搜索结果: 1-12 共查到“知识库 天文学 neutrinos”相关记录12条 . 查询时间(0.047 秒)
EUSO: using high energy cosmic rays and neutrinos as messengers from the unknown universe
fluorescence cosmic rays neutrinos extensive air showers
font style='font-size:12px;'>
2015/9/16
Exploiting the earth atmosphere as a giant detector for the incoming extraterrestrial fl ux of high energy cosmic rays
and cosmic neutrinos, the mission «EUSO-Extreme Universe Space Observatory&...
A Search for UHE Tau Neutrinos with IceCube
IceCube neutrino telescope tau neutrinos double bangs
font style='font-size:12px;'>
2012/2/23
The first dedicated search for ultra-high energy (UHE) tau neutrinos of astrophysical origin was performed using the IceCube detector in its 22-string configuration. The search also had sensitivity to...
Constraining dynamical dark energy with a divergence-free parametrization in the presence of spatial curvature and massive neutrinos
Constraining dynamical dark energy divergence-free parametrization presence spatial curvature massive neutrinos
font style='font-size:12px;'>
2012/2/21
In this paper, we report the results of constraining the dynamical dark energy with a divergence-free parameterization, $w(z) = w_{0} + w_{a}(\frac{\ln(2+z)}{1+z}-\ln2)$, in the presence of spatial cu...
Indirect Dark Matter Detection in the Light of Sterile Neutrinos
Indirect Dark Matter Detection Light Sterile Neutrinos
font style='font-size:12px;'>
2012/2/23
The recent global fit of short baseline neutrino oscillation data favors the presence of one (or more) sterile neutrino state which leads to new mass splitting \Delta m^2 ~1 eV^2. We consider the effe...
High Energy Neutrinos from Gamma Ray Bursts
High Energy Neutrinos Gamma Ray Bursts
font style='font-size:12px;'>
2011/10/13
In the internal shock model of gamma ray bursts ultrahigh energy pions, kaons and neutrons are likely to be produced in the interactions of shock accelerated relativistic protons with low energy photo...
Constraints on the origin of ultra-high-energy cosmic rays from cosmogenic neutrinos and photons
Astroparticle physics Acceleration of particles Abundances Neutrinos Gamma-rays Relativistic processes
font style='font-size:12px;'>
2011/10/11
We study the production of cosmogenic neutrinos and photons during the extragalactic propagation of ultra-high-energy cosmic rays (UHECRs). For a wide range of models in cosmological evolution of sour...
ISW-LSS cross-correlation in coupled Dark Energy models with massive neutrinos
cosmic microwave background cosmology: miscellaneous cosmology observations cosmology: theory cosmology: large-scale structure of universe
font style='font-size:12px;'>
2010/11/9
We provide an exhaustive analysis of the Integrated Sach–Wolfe effect (ISW) in the context of coupled Dark Energy cosmologies where a component of massive neutrinos is also present. We focus on the ef...
Directional correlations between UHECRs and neutrinos observed with IceCube
Directional correlations neutrinos observed
font style='font-size:12px;'>
2010/11/10
Ultra-high energy cosmic rays (UHECR) above an energy threshold of tens of EeV might undergo only small deflections due to interstellar magnetic fields. Their arrival directions would then point to re...
High-energy atmospheric neutrinos
High Energy Astrophysical Phenomena (astro-ph.HE) High Energy Physics - Experiment (hep-ex)
font style='font-size:12px;'>
2010/12/29
High-energy neutrinos, arising from decays of mesons that were produced through the cosmic rays collisions with air nuclei, form unavoidable background noise in the astrophysical neutrino detection pr...
Gamma rays and neutrinos from dark matter annihilation in galaxy clusters
dark matter Gamma rays galaxy clusters
font style='font-size:12px;'>
2010/3/9
The $\gamma$-ray and neutrino emissions from dark matter (DM) annihilation in galaxy clusters are studied. After about one year operation of Fermi-LAT, several nearby clusters are reported with string...
Simulation of the Event Reconstruction of Ultra High Energy Cosmic Neutrinos with Askaryan Radio Array
Ultra High Energy Cosmic Neutrinos Askaryan Radio Array
font style='font-size:12px;'>
2010/3/8
Askaryan Radio Array (ARA), a large-scale radio Cherenkov observatory which scientists propose to develop in Antarctica, aims at discovering the origin and evolution of the cosmic accelerators that pr...
Dark Energy in the Universe, the Irreversibility of Time and Neutrinos
Dark Energy the Universe Time and Neutrinos
font style='font-size:12px;'>
2010/10/13
In this review, I discuss briefly how the presence of a cosmological constant in the Universe may imply a decoherent evolution of quantum matter in it, and as a consequence a fundamental irreversibili...