Results 111 to 120 of about 525,987 (225)

Secondary neutron dosimetry for conformal FLASH proton therapy

open access: yesMedical Physics, Volume 51, Issue 7, Page 5081-5093, July 2024.
Abstract Background Cyclotron‐based proton therapy systems utilize the highest proton energies to achieve an ultra‐high dose rate (UHDR) for FLASH radiotherapy. The deep‐penetrating range associated with this high energy can be modulated by inserting a uniform plate of proton‐stopping material, known as a range shifter, in the beam path at the nozzle ...
Dixin Chen   +9 more
wiley   +1 more source

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

Search for flavour-changing neutral current top-quark decays t → qZ in proton-proton collisions at s=13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2018
A search for flavour-changing neutral-current processes in top-quark decays is presented. Data collected with the ATLAS detector from proton-proton collisions at the Large Hadron Collider at a centre-of-mass energy of s=13 $$ \sqrt{s}=13 $$ TeV ...
The ATLAS collaboration   +2869 more
doaj   +1 more source

Buoy‐Based Detection of Low‐Energy Cosmic‐Ray Neutrons to Monitor the Influence of Atmospheric, Geomagnetic, and Heliospheric Effects

open access: yesEarth and Space Science, Volume 11, Issue 6, June 2024.
Abstract Cosmic radiation on Earth responds to heliospheric, geomagnetic, atmospheric, and lithospheric changes. In order to use its signal for soil hydrological monitoring, the signal of thermal and epithermal neutron detectors needs to be corrected for external influencing factors.
Martin Schrön   +8 more
wiley   +1 more source

Development and validation of MonteRay, a fast Monte Carlo dose engine for carbon ion beam radiotherapy

open access: yesMedical Physics, Volume 51, Issue 2, Page 1433-1449, February 2024.
Abstract Background Monte Carlo (MC) simulations are considered the gold‐standard for accuracy in radiotherapy dose calculation; so far however, no commercial treatment planning system (TPS) provides a fast MC for supporting clinical practice in carbon ion therapy.
Peter Lysakovski   +7 more
wiley   +1 more source

Gravitational scattering of a quantum particle and the privileged coordinate system [PDF]

open access: yes, 2017
In gravitational scattering the quantum particle probes the Fourier-transforms of a metric. I evaluate the Fourier-transforms of Schwarzschild metrics in standard, harmonic and other coordinate systems in linear and $G^2-$approximations. In general different coordinate systems lead to different scattering.
arxiv   +1 more source

Parton Propagation and Fragmentation in QCD Matter

open access: yes, 2009
We review recent progress in the study of parton propagation, interaction and fragmentation in both cold and hot strongly interacting matter. Experimental highlights on high-energy hadron production in deep inelastic lepton-nucleus scattering, proton ...
Accardi, Alberto   +4 more
core   +2 more sources

Measurement of charged-particle distributions sensitive to the underlying event in s = 13 $$ \sqrt{s}=13 $$ TeV proton-proton collisions with the ATLAS detector at the LHC

open access: yesJournal of High Energy Physics, 2017
We present charged-particle distributions sensitive to the underlying event, measured by the ATLAS detector in proton-proton collisions at a centre-of-mass energy of 13 TeV, in low-luminosity Large Hadron Collider fills corresponding to an integrated ...
The ATLAS collaboration   +2839 more
doaj   +1 more source

Sampling the Materials Space for Conventional Superconducting Compounds

open access: yesAdvanced Materials, Volume 36, Issue 1, January 4, 2024.
A large‐scale, machine‐learning‐accelerated study of conventional superconducting materials is presented, wherein the transition temperatures of approximately 200 000 metallic compounds are evaluated, all of which are close to the convex hull of thermodynamic stability to maximize the probability of synthesizability.
Tiago F. T. Cerqueira   +2 more
wiley   +1 more source

Deeply virtual Compton scattering and prompt photon production at ZEUS and H1 experiments [PDF]

open access: yesActa Phys.Polon. B37 (2006) 721-726, 2005
Recent results on prompt photon production and Deeply Virtual Compton Scattering (DVCS) from ZEUS and H1 experiments are presented.
arxiv  

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