Results 111 to 120 of about 27,754 (198)

Data on Is and Ic in γ→p→pπ0π0 reveal cascade decays of N(1900) via N(1520)π

Physics Letters B, 2015
Photoproduction of two neutral pions off the proton is studied using linearly polarized photons, and the polarization observables Is and Ic are measured for the first time.
V. Sokhoyan, E. Gutz, H. van Pee, A.V. Anisovich, J.C.S. Bacelar, B. Bantes, O. Bartholomy, D. Bayadilov, R. Beck, Y. Beloglazov, R. Castelijns, V. Crede, H. Dutz, D. Elsner, R. Ewald, F. Frommberger, M. Fuchs, Ch. Funke, R. Gregor, A. Gridnev, W. Hillert, Ph. Hoffmeister, I. Horn, I. Jaegle, J. Junkersfeld, H. Kalinowsky, S. Kammer, V. Kleber, Frank Klein, Friedrich Klein, E. Klempt, M. Kotulla, B. Krusche, M. Lang, H. Löhner, I. Lopatin, S. Lugert, T. Mertens, J.G. Messchendorp, V. Metag, M. Nanova, V.A. Nikonov, D. Novinski, R. Novotny, M. Ostrick, L. Pant, M. Pfeiffer, D. Piontek, A. Roy, A.V. Sarantsev, Ch. Schmidt, H. Schmieden, S. Shende, A. Süle, V.V. Sumachev, T. Szczepanek, A. Thiel, U. Thoma, D. Trnka, R. Varma, D. Walther, Ch. Wendel, A. Wilson   +62 more
doaj   +1 more source

Beauty photoproduction at HERA [PDF]

Nuclear Physics B - Proceedings Supplements, 2006
Recent results on beauty photoproduction in electron proton collisions at a center-of-mass energy of 318 GeV at HERA are presented. The data make use of both the HERA-I data sample recorded between 1996 and 2000 and the HERA-II data sample which started in 2003.
openaire   +2 more sources

Photoproduction of charged pions from the deuteron

EPJ Web of Conferences, 2012
The photoproduction of the charged pions from the deuteron has been studied with the Neutral Kaon Spectrometer (NKS) and the Neutral Kaon Spectrometer 2 (NKS2) at the Research Center for Electron Photon Science, Tohoku University (ELPH) which was ...
Kanda Hiroki
doaj   +1 more source

Photoproduction of Mesons off Light Nuclei -- the Search for \eta -Mesic Nuclei

, 2010
Photoproduction of \eta mesons off light nuclei (d, 3He, 7Li) has been measured at the tagged photon beam of the Mainz MAMI accelerator with the combined Crystal Ball/TAPS detection system.
Krusche, B., Maghrbi, Y., Pheron, F.
core  

Photoproduction models for total cross section and shower development

EPJ Web of Conferences, 2015
A model for the total photoproduction cross section, based on the ansatz that resummation of infrared gluons limits the rise induced by QCD minijets in all the total cross-sections, is used to simulate extended air showers initiated by cosmic rays with ...
Cornet Fernando, Garcia Canal Carlos, Grau Agnes, Pancheri Giulia, Sciutto Sergio   +4 more
doaj   +1 more source

Hard exclusive photoproduction of $\Phi$ mesons

, 1999
We calculate the differential cross section and single-polarization observables for the reaction $\gamma p \to \Phi p$ within perturbative QCD, treating the proton as a quark-diquark system.
A. Donnachie, A. Donnachie, A. Donnachie, A. I. Titov, A. V. Radyushkin, C. Bourrely, C. Carimalo, C. Carimalo, C. F. Berger, D. P. Barber, G. R. Farrar, J. Ballam, J. Bolz, J. Bolz, J. C. Collins, J. Gronberg, J. J. Aubert, J. Küblbeck, J.-M. Laget, M. Anselmino, M. Benayoun, M. Derrik, M. Diehl, M. Pichowsky, M. Wirbel, N. Isgur, P. Kroll, P. Kroll, P. Kroll, Q. Zhao, R. Jakob, R. Jakob, R. L. Anderson, R. Mertig, S. J. Brodsky, T. Feldmann, T. Huang, V. L. Chernyak, W. Schweiger   +38 more
core   +1 more source

Diffractive photoproduction of ηc [PDF]

Nuclear Physics A, 2003
Diffractive photoproduction of $ _c$ is an important process to study the effect of Odderon, whose existence is still not confirmed in experiment. A detailed interpretation of Odderon in QCD, i.e., in terms of gluons is also unclear.Taking charm quarks as heavy quarks, we can use NRQCD and take $ _c$ as a $c\bar c$ bound state.
openaire   +2 more sources

$K^0\Lambda$ Photoproduction with Nucleon Resonances

, 2019
We investigate the reaction mechanism of $K^0 \Lambda$ photoproduction off the neutron target, i.e., $\gamma n \to K^0 \Lambda$, in the range of $W\approx 1.6-2.2$ GeV.
Kim, Hyun-Chul, Kim, Sang-Ho
core   +1 more source

Dalitz plot of η′ → ηπ+π−

EPJ Web of Conferences, 2016
In this talk we present preliminary experimental results of Dalitz plot analysis of the decay η′ → η π+ π−, based on the CLAS data collected during photoproduction experiment γ p → η′ p for the center-of-mass energy from 1.90 to 2.62 GeV at Jefferson Lab.
Ghosh Sudeep, Roy Ankhi
doaj   +1 more source

Angular Dependence of η Photoproduction in Photon-Induced Reaction

Advances in High Energy Physics, 2018
Photoproduction of η mesons from nucleons can provide valuable information about the excitation spectrum of the nucleons. The angular dependence of η photoproduction in the photon-induced reaction is investigated in the multisource thermal model.
Jun-Zhen Wang, Bao-Chun Li
doaj   +1 more source