Results 31 to 40 of about 2,741,953 (182)

DAMA/LIBRA-phase1 results and perspectives of the phase2

EPJ Web of Conferences, 2016
The DAMA/LIBRA experiment (∼ 250 kg of highly radio-pure NaI(Tl)) is running deep underground at the Gran Sasso National Laboratory (LNGS) of the I.N.F.N.
Bernabei R., Belli P., Cappella F., Caracciolo V., Cerulli R., Dai C.J., d'Angelo A., d'Angelo S., Marco A. Di, He H.L., Incicchitti A., Kuang H.H., Ma X.H., Montecchia F., Sheng X.D., Wang R.G., Ye Z.P.   +16 more
doaj   +1 more source

Testing Relativity with High-Energy Astrophysical Neutrinos [PDF]

Phys.Rev.D89:043005,2014, 2013
The recent observation of high-energy astrophysical neutrinos can be used to constrain violations of Lorentz invariance emerging from a quantum theory of gravity. We perform threshold and Cherenkov analyses that improve existing bounds by factors ranging from about a million to 10^{20}.
arxiv   +1 more source

Vacuum stability and radiative symmetry breaking of the scale-invariant singlet extension of type II seesaw model

European Physical Journal C: Particles and Fields, 2023
The questions of the origin of electroweak symmetry breaking and neutrino mass are two major puzzles in particle physics. Neutrino mass generation requires new physics beyond the Standard Model and also suggests reconsideration of physics of symmetry ...
Bayu Dirgantara, Kristjan Kannike, Warintorn Sreethawong   +2 more
doaj   +1 more source

High Energy Astrophysics [PDF]

2013, Frontiers of Physics, 8(6): 605-608, 2014
High energy astrophysics is one of the most active branches in contemporary astrophysics. It studies astrophysical objects that emit X-ray and gamma-ray photons, such as accreting super-massive and stellar-size black holes, and various species of neutron stars.
arxiv   +1 more source

Constraining the Thickness of the Galactic Halo through Cosmic-Ray Anisotropy Using the Spatial-Dependent-Propagation Model

Universe, 2023
The spatial-dependent-propagation (SDP) model with a nearby source works well to reproduce the coevolving features of both cosmic-ray (CR)-nuclei spectra and anisotropy. However, it is well known that the Sun is actually deviating from the galactic disk.
Bing-Qiang Qiao, Yu-Hua Yao, Wei Liu, Qiang Yuan, Xiao-Jun Bi, Hong-Bo Hu, Yi-Qing Guo   +6 more
doaj   +1 more source

A deep study of the high–energy transient sky

Experimental astronomy (Print), 2021
The coming decades will establish the exploration of the gravitational wave (GW) Universe over a broad frequency range by ground and space interferometers.
C. Guidorzi, F. Frontera, G. Ghirlanda, G. Stratta, C. Mundell, E. Virgilli, P. Rosati, E. Caroli, L. Amati, E. Pian, S. Kobayashi, G. Ghisellini, Chris L. Fryer, M. Valle, R. Margutti, M. Marongiu, R. Martone, R. Campana, F. Fuschino, C. Labanti, M. Orlandini, J. Stephen, S. Brandt, R. Silva, P. Laurent, R. Mochkovitch, E. Bozzo, R. Ciolfi, L. Burderi, T. Salvo   +29 more
semanticscholar   +1 more source

Catalog of 3 < z < 5.5 Quasar Candidates Selected among XMM-Newton Sources and Its Spectroscopic Verification

Frontiers in Astronomy and Space Sciences, 2017
We have compiled a catalog of 903 quasar candidates (including known quasars) at 3 < z < 5.5 selected among X-ray sources from the XMM-Newton serendipitous survey (3XMM-DR4 catalog).
Georgii Khorunzhev, Sergey Sazonov, Rodion Burenin, Maxim Eselevich   +3 more
doaj   +1 more source

Development of a Cherenkov Telescope for the Detection of Ultra-High Energy Neutrinos with EUSO-SPB2 and POEMMA [PDF]

International Conference on Rebooting Computing, 2019
The detection of astrophysical neutrinos by IceCube and the potential to constrain source models of ultra-high energy cosmic rays provide the motivation to develop instruments for the observation of neutrinos above $10^7$ GeV.
A. Otte, E. Gazda, E. Judd, J. Krizmanic, Evgeny Kutzenzov, O. R. Matamala, P. Reardon, Lawrence Rudnick Harvard-Smithsonian Center for Astrophysics, G. I. O. Technology, U. Berkley, Space Sciences Laboratory, U. Maryland, B. County, T. U. O. A. I. Huntsville, Center for X-ray Optics, C. Mines   +15 more
semanticscholar   +1 more source

High energy cosmic-rays: puzzles, models, and giga-ton neutrino telescopes [PDF]

Pramana 62 (2004) 483-496, 2003
The existence of cosmic rays of energies exceeding 10^20 eV is one of the mysteries of high energy astrophysics. The spectrum and the high energy to which it extends rule out almost all suggested source models. The challenges posed by observations to models for the origin of high energy cosmic rays are reviewed, and the implications of recent new ...
arxiv   +1 more source

Highlights of DAMA/LIBRA

EPJ Web of Conferences, 2016
The DAMA project develops and uses new/improved low background scintillation detectors to investigate the Dark Matter (DM) particle component(s) in the galactic halo and rare processes deep underground at the Gran Sasso National Laboratory (LNGS) of the ...
Bernabei R., Belli P., d’Angelo A., d’Angelo S., Di Marco A., Montecchia F., Incicchitti A., Cappella F., Caracciolo V., Cerulli R., Dai C.J., He H.L., Kuang H.H., Ma X.H., Sheng X.D., Wang R.G., Ye Z.P.   +16 more
doaj   +1 more source