Results 81 to 90 of about 67,186 (191)

Experimental validation of Geant4 nuclear interaction models in dose calculations of therapeutic carbon ion beams

open access: yesMedical Physics, Volume 52, Issue 7, July 2025.
Abstract Background The choice of nuclear interaction models in Monte Carlo simulations affects the dose calculation accuracy for light ion beam therapy. Purpose This study aimed to evaluate the dose calculation accuracy and simulation time of three GATE‐RTiON/Geant4 physics lists for therapeutic carbon ion beams, assessing their suitability for ...
Yihan Jia   +6 more
wiley   +1 more source

NLO results with operator mixing for fully heavy tetraquarks in QCD sum rules

open access: yesJournal of High Energy Physics, 2022
We study the mass spectra of Q ¯ Q Q ¯ Q $$ \overline{Q}Q\overline{Q}Q $$ (Q = c, b) systems in QCD sum rules with the complete next-to-leading order (NLO) contribution to the perturbative QCD part of the correlation functions.
Ren-Hua Wu   +5 more
doaj   +1 more source

Composite and elementary natures of a1(1260) meson

open access: yes, 2011
We develop a practical method to analyze the mixing structure of hadrons consisting of two components of quark-composite and hadronic composite. As an example we investigate the properties of the axial vector meson a1(1260) and discuss its mixing ...
Atsushi Hosaka   +6 more
core   +1 more source

Performance of the ALICE secondary vertex b-tagging algorithm in p-Pb collisions

open access: yes, 2016
The hot and dense nuclear matter, that is produced in heavy-ion collisions, could be studied by jets originating from beauty quarks. In-medium energy loss of these quarks provides information on several properties of the quark-gluon plasma, produced in ...
Kramárik, Lukáš
core   +1 more source

Averages of b-hadron, c-hadron, and tau-lepton Properties

open access: yes, 2010
This article reports world averages for measurements of b-hadron, c-hadron, and tau-lepton properties obtained by the Heavy Flavor Averaging Group (HFAG) using results available at least through the end of 2009. Some of the world averages presented use data available through the spring of 2010.
The Heavy Flavor Averaging Group   +38 more
openaire   +2 more sources

Field output correction factors using a scintillation detector

open access: yesMedical Physics, Volume 52, Issue 6, Page 4844-4861, June 2025.
Abstract Background As small radiation fields play an ever‐increasing role in radiation therapy, accurate dosimetry of these fields becomes critical to ensure high quality dose calculation and treatment optimization. Despite the availability of several small volume dose detectors, small field dosimetry remains challenging.
Luc Gingras   +10 more
wiley   +1 more source

A comparative analysis of GEANT4, MCNP6 and FLUKA on proton‐induced gamma‐ray simulation

open access: yesMedical Physics, Volume 52, Issue 6, Page 4862-4870, June 2025.
Abstract Background Precise range verification is essential in proton therapy to minimize treatment margins due to the steep dose fall‐off of proton beams. The emission of secondary radiation from nuclear reactions between incident particles and tissues stands out as a promising method for range verification. Two prominent techniques are PET and Prompt
Hugo Freitas   +3 more
wiley   +1 more source

Photonic Integrated Circuits for Optical Satellite Links: A Review of the Technology Status and Space Effects

open access: yesInternational Journal of Satellite Communications and Networking, Volume 43, Issue 3, Page 210-228, May/June 2025.
ABSTRACT Optical satellite communications provide high‐data rates with compact and power efficient payloads that can solve the bottlenecks of RF technologies. Photonic integrated circuits have the potential to reduce the cost, size, weight, and power consumption of satellite laser communications terminals, by integrating all the required photonic ...
Giulio Terrasanta   +4 more
wiley   +1 more source

Separation of the Charm and Beauty Production in p--Pb and Pb--Pb Collisions with ALICE

open access: yes, 2016
Measurements of heavy (charm and beauty) quarks provide useful insights into the properties of the quark--gluon plasma. The good particle identification capabilities of ALICE make a measurement based on the electrons from semi-leptonic decays of heavy ...
Völkl, Martin
core   +1 more source

Anscombe on the shallowness of consequentialism

open access: yesEuropean Journal of Philosophy, Volume 33, Issue 2, Page 737-747, June 2025.
Abstract This paper is divided into two parts. In the first I outline and defend Elizabeth Anscombe's claim that consequentialism is a shallow philosophy by considering how two contemporary consequentialists reach opposing but equally outlandish moral conclusions on a matter as fundamental as whether it is good or bad that the human race continues.
Craig Taylor
wiley   +1 more source

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