Phases and Forward Cross Sections in Vector-Meson Photoproduction

1970 ◽  
Vol 2 (9) ◽  
pp. 1915-1923 ◽  
Author(s):  
Gary K. Greenhut
Keyword(s):  
Vector Meson ◽  
Cross Sections ◽  
Meson Photoproduction

scholarly journals Near threshold heavy vector meson photoproduction at LHC and EicC

2021 ◽  
Vol 81 (7) ◽  
Author(s):  
Ya-Ping Xie ◽  
V. P. Gonçalves
Keyword(s):  
Vector Meson ◽  
Cross Sections ◽  
Meson Production ◽  
Meson Photoproduction ◽  
Fixed Target ◽  
Vector Meson Production ◽  
Total Cross Sections ◽  
Low Energies ◽  
Lhcb Detector ◽  
Near Threshold

AbstractThe exclusive $$J/\Psi $$ J / Ψ and $$\Upsilon $$ Υ photoproduction in fixed - target collisions at the LHC and ep(A) collisions at the Electron ion collider in China (EicC) is investigated considering different models for the treatment of the vector meson production at low energies, close to the threshold. Results for the total cross sections and associated distributions are presented. We predict a large number of $$J/\Psi $$ J / Ψ events at the LHC in the rapidity range covered by the LHCb detector. For the EicC, our predictions point out that a detailed analysis of the near threshold $$J/\Psi $$ J / Ψ and $$\Upsilon $$ Υ photoproduction is feasible. Moreover, our results indicate that the modeling of the near threshold vector meson production can be constrained by future experimental analyzes at the LHC and EicC.

scholarly journals K0SΣ0 photoproduction at the BGO-OD experiment

2020 ◽  
Vol 241 ◽  
pp. 01009
Author(s):  
Katrin Kohl ◽  
Stefan Alef ◽  
Patrick Bauer ◽  
Reinhard Beck ◽  
Alessandro Braghieri ◽  
...  
Keyword(s):  
Vector Meson ◽  
Momentum Transfer ◽  
Cross Section ◽  
Photon Beam ◽  
Bremsstrahlung Photon ◽  
Meson Photoproduction ◽  
Accelerator Facility ◽  
Transfer Processes

The BGO-OD experiment at the ELSA accelerator facility uses an energy tagged bremsstrahlung photon beam to investigate the excitation structure of the nucleon via meson photoproduction. The setup with a BGO calorimeter surrounding the target and an open dipole spectrometer covering the for ward region is ideally suited for investigating low momentum transfer processes, in particular in strangeness photoproduction. The associated photoproduction of K0S and hyperons is essential to understand the role of K* exchange mech anisms. A cusp-like structure observed in the yp → K0SΣ+ reaction at the K* threshold is described by models including dynamically generated resonances from vector meson-baryon interactions. Such interactions are pre dicted to give a peak like structure in K0SΣ0 photoproduction off the neutron. A very preliminary cross section is determined and compared to the prediction, the results appear to support the model

scholarly journals Color dipole predictions for the exclusive vector meson photoproduction in pp , pPb , and PbPb collisions at run 2 LHC energies

2017 ◽  
Vol 96 (9) ◽  
Author(s):  
V. P. Gonçalves ◽  
M. V. T. Machado ◽  
B. D. Moreira ◽  
F. S. Navarra ◽  
G. Sampaio dos Santos
Keyword(s):  
Vector Meson ◽  
Meson Photoproduction ◽  
Color Dipole

scholarly journals RESTRICTED LOCALITY OF QUARK-HADRON DUALITY IN EXCLUSIVE MESON PHOTOPRODUCTION REACTIONS ABOVE THE RESONANCE REGION

2005 ◽  
Vol 20 (08n09) ◽  
pp. 1910-1913 ◽  
Author(s):  
QIANG ZHAO ◽  
FRANK E. CLOSE
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Scaling Laws ◽  
Resonance Region ◽  
Meson Photoproduction ◽  
Counting Rule ◽  
Dimensional Scaling ◽  
Exclusive Processes ◽  
Photoproduction Reactions ◽  
Hadron Duality

We show how deviations from the dimensional scaling laws for exclusive processes may be related to a breakdown in the locality of quark-hadron duality, i.e. the "restricted locality". For exclusive reactions like meson photo- and electroproduction above the resonance region, we explore the effects arising from such a local duality breaking and propose that it can be a possible source for oscillations about the smooth quark counting rule predicted by pQCD in the 90-degree differential cross sections.

DIFFRACTION AND VECTOR MESON PRODUCTION

2004 ◽  
Vol 19 (07) ◽  
pp. 1099-1110 ◽  
Author(s):  
Y. YAMAZAKI
Keyword(s):  
Vector Meson ◽  
Energy Dependence ◽  
Cross Sections ◽  
Meson Production ◽  
High Energy ◽  
Vector Meson Production ◽  
Diffractive Process ◽  
The Cross

A review is given of the measurements of the diffractive process in recent years from two high-energy colliders, the HERA ep collider and the Tevatron [Formula: see text] collider. The energy dependence of the cross sections and the factorisation properties of diffractive processes are discussed.

Sign in / Sign up

Export Citation Format

Share Document