Results 71 to 80 of about 74,681 (258)
Effective Field Theories for heavy probes in a hot QCD plasma and in the early universe
There are many interesting problems in heavy-ion collisions and in cosmology that involve the interaction of a heavy particle with a medium. An example is the dissociation of heavy quarkonium seen in heavy-ion collisions.
Escobedo Miguel A.
doaj +1 more source
Dark Matter Prediction from Canonical Quantum Gravity with Frame Fixing
We show how, in canonical quantum cosmology, the frame fixing induces a new energy density contribution having features compatible with the (actual) cold dark matter component of the Universe. First we quantize the closed Friedmann-Robertson-Walker (FRW)
Lemaitre G. +8 more
core +1 more source
Provincializing Frankfurt: A Postcolonial Rereading of Habermasian Theory
Constellations, EarlyView.
Floris Biskamp
wiley +1 more source
Abstract Loss of relativistic electrons with energies above 0.5 MeV through the magnetopause, commonly referred to as magnetopause shadowing, has been extensively investigated using both simulations and observations. However, direct and systematic observational evidence remains limited. In this study, we extend a previously developed magnetopause model
Kyung‐Chan Kim, Dae‐Young Lee
wiley +1 more source
The Hubble tension: Relativistic dark matter production from long-lived particles
The tension between direct measurements of the Hubble constant and those stemming from Cosmic Microwave Background probes has triggered a multitude of studies.
Alvaro S. de Jesus +4 more
doaj +1 more source
Physico-mathematical foundations of relativistic cosmology [PDF]
I briefly present the foundations of relativistic cosmology, which are, General Relativity Theory and the Cosmological Principle. I discuss some relativistic models, namely, "Einstein static universe" and "Friedmann universes".
Soares, Domingos
core
Newtonian and relativistic cosmologies
Cosmological N-body simulations are now being performed using Newtonian gravity on scales larger than the Hubble radius. It is well known that a uniformly expanding, homogeneous ball of dust in Newtonian gravity satisfies the same equations as arise in relativistic FLRW cosmology, and it also is known that a correspondence between Newtonian and ...
Green, Stephen R., Wald, Robert M.
openaire +3 more sources
An Extended Amplitude Range Readout Circuit for Charged Particle Detection–BEAR 2
Abstract Charge sensitive amplifiers (CSA) form the first stage of most detector readout circuits. The operating range of the readout circuits depends on the saturation limits of the Charge sensitive amplifiers, thereby limiting the range of the detector system as well. A number of methods have been introduced to extend the dynamic range of the readout
A. Antony Gomez +5 more
wiley +1 more source
The cosmological nature of the dark Universe
This paper deals with the cancellation mechanism, which identifies the energy density of space-time expansion in an empty universe with the zero-point energy density and avoids the scale discrepancy with the observed energy density (cosmological constant
Christian Henke
doaj +1 more source
Relativistic Effect in Galaxy Clustering
The general relativistic description of galaxy clustering provides a complete and unified treatment of all the effects in galaxy clustering such as the redshift-space distortion, gravitational lensing, Sachs-Wolfe effects, and their relativistic effects.
Yoo, Jaiyul
core +1 more source

