda, S. Suutarinen, H. Tajima, M. Takahashi, R. Takeishi, F. Tavecchio, P. Temnikov, K. Terauchi, T. Terzi'c, M. Teshima, L. Tosti, S. Truzzi, A. Tutone, S. Ubach, J. Scherpenberg, M. Acosta, S. Ventura, V. Verguilov, I. Viale, C. Vigorito, V. Vitale, I. Vovk, R. Walter, M. Will, T. Yamamoto, J. I. F. C. Research, T. U. O. Tokyo, Kashiwa, 277-8582 Chiba, Japan., E. Zurich, CH-8093 Zurich, Switzerland., Instituto de Astrof'isica de Canarias, D. Astrof'isica, U. L. Laguna, E-38200, L. Laguna, Tenerife, Spain., Instituto de Astrof'isica de Andaluc'ia-CSIC, Glorieta de la Astronom'ia sn, 18008, Granada, National Centre for Radio Astrophysics, I-00136 Rome, Italy, U. Udine, I. Trieste, I. Udine, M. F. Physik, D. Garching, Germany, U. Padova, Infn, I-35131 Padova, Institut de F'isica d'Altes Energies, T. Z. F. O. Science, Technology, E-08193 Bellaterra, Technische Universitat Dortmund, D. Dortmund, C. Zagreb, Faculty of Electrical Engineering, Computing, 10000 Zagreb, Croatia., I. Institute, E. Department, U. Madrid, E. Madrid, Centro Brasileiro de Pesquisas F'isicas, 22290-180 Urca, R. Janeiro, Brazil, U. Lodz, F. O. Physics, Applied Informatics, D. O. Astrophysics, 9. Lodz, Poland, Centro de Investigaciones Energ'eticas, Medioambientales y Tecnol'ogicas, Departament de F'isica, CERES-IEEC, U. Barcelona, U. Pisa, I. Pisa, I. Pisa, U. Barcelona, Iccub, IEEC-UB, E. Barcelona, Department for Physics, Universityof Bergen, Norway., I. Catania, D. Astronomia, U. Catania, I. Catania, I. Torino, U. Torino, I. Torino, I. Bari, D. Bari, I. Bari, U. Wurzburg, D-97074 Wurzburg, U. Geneva, 16 Chemind'Ecogia, CH-1290 Versoix, Japanese Magic Group Physics Program, Graduate School of Science, Engineering, H. University, 739-8526 Hiroshima, D. Elektronen-Synchrotron, D. Zeuthen, Armenian Magic Group ICRANet-Armenia, 0019 Yerevan, Armenia, C. Split, M. Engineering, Naval Architecture, 21000 Split, Croatia Croatian Magic Group Josip Juraj Strossmayer Unive Osijek, D. Physics, 31000 Osijek, Finnish Magic Consortium Finnish Centre of Astronomy with Eso, Astronomy, U. Turku, F. Turku, Finland., J. D. O. Physics, T. University, Hiratsuka, 259-1292 Kanagawa, U. Siena, I-53100 Siena, S. S. I. O. Physics, A. C. O. L. P. Institute, Kolkata 700064, West Bengal, India., Inst. for Nucl. Research, Nucl. Energy, B. A. O. Sciences, BG-1784 Sofia, Bulgaria., C. Rijeka, 51000 Rijeka, Yamagata University, Yamagata 990-8560, Finnish Magic Group Space Physics, A. Unit, U. Oulu, F. Oulu, Japanese Magic Group Chiba University, Icehap, 277-8582 Chiba, J. I. F. C. Research, Kobayashi-Maskawa Institute for the Origin of Particles, the Universe, N. University, 464-6801 Nagoya, Kyoto University, 606-8502 Kyoto, I. Perugia, I. Perugia, I. Vergata, I. Roma, K. University, Kobe, Hyogo 658-8501, A. M. C. F. Astrophysics, Romé, also at Port d'Informaci'o Cient'ifica, also at Institute for Astro-, P. Physics, U. Innsbruck, A. Innsbruck, M Austria, A. D. O. Physics, U. Oslo, A. N. D. D. Fisica, U. Trieste, I. Trieste, D-80805 Munchen, also at Inaf Padova   +376 more
semanticscholar   +1 more source

Group theoretic approach to fermion production

Journal of High Energy Physics, 2019
We propose a universal group theoretic description of the fermion production through any type of interaction to scalar or pseudo-scalar. Our group theoretic approach relies on the group SU(2) × U(1), corresponding to the freedom in choosing ...
Ui Min, Minho Son, Han Gyeol Suh
doaj   +1 more source

A model of interacting dark matter and dark radiation for H0 and σ 8 tensions

Journal of High Energy Physics, 2021
We present a model describing the dark sector (DS) featured by two interactions remaining efficient until late times in the matter-dominated era after recombination: the interaction among dark radiations (DR), and the interaction between a small fraction
Gong jun Choi, Tsutomu T. Yanagida, Norimi Yokozaki   +2 more
doaj   +1 more source

Primordial Neutrinos: Hot in SM-GR-$\Lambda$-CDM, Cold in SM-LGT

, 2018
We replace general relativity (GR) and the cosmological constant ($\Lambda$) in the standard cosmology (SM-GR-$\Lambda$-CDM) with a Lorentz gauge theory of gravity (LGT) and show that the standard model (SM) neutrinos can be the cold dark matter (CDM ...
Borzou, Ahmad
core   +1 more source

Fifth forces and discrete symmetry breaking [PDF]

, 1954
Modifications of general relativity often involve coupling additional scalar fields to the Ricci scalar, leading to scalar-tensor theories of Brans-Dicke type.
Millington, Peter
core   +6 more sources