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As ultra-high energy cosmic ray protons propagate through the universe, they undergo photo-meson interactions with the cosmic microwave background, generating the `cosmogenic' neutrino flux. If a substantial fraction of the cosmic ray…

Astrophysics · Physics 2011-02-16 Dan Hooper , Andrew Taylor , Subir Sarkar

Some fraction of the diffuse photon background is supposed to be linked to high-energy neutrinos by astrophysical mechanisms of production and electromagnetic cascades. This article presents a simulation study of axion-like particles (ALPs)…

High Energy Astrophysical Phenomena · Physics 2024-10-29 Kirill Riabtsev

Earth is constantly struck by radiation coming from the interstellar medium. The very low energy end of the spectrum is shielded by the geomagnetic field but charged particles with energies higher than the geomagnetic cutoff will penetrate…

Earth and Planetary Astrophysics · Physics 2014-10-28 Franciole Marinho , Laura Paulucci , Douglas Galante

Powerful outflows from active galactic nuclei (AGN) can significantly impact the gas reservoirs of their host galaxies. However, it is still unclear how these outflows can propagate from the very central regions of galaxies to their…

We compare the leading and next-to-leading order QCD predictions for the flux of atmospheric muons and neutrinos from decays of charmed particles. We find that the full NLO lepton fluxes can be approximated to within 10% by the Born--level…

High Energy Physics - Phenomenology · Physics 2011-07-19 Graciela Gelmini , Paolo Gondolo , Gabriele Varieschi

We present a suite of full hydrodynamical cosmological simulations that quantitatively address the impact of neutrinos on the (mildly non-linear) spatial distribution of matter and in particular on the neutral hydrogen distribution in the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Matteo Viel , Martin G. Haehnelt , Volker Springel

UV auroral emissions from giant planets are produced by extra-atmospheric energetic particles interacting with an atmosphere. They have been observed on Jupiter, Saturn and Uranus and should be present on Neptune. Even if the mechanisms are…

Instrumentation and Methods for Astrophysics · Physics 2025-07-08 J-Y. Chaufray , W. Dunn , L. N. Fletcher , L. Fossati , M. Galand , L. Gkouvelis , C. M. Jackmann , L. Lamy , L. Roth

Recent direct measurements of Galactic cosmic ray spectra by balloon/space-borne detectors reveal spectral hardenings of all major nucleus species at rigidities of a few hundred GV. The all-sky diffuse gamma-ray emissions measured by the…

High Energy Astrophysical Phenomena · Physics 2018-03-21 Yi-Qing Guo , Qiang Yuan

Fast neutrons from cosmic-ray muons are an important background to underground low energy experiments. The estimate of such background is often hampered by the difficulty of measuring and calculating neutron production with sufficient…

High Energy Physics - Experiment · Physics 2009-11-07 Y-F. Wang , V. Balic , G. Gratta , A. Fasso' , S. Roesler , A. Ferrari

Cosmic rays interacting with the Earth's atmosphere generate extensive air showers, which produce Cherenkov, fluorescence and radio emissions. These emissions are key signatures for detection by ground-based, sub-orbital, and…

High Energy Astrophysical Phenomena · Physics 2025-10-07 Diksha Garg , Laksha Pradip Das , Mary Hall Reno

First high-altitude observations of gravity wave (GW)-induced CO$_2$ density perturbations in the Martian thermosphere retrieved from NASA's NGIMS instrument on board the MAVEN satellite are presented and interpreted using the extended GW…

Earth and Planetary Astrophysics · Physics 2016-02-17 Erdal Yiğit , Scott L. England , Guiping Liu , Alexander S. Medvedev , Paul R. Mahaffy , Takeshi Kuroda , Bruce M. Jakosky

Prompt neutrino fluxes due to the interactions of high-energy cosmic rays with the Earth's atmosphere are backgrounds in the search for high-energy neutrinos of galactic or extra-galactic origin performed by Very Large Volume Neutrino…

High Energy Physics - Phenomenology · Physics 2016-02-29 M. V. Garzelli , S. Moch , G. Sigl

We present the LAGOVirtual Project: an ongoing project to develop platform to collaborate in the Large Aperture GRB Observatory (LAGO). This continental-wide observatory is devised to detect high energy (around 100 GeV) component of Gamma…

Computational Engineering, Finance, and Science · Computer Science 2009-12-15 R. Camacho , R. Chacon , G. Diaz , C. Guada , V. Hamar , H. Hoeger , A. Melfo , L. A. Nunez , Y. Perez , C. Quintero , M. Rosales , R. Torrens , the LAGO Collaboration

We present a new method for simulating cosmologies that contain massive particles with thermal free streaming motion, such as massive neutrinos or warm/hot dark matter. This method combines particle and fluid descriptions of the thermal…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-15 Arka Banerjee , Neal Dalal

Results are reported on the measurement of the atmospheric neutrino-induced muon flux at a depth of 2 kilometers below the Earth's surface from 1229 days of operation of the Sudbury Neutrino Observatory (SNO). By measuring the flux of…

High Energy Physics - Experiment · Physics 2012-08-27 SNO Collaboration

I discuss the effects of neutrino oscillations on high energy cosmic neutrinos which come from cosmologically distant astrophysical sources. I incorporate all the up-to-date constraints from the solar, atmospheric, reactor, accelerator data…

High Energy Physics - Phenomenology · Physics 2007-05-23 Osamu Yasuda

We perform the first direct consistency check between the recently measured proton spectrum at the knee by Large High Altitude Air Shower Observatory (LHAASO) and the collaboration's own high-precision mapping of Galactic diffuse gamma-ray…

High Energy Astrophysical Phenomena · Physics 2025-09-03 Luis Enrique Espinosa Castro , Francesco Lorenzo Villante , Vittoria Vecchiotti , Carmelo Evoli , Giulia Pagliaroli

Energetic primary cosmic rays entering the Earth's atmosphere generate flux of secondary particles including neutrinos. Muon neutrinos passed through the Earth and produced muons via the charged current reaction can be registered by…

High Energy Physics - Experiment · Physics 2009-09-15 A. Guskov

A dedicated cosmic muon Monte-Carlo event generator CMSCGEN has been developed for the CMS experiment. The simulation relies on parameterisations of the muon energy and the incidence angle, based on measured and simulated data of the cosmic…

High Energy Physics - Experiment · Physics 2011-07-05 Lars Sonnenschein

We calculate the contained and upward muon and shower fluxes due to neutrinos produced via dark matter annihilation or decay in the Galactic center. We consider dark matter models in which the dark matter particle is a gravitino, a…

High Energy Physics - Phenomenology · Physics 2010-12-24 Arif Emre Erkoca , Mary Hall Reno , Ina Sarcevic