Results 91 to 100 of about 88,365 (215)

Assessing proton plans with three different beam delivery systems versus photon plans for head and neck tumors

open access: yesJournal of Applied Clinical Medical Physics, Volume 26, Issue 5, May 2025.
Abstract Purpose To compare plan quality among photon volumetric modulated arc therapy (VMAT) and intensity‐modulated proton therapy (IMPT) with robustness using three different proton beam delivery systems with various spot size (σ) ranges: cyclotron‐generated proton beams (CPBs) (σ: 2.7–7.0 mm), linear accelerator proton beams (LPBs) (σ: 2.9–5.5 mm),
Tara Gray   +9 more
wiley   +1 more source

Hadron mass corrections in semi-inclusive deep-inelastic scattering

open access: yes, 2015
The spin-dependent cross sections for semi-inclusive lepton-nucleon scattering are derived in the framework of collinear factorization, including the effects of masses of the target and produced hadron at finite momentum transfer squared Q^2.
Accardi, A.   +4 more
core   +1 more source

Measurement of coherent exclusive J/ψ → μ + μ − production in ultraperipheral Pb+Pb collisions at s NN = 5.36 $$ \sqrt{s_{\textrm{NN}}}=5.36 $$ TeV with the ATLAS detector

open access: yesJournal of High Energy Physics
The ATLAS experiment has performed a measurement of coherent exclusive J/ψ → μ + μ − production in ultraperipheral Pb+Pb collisions at s NN = 5.36 $$ \sqrt{s_{\textrm{NN}}}=5.36 $$ TeV. The data was recorded at the Large Hadron Collider (LHC) during 2023,
The ATLAS collaboration   +2925 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

Probing GPDs in Ultraperipheral Collisions

open access: yes, 2014
Ultraperipheral collisions in hadron colliders give new opportunites to investigate the hadron stucture through exclusive photoproduction processes. We describe the possibility of measuring the Generalized Parton Distributions in the Timelike Compton ...
Ivanov, D. Yu.   +3 more
core   +2 more sources

Hadronic molecules and low-energy hadron-hadron scattering amplitudes

open access: yesAIP Conference Proceedings, 1995
(Expanded version of results presented at Few Body XIV, Williamsburg, Virginia, 26-31 May 1994), LATEX using epsfig and wrapfig. postscript file incorporating figures available by anonymous ftp to COMPSCI.CAS.VANDERBILT.EDU, subdirectory QSM, file fbpp ...
openaire   +2 more sources

Basics of QCD Perturbation Theory: TASI 2000

open access: yes, 2000
This is an introduction to the use of QCD perturbation theory, emphasizing generic features of the theory that enable one to separate short-time and long-time effects. I also cover some important classes of applications: electron-positron annihilation to
Soper, Davison E.
core   +1 more source

Saturation of optimality limits in hadron-hadron scatterings

open access: yes, 2003
In this paper the optimal unitarity lower bound on logarithmic slope of the diffraction peak is investigated. It is shown that the unitarity lower bound is just the optimal logarithmic slopes predicted by the principle of least distance in space of states.
Ion, D. B., Ion, M. L.
openaire   +2 more sources

Fixed Angle Scattering and the Transverse Structure of Hadrons

open access: yes, 2010
The perturbative treatment of high-energy fixed-angle hadron-hadron exclusive scattering is reviewed and related to the transverse structure of the proton and other hadrons.Comment: Talk presented at the 4th Workshop on Exclusive Reactions at High ...
Sterman, George
core   +1 more source

Observation of electroweak production of W + W − in association with jets in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics
A measurement of the production of W bosons with opposite electric charges in association with two jets is presented based on 140 fb −1 of data collected by the ATLAS detector in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV.
The ATLAS collaboration   +2948 more
doaj   +1 more source

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