Results 91 to 100 of about 27,900 (194)

Spin rotation effects in diffractive electroproduction of heavy quarkonia

European Physical Journal C: Particles and Fields, 2019
In this work we present for the first time the comprehensive study of the Melosh spin rotation effects in diffractive electroproduction of S-wave heavy quarkonia off a nucleon target. Such a study has been performed within the color dipole approach using,
Michal Krelina, Jan Nemchik, Roman Pasechnik, Jan Čepila   +3 more
doaj   +1 more source

Ionic Metal Poly(heptazine Imides) and Single‐Atoms Interplay: Engineered Stability and Performance for Photocatalysis, Photoelectrocatalysis and Organic Synthesis

Advanced Functional Materials, Volume 35, Issue 44, October 29, 2025.
Poly(heptazine) imides (PHIs), a crystalline carbon nitride subclass, intercalate metals to deliver high stability, tunable electronics, and efficient charge separation. These features enable solar‐driven applications such as hydrogen evolution, CO₂ reduction, and organic synthesis.
Gabriel A. A. Diab, Izadora F. Reis, Chong Wang, Diandra Barreto, Oleksandr Savateev, Ivo F. Teixeira, Pablo Jiménez‐Calvo   +6 more
wiley   +1 more source

Graphene and Carbon Quantum Dots: Competing Carbons in Harmonized Photoelectrochemical Platforms

Small, Volume 21, Issue 40, October 9, 2025.
This review discusses the essential roles of carbon quantum dots (CQDs) and graphene quantum dots (GQDs) in photoelectrochemical (PEC) systems. It addresses specific aspects of their 1D properties, nanohybrid combinations, unique functionalization's, and other mechanisms to improve light absorption and charge separation, which provides new ...
Sandip Mandal, Sangeeta Adhikari, Manasi Murmu, Byung‐Hoon Kim, Do‐Heyoung Kim   +4 more
wiley   +1 more source

Photoproduction and electroproduction of charm at high energies

, 2000
We estimate the differential and total cross sections for both the photoproduction of vector D*-meson and its yield in deep inelastic scattering at the HERA collider in the framework of model motivated by perturbative calculations in QCD.
A. K. Likhoded, A. V. Berezhnoy, A. V. Berezhnoy, A. V. Berezhnoy, B. A. Kniehl, C. Peterson, C.-H. Chang, CIF Collab., G. T. Bodwin, M. Cacciari, OPAL Collab., P. Nason, S. Frixione, V. G. Kartvelishvili, V. V. Kiselev, Yu. L. Dokshitzer, ZEUS Collab.   +16 more
core   +1 more source

Charmonium photoproduction

, 2003
The available data on $J/ $ photoproduction are analyzed in terms of pomeron exchange, two gluon exchange and photon-gluon fusion models. Allowing the pomeron-quark interaction to be flavour dependent and introducing the soft and hard pomerons it is possible to reproduce the data at $\sqrt{s}{>}$10 GeV and small $|t|$.
Sibirtsev, A., Krewald, S., Thomas, A. W.   +2 more
openaire   +2 more sources

Exploring Photoproduction with the GlueX Experiment [PDF]

EPJ Web of Conferences
The GlueX experiment at Jefferson Lab (Newport News, VA USA) is designed to explore the spectrum of mesons up to about 3 GeV. We present results on the production of light-quark resonances with linearly polarized photons.
Shepherd Matthew
doaj   +1 more source

Photoproduction of Pentaquark $\Theta^+$ and Chiral Symmetry Restoration in Hot and Dense Medium

, 2006
The photoproduction rate of pentaquark $\Theta^+$ is calculated in a hot and dense medium. At high temperature and density, due to the restoration of chiral symmetry, photoproduction energy threshold is increased.
H. Kim, Pengfei Zhuang, Xuewen Hao
core   +1 more source

Pt/TiO2 Prepared by Mechanochemistry Boosts Photocatalytic Production of Hydrogen

ChemCatChem, Volume 17, Issue 15, August 7, 2025.
Ball milling enables the rapid synthesis of a Pt/TiO₂ photocatalyst with atomically dispersed Pt, outperforming a conventional Pt‐cluster catalyst (1.3× higher H2 evolution from ethanol). Enhanced activity is attributed to single‐atom stabilization and suppressed surface restructuring, promoting efficient charge separation via Schottky barrier ...
Asier Agrelo‐Lestón, Lluís Soler, Jordi Llorca   +2 more
wiley   +1 more source

Fluorescence as a tracer of the susceptibility of dissolved organic matter to photodegradation in the Arctic Ocean

Limnology and Oceanography, Volume 70, Issue 8, Page 2299-2314, August 2025.
Abstract The Arctic Ocean exports a large amount of terrestrial dissolved organic matter (DOM) to the Nordic seas. With climate change, the supply of terrestrial DOM from the Arctic Ocean will increase while less sea ice might lead to an increased loss of terrestrial DOM due to photodegradation.
Urban J. Wünsch, Rafael Gonçalves‐Araujo, Mats A. Granskog, Linea Gry Ebbesen, Maria Papadimitraki, Colin A. Stedmon   +5 more
wiley   +1 more source

Photoproduction of K Sigma(1385) from the nucleon

, 2010
The reactions of $K \Sigma(1385)$ photoproduction, i.e., $\gamma p \to K^+ \Sigma^0(1385)$ and $\gamma n \to K^+ \Sigma^-(1385)$, are investigated in the resonance energy region for studying the role of the nucleon and $\Delta$ resonances of masses ...
Oh, Yongseok
core   +1 more source