搜索结果: 1-15 共查到“高能天体物理学 Matter”相关记录18条 . 查询时间(0.472 秒)
Transition Radiation from the Neutrino-Photon Interaction in Matter
Transition Radiation the Neutrino-Photon Interaction Matter
2012/2/23
We show that, because of their effective electromagnetic interaction in matter, transition radiation is emitted whenever neutrinos goes across the boundary between two media with different indices of ...
Study of Beta Equilibrated 2+1 Flavor Quark Matter in PNJL Model
Study of Beta Equilibrated 2+1 Flavor Quark Matter in PNJL Model
2011/10/14
The QCD phase diagram of 2+1 flavour quark matter in $\beta$ equilibrium is studied within the framework of PNJL model. Signatures for first order phase transition can be seen in high baryon chemical ...
Dark Matter Searches: The Nightmare Scenario
Dark Matter Searches: The Nightmare Scenario
2011/10/20
The unfortunate case where the Large Hadron Collider (LHC) fails to discover physics Beyond the Standard Model (BSM) is sometimes referred to as the "Nightmare scenario" of particle physics. We study ...
Constraints on Enhanced Dark Matter Annihilation from IceCube Results
Dark matter Neutrinos Neutrino Telscopes
2011/10/18
Excesses on electromagnetic fluxes measured by ATIC, and the PAMELA and Fermi-LAT telescopes can be explained by dark matter annihilation in our Galaxy. However, this requires large boosts on the dark...
A Two-Tiered Correlation of Dark Matter with Missing Transverse Energy: Reconstructing the Lightest Supersymmetric Particle Mass at the LHC
Correlation Dark Matter Missing Transverse Energy Reconstructing Lightest Supersymmetric
2011/10/18
We suggest that non-trivial correlations between the dark matter particle mass and collider based probes of missing transverse energy H_T^miss may facilitate a two tiered approach to the initial disco...
Electroweak Baryogenesis and Dark Matter with an approximate R-symmetry
Electroweak Baryogenesis Dark Matter with approximate R-symmetry
2011/10/18
It is well known that R-symmetric models dramatically alleviate the SUSY flavor and CP problems. We study particular modifications of existing R-symmetric models which share the solution to the above ...
We examine the neutralino dark matter phenomenology in supersymmetric scenarios with nonuniversal Higgs masses at the gauge coupling unification scale that can acommodate a light Higgs boson, where th...
In a recent paper (arXiv:1106.4546), we introduced "dynamical dark matter," a new framework for dark-matter physics, and outlined its underlying theoretical principles and phenomenological possibiliti...
Can CoGeNT and DAMA Modulations Be Due to Dark Matter?
CoGeNT DAMA Modulations Due Matter
2011/10/18
We explore the dark matter interpretation of the anomalies claimed by the DAMA and CoGeNT experiments, in conjunction with the various null direct-detection experiments. An independent analysis of the...
Dark and luminous matter in THINGS dwarf galaxies
Galaxies dark matter – galaxies kinematics and dynamics – galaxies
2010/11/10
We present mass models for the dark matter component of seven dwarf galaxies taken from “The
Hi Nearby Galaxy Survey” (THINGS) and compare these with those from numerical Cold Dark
Matter (CDM) s...
Dark matter and a new gauge boson through kinetic mixing
Hidden gauge symmetry Kinetic mixing Thermal dark matter
2010/11/16
We consider a hidden sector model of dark matter which is charged under a hidden U(1)X gauge symmetry. Kinetic mixing of U(1)X with the Standard Model hypercharge U(1)Y is allowed to provide communica...
A leading hypothesis for the nature of the elusive dark matter are ther-mally produced, weakly interacting massive particles that arise in many theo-ries beyond the standard model of particle physics.
The Peaks Formalism and the Formation of Cold Dark Matter Haloes
gravitation - galaxies haloes - cosmology theory - dark matter – meth-ods numerical
2010/11/15
We use two cosmological simulations of structure formation to study the condi-tions under which dark matter haloes emerge from the linear density field. Our analysis focuses on matching sites of halo ...
Phase transition to the state with nonzero average helicity in dense neutron matter
Phase transition nonzero average dense neutron matter
2010/11/16
The possibility of the appearance of the states with a nonzero average helicity in neutron matter is studied in the model with the Skyrme effective interaction. By providing the analysis of the selfco...
Chandra high resolution spectroscopy of the circumnuclear matter in the Broad Line Radio Galaxy 3C445
High Energy Astrophysical Phenomena (astro-ph.HE)
2010/12/29
We present evidence for X-ray line emitting and absorbing gas in the nucleus of the Broad-Line Radio Galaxy (BLRG), 3C 445. A 200ks Chandra LETG observation of 3C 445 reveals the presence of several h...