Results 1 to 10 of about 27,900 (194)

Soft Photoproduction Physics [PDF]

Journal of Physics G: Nuclear and Particle Physics, 1995
Several topics of interest in soft photoproduction physics are discussed. These include jet universality issues (particle flavour composition), the subdivision into event classes, the buildup of the total photoproduction cross section and the effects of ...
AFS Collaboration (Åkesson T ), Barker N J, CDF Collaboration (Abe F ), DELPHI Collaboration (Abreu P ), Drees M, E665 Collaboration (Adams M R ), EMC Collaboration (Arneodo M ), Engel R, H1 Collaboration (Aid S ), H1 Collaboration (Aid S ), Jones G T, Knowles I G, L3 Collaboration (Acciarri M ), Montvay I, Peterson C, Schuler G A, Schuler G A, Sjöstrand T, Sjöstrand T, Torbjörn Sjöstrand, Wroblewski A, ZEUS Collaboration (Derrick M )   +21 more
core   +6 more sources

OMEGA PHOTOPRODUCTION [PDF]

Meson 2002, 2003
Photoproduction of omega-meson is analyzed within meson exchange model and Regge model and compared to rho-meson photoproduction. An interplay between two models and uncertainties in data reproduction are discussed.
Sibirtsev, A., Krewald, S., Tsushima, K.
openaire   +2 more sources

High energy photoproduction [PDF]

Reports on Progress in Physics, 2005
The experimental and phenomenological status of high energy photoproduction is reviewed. Topics covered include the structure of the photon, production of jets, heavy flavours and prompt photons, rapidity gaps, energy flow and underlying events. The results are placed in the context of the current understanding of QCD, with particular application to ...
Butterworth, J. M., Wing, M.
openaire   +2 more sources

Scalar meson photoproduction [PDF]

Physical Review C, 2008
Talk given at HADRON07 ...
Donnachie, A., Kalashnikova, Yu S.
openaire   +4 more sources

Charm photoproduction via fragmentation [PDF]

Zeitschrift f�r Physik C Particles and Fields, 1995
The next-to-leading open charm production in $\gamma p$ collisions is calculated within the Perturbative Fragmentation Functions formalism, to allow resummation of $\as\log(\pt^2/m^2)$ terms. In the large $\pt$ region $(\pt > m)$ the result is consistent with the fixed order NLO calculation, small discrepancies being found for very large $\pt$ and ...
M. Cacciari, GRECO, Mario
openaire   +5 more sources

Exclusive tensor meson photoproduction [PDF]

, 2020
We study tensor meson photoproduction outside of the resonance region, at beam energies of few GeVs. We build a model based on Regge theory that includes the leading vector and axial exchanges.
Albaladejo, M., Bibrzycki, L., Celentano, A., Fernandez-Ramirez, C., JPAC Collaboration, Mathieu, V., Pilloni, A., Szczepaniak, A. P.   +7 more
core   +3 more sources

Photoproduction of Axionlike Particles [PDF]

Physical Review Letters, 2019
We explore the sensitivity of photon-beam experiments to axion-like particles (ALPs) with QCD-scale masses whose dominant coupling to the Standard Model is either to photons or gluons. We introduce a novel data-driven method that eliminates the need for knowledge of nuclear form factors or the photon-beam flux when considering coherent Primakoff ...
Aloni, Daniel, Fanelli, Cristiano, Soreq, Yotam, Williams, Mike   +3 more
openaire   +3 more sources

Extraction of the D13(1520) photon-decay couplings from pion- and eta-photoproduction data [PDF]

, 1999
We compare results for the D13(1520) photon-decay amplitudes determined in analyses of eta- and pion-photoproduction data. The ratio of helicity amplitudes (A_3/2 / A_1/2), determined from eta-photoproduction data, is quite different from that determined
A.S. Bratashevskij, A.S. Bratashevskij, B. Krusche, B. Krusche, C. Caso, D.E. Lundquist, E.D. Bloom, F.A. Berends, Igor I. Strakovsky, L. Tiator, N.C. Mukhopadhyay, R.A. Arndt, R.A. Arndt, R.M. Barnett, Richard A. Arndt, Ron Workman, S.A. Dytman, T. Feuster   +17 more
core   +3 more sources

Exclusive Vector Photoproduction: Confirmation of Regge Theory [PDF]

, 1999
Recent small-t ZEUS data for exclusive rho photoproduction are in excellent agreement with exchange of the classical soft pomeron with slope alpha'=0.25 GeV^{-2}. Adding in a flavour-blind hard-pomeron contribution, whose magnitude is calculated from the
A Donnachie, Aston, Breitweg, Busenitz, Derrick, Donnachie, Donnachie, Donnachie, Donnachie, P.V Landshoff, Veneziano   +10 more
core   +2 more sources

Photoproduction of $\eta$ mesons off neutrons from a deuteron target [PDF]

, 2008
A formalism is developed for the partial wave analysis of data on meson photoproduction off deuterons and applied to photoproduction of $\eta$ and $\pi^0$ mesons.
Anisovich, A. V., Jaegle, I., Klempt, E., Krusche, B., Nikonov, V. A., Sarantsev, A. V., Thoma, U.   +6 more
core   +1 more source