Results 141 to 150 of about 552,537 (332)

Universal behavior of QCD amplitudes at high energy from general tools of statistical physics

open access: yes, 2004
We show that high energy scattering is a statistical process essentially similar to reaction-diffusion in a system made of a finite number of particles. The Balitsky-JIMWLK equations correspond to the time evolution law for the particle density.
A.H. Mueller   +42 more
core   +1 more source

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

open access: yesAdvanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi   +3 more
wiley   +1 more source

A perturbative approach to the hydrodynamics of heavy ion collisions

open access: yes, 2014
Initial fluctuations in hydrodynamic fields such as energy density or flow velocity give access to understanding initial state and equilibration physics as well as thermodynamic and transport properties.
Beraudo, Andrea   +5 more
core   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim   +4 more
wiley   +1 more source

SUSY Dark Matter in the Universe- Theoretical Direct Detection Rates

open access: yes, 2002
Exotic dark matter together with the vacuum energy or cosmological constant seem to dominate in the Universe. An even higher density of such matter seems to be gravitationally trapped in the Galaxy.
A. Bottino   +19 more
core   +1 more source

Differentiable MadNIS-Lite

open access: yesSciPost Physics
Differentiable programming opens exciting new avenues in particle physics, also affecting future event generators. These new techniques boost the performance of current and planned MadGraph implementations.
Theo Heimel, Olivier Mattelaer, Tilman Plehn, Ramon Winterhalder
doaj   +1 more source

Charged particles produced in quark and gluon jets in proton-proton collisions

open access: yesEPJ Web of Conferences, 2011
The study of particle production inside jets makes it possible to address the fragmentation properties of the leading parton depending on its flavour.
Pochybova S.
doaj   +1 more source

Colour Coherence in Photon Induced Reactions [PDF]

open access: yes, 1996
Colour coherence in hard photoproduction is considered using the Monte Carlo event generators PYTHIA and HERWIG. Significant effects in the parton shower are found using multijet observables for direct and resolved photon induced reactions.
Lebedev, A.   +3 more
core   +3 more sources

Possible astrophysical clues of dark matter

open access: yes, 2004
The physics of the supernova may provide a clue of the cosmological dark matter. In the absence of new physics, the supernova calculations do not explain the observed velocities of pulsars. However, if there exists a singlet fermion with mass in the 1-20
Abazajian   +30 more
core   +2 more sources

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