Results 41 to 50 of about 8,176,008 (306)

Roles of sterile neutrinos in particle physics and cosmology [PDF]

International Journal of Modern Physics A, 2019
The impacts of the light sterile neutrino hypothesis in particle physics and cosmology are reviewed. The observed short baseline neutrino anomalies challenging the standard explanation of neutrino oscillations within the framework of three active ...
S. Kang
semanticscholar   +1 more source

Particle Physics with the Cosmic Microwave Background with SPT-3G [PDF]

, 2019
The cosmic microwave background (CMB) encodes information about the content and evolution of the universe. The presence of light, weakly interacting particles impacts the expansion history of the early universe, which alters the temperature and ...
J. Avva, P. Ade, Z. Ahmed, A. Anderson, K. Aylor, R. Thakur, A. Bender, B. Benson, L. Bleem, S. Bocquet, L. Bryant, J. Carlstrom, F. Carter, T. Cecil, C. Chang, T. Crawford, A. Cukierman, T. de Haan, Jun-Jia Ding, M. Dobbs, S. Dodelson, D. Dutcher, W. Everett, K. Ferguson, A. Foster, J. Gallicchio, A. Gambrel, R. Gardner, J. Groh, S. Guns, N. Halverson, A. Harke-Hosemann, N. Harrington, J. Henning, G. Holder, W. Holzapfel, D. Howe, Norden E. Huang, K. Irwin, O. Jeong, M. Jonas, A. Jones, T. Khaire, L. Knox, A. Kofman, M. Korman, D. Kubik, S. Kuhlmann, C. Kuo, Adrian T. Lee, A. Lowitz, S. Meyer, D. Michalik, J. Montgomery, A. Nadolski, T. Natoli, Hieu Nguyen, G. Noble, V. Novosad, S. Padin, Z. Pan, P. Paschos, J. Pearson, C. Posada, W. Quan, S. Raghunathan, A. Rahlin, C. Reichardt, D. Riebel, J. Ruhl, J. Sayre, E. Shirokoff, G. Smecher, J. Sobrin, A. Stark, J. Stephen, K. Story, A. Suzuki, K. Thompson, C. Tucker, K. Vanderlinde, J. Vieira, Gen-Sheng Wang, N. Whitehorn, W.-L.-K. Wu, V. Yefremenko, K. W. Yoon, M. Young   +87 more
semanticscholar   +1 more source

Is Temperature Quenching in the Early Universe Due to Particle Production, Or Quantum Occupation States, Or the Influence of Quantum Teleportation?

, 2018
We examine the role of particle nucleation in the initial universe, and argue that there is a small effect due to particle nucleation in terms of lowering initial temperature, in tandem with energy density and scale factor contributions.
A. Beckwith
semanticscholar   +1 more source

Quantum interference in gravitational particle production

Journal of High Energy Physics, 2022
Previous numerical investigations of gravitational particle production during the coherent oscillation period of inflation displayed unexplained fluctuations in the spectral density of the produced particles.
Edward Basso, Daniel J. H. Chung, Edward W. Kolb, Andrew J. Long   +3 more
doaj   +1 more source

A Minimal Supersymmetric Model of Particle Physics and the Early Universe

, 2013
We consider a minimal supersymmetric extension of the Standard Model, with right-handed neutrinos and local B-L, the difference between baryon and lepton number, a symmetry which is spontaneously broken at the scale of grand unification. To a large extent, the parameters of the model are determined by gauge and Yukawa couplings of quarks and leptons ...
Buchmuller, W., Domcke, V., Kamada, K., Schmitz, K.   +3 more
openaire   +3 more sources

Bounds on the bubble wall velocity

Journal of High Energy Physics
Determining the bubble wall velocity in first-order phase transitions is a challenging task, requiring the solution of (coupled) equations of motion for the scalar field and Boltzmann equations for the particles in the plasma.
Wen-Yuan Ai, Benoit Laurent, Jorinde van de Vis   +2 more
doaj   +1 more source

Dark matter substructures affect dark matter-electron scattering in xenon-based direct detection experiments

Journal of High Energy Physics, 2023
Recent sky surveys have discovered a large number of stellar substructures. It is highly likely that there are dark matter (DM) counterparts to these stellar substructures.
Tarak Nath Maity, Ranjan Laha
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Particle shells from relativistic bubble walls

Journal of High Energy Physics
Relativistic bubble walls from cosmological phase transitions (PT) necessarily accumulate expanding shells of particles. We systematically characterize shell properties, and identify and calculate the processes that prevent them from free streaming ...
Iason Baldes, Maximilian Dichtl, Yann Gouttenoire, Filippo Sala   +3 more
doaj   +1 more source

WIMPs, FIMPs, and Inflaton phenomenology via reheating, CMB and ∆N eff

Journal of High Energy Physics, 2023
In this paper, we extensively analyzed the reheating dynamics after inflation and looked into its possible implication on dark matter (DM) and inflaton phenomenology.
MD Riajul Haque, Debaprasad Maity, Rajesh Mondal   +2 more
doaj   +1 more source