Results 51 to 60 of about 397,296 (294)

High pT hadron production in photon-photon collisions

Physics Letters B, 1981
We have studied the properties of hadron production in photon-photon scattering with tagged photons at the e+e- storage ring PETRA. A tail in the pT distribution of particles consistent with pT-4 has been observed. We show that this tail cannot be due to the hadronic part of the photon.
Brandelik, R, Braunschweig, W, Gather, K, Kirschfink, FJ, Lübelsmeyer, K, Martyn, HU, Peise, G, Rimkus, J, Sander, HG, Schmitz, D, Schultz von Dratzig, A, Trines, D, Wallraff, W, Boerner, H, Fischer, HM, Hartmann, H, Hilger, E, Hillen, W, Knop, G, Köpke, L, Kolanoski, H, Leu, P, Wedemeyer, R, Wermes, N, Wollstadt, M, Burkhardt, H, Cooper, S, Heyland, D, Hultschig, H, Joos, P, Koch, W, Kötz, U, Kowalski, H, Ladage, A, Lüke, D, Lynch, HL, Mättig, P, Mess, KH, Notz, D, Pyrlik, J, Quarrie, DR, Riethmüller, R, Shapira, A, Söding, P, Wiik, BH, Wolf, G, Fohrmann, R, Holder, M, Krasemann, HL, Poelz, G, Römer, O, Rüsch, R, Schmüser, P, Al-Agil, I, Beuselinck, R, Binnie, DM, Campbell, AJ, Dornan, PJ, Garbutt, DA, Jones, TD, Jones, WG, Lloyd, SL, Pandoulas, D, Sedgbeer, JK, Stern, RA, Yarker, S, Bowler, MG, Brock, IC, Cashmore, RJ, Devenish, R, Grossmann, P, Illingworth, J, Ogg, M, Salmon, GL, Thomas, J, Wyatt, TR, Youngman, C, Bell, KW, Foster, B, Hart, JC, Proudfoot, J, Saxon, DH, Woodwarth, PL, Duchovni, E, Eisenberg, Y, Karshon, U, Mikenberg, G, Revel, D, Ronat, E, Barklow, T, Freeman, J, Lecomte, P, Meyer, T, Rudolph, G, Wicklund, E, Sau, LW, Zobernig, G   +96 more
openaire   +2 more sources

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Inclusive and exclusive diffractive production of dilepton pairs in proton-proton collisions at high energies

, 2011
We calculate for the first time cross sections for single and central diffractive as well as exclusive diffractive production of dilepton pairs in proton-proton collisions. Several differential distributions are shown. The inclusive diffractive processes
A. Szczurek, D. Bocian, G. Kubasiak, V. Barger   +3 more
core   +1 more source

Hard photon production and matrix-element parton-shower merging [PDF]

, 2010
We present a Monte-Carlo approach to prompt-photon production, where photons and QCD partons are treated democratically. The photon fragmentation function is modelled by an interleaved QCD+QED parton shower.
Hoeche, Stefan, Schumann, Steffen, Siegert, Frank   +2 more
core   +1 more source

CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao, Rong Li, Yu‐Xiang Jiao, Kai Ma, Hong‐Qi Yang, Zheng‐Yu Sun, Jie‐Wen Zhang, Shuai Chen   +7 more
wiley   +1 more source

Photons as a Signal of Deconfinement in Hadronic Matter under Extreme Conditions

Physics, 2023
The photon production by conversion of gluons gg→γ via quark loop in the framework of the mean-field approach to the QCD (quantunm chromodynamics) vacuum is studied here.
Sergei Nedelko, Aleksei Nikolskii
doaj   +1 more source

NNLO Photon Production with Realistic Photon Isolation

Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2022), 2022
Isolated photon production at hadron colliders proceeds via direct production and fragmentation processes. Theory predictions for the isolated photon and photon-plus-jet cross section often impose idealised photon isolation criteria, eliminating the fragmentation contribution and introducing a systematic uncertainty in the comparison to data.
Schuermann, Robin, Chen, Xuan, Gehrmann, Thomas, Glover, Nigel, Höfer, Marius, Huss, Alexander   +5 more
openaire   +5 more sources

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Production of Magnetic Monopoles via Photon Fusion: Implementation in MadGraph ^†

Proceedings, 2019
If the Dirac magnetic monopoles exist, they can be probed in the collider experiments. Earlier, only the Drell–Yan production mechanism of magnetic monopoles was used to look for magnetic monopoles.
Arka Santra
doaj   +1 more source

Review of Two-Photon Interactions

, 2003
Presented are recent results of two-photon interactions. Topics inlcude photon structure functions, inclusive hadron production, differential cross sections derived from tagged 2-photon fusion events and results in exclusive hadron production ...
Urner, David
core   +1 more source