161. Experimental bounds on sterile-active neutrino mixing anglesMihael Petač, 2015, master's thesis Abstract: Despite the success of the Standard Model in the last few decades, we know it is not complete. There is strong motivation for assuming the existence of additional heavy neutral leptons, which can account for active neutrino masses and possibly also have cosmological implications. In this work I consider the Standard Model with two neutral lepton singlets (sterile neutrinos) with degenerated masses in the range 20MeV - 2GeV. The constraints on the active-sterile neutrino mixing angles are evaluated based on recent neutrino oscillations data. Using these constraints the bounds from accelerator experiments are reanalyzed for the case of the considered model. Finally, the results are compared with cosmological constraints coming from Big Bang nucleosynthesis and the nMSM resonant leptogenesis.
Found in: ključnih besedah
Summary of found: ...Sterile neutrinos, Neutrino mixing, See-saw, High-Energy Physics - Phenomenology, High-Energy Physics - Experiments...
Keywords: Sterile neutrinos, Neutrino mixing, See-saw, High-Energy Physics - Phenomenology, High-Energy Physics - Experiments
Published: 01.10.2021; Views: 667; Downloads: 21
 Fulltext (1,93 MB) |
162. |
163. |
164. Testing effects of Lorentz invariance violation in the propagation of astroparticles with the Pierre Auger ObservatoryMarko Zavrtanik, Danilo Zavrtanik, Serguei Vorobiov, Samo Stanič, Jon Paul Lundquist, Andrej Filipčič, P. Abreu, Lukas Zehrer, 2022, original scientific article Found in: ključnih besedah
Keywords: cosmic ray experiments, ultra high energy, cosmic rays, physics of the early universe, Pierre Auger Observatory, Lorentz invariance violation effects
Published: 18.01.2022; Views: 513; Downloads: 15
 Fulltext (0,00 KB)
This document has many files! More...
|
165. Catalog of long-term transient sources in the first 10 yr of Fermi-LAT dataL. Baldini, J. Ballet, D. Bastieri, J. Becerra Gonzalez, R. Bellazzini, A. Berretta, E. Bissaldi, R. D. Blandford, E. D. Bloom, Gabrijela Zaharijas, 2021, original scientific article Found in: ključnih besedah
Keywords: high energy astrophysics, active galactic nuclei, gamma-ray bursts, solar flares, solar gamma-ray emission
Published: 17.02.2022; Views: 522; Downloads: 12
Fulltext (32,75 MB)
This document has many files! More...
|
166. Probing the fundamental nature of Dark Matter with the Large Synoptic Survey TelescopeAlex Drlica-Wagner, Yao-Yuan Mao, Susmita Adhikari, Robert Armstrong, Arka Banerjee, Nilanjan Banik, Keith Bechtol, Simeon Bird, Christopher Eckner, Gabrijela Zaharijas, 2019, project documentation (preliminary design, working design) Found in: ključnih besedah
Keywords: dark matter, high energy physics, astrophysical observations, cosmological observations, Large Synoptic Survey Telescope (LSST)
Published: 03.05.2022; Views: 263; Downloads: 8
Fulltext (0,00 KB)
This document has many files! More...
|
167. Dark Matter science in the era of LSSTKeith Bechtol, Alex Drlica-Wagner, Kevork N. Abazajian, Muntazir Abidi, Susmita Adhikari, Yacine Ali-Haïmoud, James Annis, Behzad Ansarinejad, Christopher Eckner, Gabrijela Zaharijas, 2019, project documentation (preliminary design, working design) Found in: ključnih besedah
Keywords: cosmology, nongalactic astrophysics, high energy astrophysical phenomena, high energy physics, experiments
Published: 03.05.2022; Views: 281; Downloads: 8
Fulltext (0,00 KB)
This document has many files! More...
|
168. Multi-messenger studies with the Pierre Auger ObservatoryLukas Zehrer, Andrej Filipčič, Gašper Kukec Mezek, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Marko Zavrtanik, Danilo Zavrtanik, 2021, published scientific conference contribution Abstract: Over the past decade the multi-messenger astrophysics has emerged as a distinct discipline,
providing unique insights into the properties of high-energy phenomena in the Universe. The
Pierre Auger Observatory, located in Malargüe, Argentina, is the world’s largest cosmic ray
detector sensitive to photons, neutrinos, and hadrons at ultra-high energies. Using its data, stringent
limits on photon and neutrino fluxes at EeV energies have been obtained. The collaboration uses
the excellent angular resolution and the neutrino identification capabilities of the Observatory
for follow-up studies of events detected in gravitational waves or other messengers, through
cooperation with global multi-messenger networks. We present a science motivation together
with an overview of the multi-messenger capabilities and results of the Pierre Auger Observatory.
Found in: ključnih besedah
Summary of found: ...discipline,
providing unique insights into the properties of high-energy phenomena in the Universe. The
Pierre Auger Observatory,...
Keywords: high-energy cosmic phenomena, multi-messenger astrophysical studies, cosmic rays, gamma-rays, neutrinos, Pierre Auger Observatory
Published: 06.05.2022; Views: 279; Downloads: 0
Fulltext (1,06 MB) |
169. |
