Results 81 to 90 of about 21,978 (196)
Physics of the linear collider
This presentation intends to illustrate the specific capabilities of an e$^+$e$^-$ sub-TeV collider to provide answers on the basic issues in physics: origin of mass, hierarchy of masses, cosmological problems.
F. RICHARD, Rizzo T. G.
core +2 more sources
Abstract The Atacama Desert in Chile is characterized by its high meteorite density and old meteorite terrestrial ages. In this work, we present new terrestrial ages derived from measurements of the concentration of cosmogenic 36Cl in the metal fraction of 51 ordinary chondrites collected over a 6.8 km2 area located in the Catalina Dense Collection ...
Carine Sadaka +13 more
wiley +1 more source
Electroweak baryogenesis with vector-like leptons and scalar singlets
We investigate the viability of electroweak baryogenesis in a model with a first order electroweak phase transition induced by the addition of two gauge singlet scalars.
Nicole F. Bell +4 more
doaj +1 more source
Direct detection and complementary constraints for sub-GeV dark matter
Traditional direct searches for dark matter, looking for nuclear recoils in deep underground detectors, are challenged by an almost complete loss of sensitivity for light dark matter particles. Consequently, there is a significant effort in the community
Kyrylo Bondarenko +5 more
doaj +1 more source
Chemical-potential-assisted particle production in FRW spacetimes
We analyze gravitational particle production assisted by chemical potential. By utilizing the uniformly smoothed Stokes-line method and Borel summation, we gain insight into the fine-grained history of enhanced particle production. Analytic/semi-analytic
Chon Man Sou, Xi Tong, Yi Wang
doaj +1 more source
Unification and Local Baryon Number
We investigate the possibility to find an ultraviolet completion of the simple extensions of the Standard Model where baryon number is a local symmetry.
Ohmer, Sebastian, Perez, Pavel Fileviez
core +2 more sources
Loading Non‐Maxwellian Velocity Distributions in Particle Simulations
Abstract Numerical procedures for generating non‐Maxwellian velocity distributions in particle simulations are presented. First, Monte Carlo methods for the (r,q) $(r,q)$ distribution that generalizes flattop and Kappa distributions are discussed. Then, two rejection methods for the regularized Kappa distribution are presented, followed by a comparison
Seiji Zenitani +2 more
wiley +1 more source
Probing small-scale power spectra with pulsar timing arrays
Models of Dark Matter (DM) can leave unique imprints on the Universe’s small scale structure by boosting density perturbations on small scales. We study the capability of Pulsar Timing Arrays to search for, and constrain, subhalos from such models.
Vincent S. H. Lee +3 more
doaj +1 more source
Multiple Reconnection X‐Lines at the Earth's Magnetopause in the Presence of Magnetosheath Flow
Abstract Magnetic reconnection occurs continuously along long X‐lines at the Earth's magnetopause. The maximum magnetic shear model predicts the locations of these long X‐lines for a wide range of upstream solar wind conditions. One of the more perplexing observational results is that these X‐lines appear to be stationary, even in the presence of ...
S. A. Fuselier +9 more
wiley +1 more source
Electroweak phase transition with an SU(2) dark sector
We consider a non-Abelian dark SU(2)D model where the dark sector couples to the Standard Model (SM) through a Higgs portal. We investigate two different scenarios of the dark sector scalars with Z 2 symmetry, with Higgs portal interactions that can ...
Tathagata Ghosh +3 more
doaj +1 more source

