Results 71 to 80 of about 55,706 (163)

Fragmentation of Transversely Polarized Quarks Probed in Transverse Momentum Distributions

open access: yes, 2002
It is shown that the azimuthal dependence of the distribution of hadrons in a quark jet is a probe of the transverse spin of the quark initiating the jet. This results in a new spin-dependent fragmentation function that acts at the twist-2 level.
Adams   +45 more
core   +1 more source

Measurements of top-quark pair differential cross-sections in the lepton+jets channel in pp collisions at s=13 $$ \sqrt{s}=13 $$ TeV using the ATLAS detector

open access: yesJournal of High Energy Physics, 2017
Measurements of differential cross-sections of top-quark pair production in fiducial phase-spaces are presented as a function of top-quark and tt¯ $$ t\overline{t} $$ system kinematic observables in proton-proton collisions at a centre-of-mass energy of ...
The ATLAS collaboration   +2842 more
doaj   +1 more source

Quantum Color Transparency and Nuclear Filtering

open access: yes, 1995
Color transparency is the proposal that under certain circumstances the strong interactions can be reduced in magnitude. We give a comprehensive review of the physics, which hinges on the interface of perturbative QCD with non--perturbative strong ...
Adams   +188 more
core   +1 more source

Measurements of the pp → Wγγ and pp → Zγγ cross sections and limits on anomalous quartic gauge couplings at s = 8 $$ \sqrt{s}=8 $$ TeV

open access: yesJournal of High Energy Physics, 2017
Measurements are presented of Wγγ and Zγγ production in proton-proton collisions. Fiducial cross sections are reported based on a data sample corresponding to an integrated luminosity of 19.4 fb−1 collected with the CMS detector at a center-of-mass ...
The CMS collaboration   +2228 more
doaj   +1 more source

Ultrafast Superradiant Scintillation from Isolated Weakly Confined Perovskite Nanocrystals

open access: yesAdvanced Materials, Volume 37, Issue 18, May 5, 2025.
Efficiency and scintillation velocity are critical for high‐energy and medical physics. These parameters, typically conflicting in conventional scintillators, are simultaneously optimized by exploiting the giant oscillator strength of CsPbBr3 nanocrystals, leading to radiatively accelerated (multi)excitonic emission with unity efficiency without ...
Matteo L. Zaffalon   +9 more
wiley   +1 more source

Measurement of b-quark fragmentation properties in jets using the decay B ± → J/ψK ± in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2021
The fragmentation properties of jets containing b-hadrons are studied using charged B mesons in 139 fb −1 of pp collisions at s $$ \sqrt{s} $$ = 13 TeV, recorded with the ATLAS detector at the LHC during the period from 2015 to 2018.
The ATLAS collaboration   +2871 more
doaj   +1 more source

Hadron-hadron and hadron-nuclei collisions at high energies [PDF]

open access: yes, 2000
A brief review is made of the present situation of hadron-hadron and hadron-nuclei total elastic and inelastic cross sections at high energiesComment: 7 ...
Giacomelli, G., Giacomelli, R.
core   +3 more sources

Results of a Geant4 benchmarking study for bio‐medical applications, performed with the G4‐Med system

open access: yesMedical Physics, Volume 52, Issue 5, Page 2707-2761, May 2025.
Abstract Background Geant4, a Monte Carlo Simulation Toolkit extensively used in bio‐medical physics, is in continuous evolution to include newest research findings to improve its accuracy and to respond to the evolving needs of a very diverse user community.
Pedro Arce   +57 more
wiley   +1 more source

Electron beam monitoring of a modified conventional medical accelerator with a portable current transformer system traceable to primary electrical standards

open access: yesMedical Physics, Volume 52, Issue 4, Page 2581-2592, April 2025.
Abstract Background Ultra‐high dose rate radiotherapy (UHDR) delivers therapeutic doses at rates >40 Gy/s in a fraction of a second, aiming to enhance the therapeutic ratio through the FLASH effect. The substantial increase in UHDR beam current poses serious challenges for conventional active dosimeters.
James Renaud   +3 more
wiley   +1 more source

Ferrites with a Minimized Secondary Electron Yield

open access: yesAdvanced Science, Volume 12, Issue 10, March 13, 2025.
Ferrites are a key material in particle accelerators and space science, exposing them to high energy electrons and leading to multipacting, charging and electron cloud formation. Laser engineered surface structures are shown to dramatically reduce the secondary electron yield of ferrite eliminating these issues.
Robin Uren   +10 more
wiley   +1 more source

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