Submitted by firstname.lastname@example.org on Mon, 27/10/2014 - 17:47.
Written contribution to Quarks2014, Suzdal, Russia, June 2-8, 2014
(Deadline October 31)
A high intensity antiproton beam of momentum up to 15 GeV/c will be available at FAIR in next future. The PANDA experiment, which is integrated in the storage ring for antiprotons, is at the center of the hadron physics program at this facility. It includes among other topics like hadron spectroscopy in the charmonium mass region, hyperon physics and electromagnetic processes. This contribution describes the facility, the detector and the relevant physics issues, with special focus on electromagnetic proton form factors in the time-like region.
Submitted by karin.schonning... on Wed, 03/09/2014 - 15:31.
Spin observables provide a powerful tool in understanding the physics. Seven
polarisation parameters of the Omega baryon can be extracted from the angular distributions of the
hyperon decay and studied with the future PANDA experiment at FAIR. Simulation studies
show that strange and single charmed hyperon channels have great prospects with PANDA.
Submitted by felice.iazzi@po... on Thu, 07/08/2014 - 17:40.
In order to fulfill the goal of producing high rates of doubly strange hyperons the ¯PANDA
collaboration will use the antiproton ring HESR at the future facility FAIR. The low energy
hyperon production by an antiproton beam requires to insert a solid target inside the ring.
Unwanted side effects of such an insertion are the overwelming amount of annihilations, which
would make the detectors blind, and the fast depletion of the bunch, which circulates inside the
ring. The use of a very thin target and the technique of beam steering seem to be a satisfactory
solution to the above problems and will be described here.
Submitted by felice.iazzi@po... on Thu, 07/08/2014 - 17:36.
In the future hadron facility FAIR the HESR ring will supply antiprotons in the
momentum range 1.5-15 GeV/c as projectiles for charm, strangeness and Form Factor physics.
For all the reactions it will be necessary to use internal targets and in particular, for the
double strangeness production, a solid 12C target will be used. Inserting a solid target inside
an antiproton ring creates two main problems: a large background on the detectors due to the
overwhelming amount of annihilations and a strong depletion of the beam due to all the hadronic
and Coulomb interactions of the antiprotons with the 12C nuclei. The width of the target plays
a crucial role in minimizing these unwanted eects. Two wire-shaped prototypes have been
already realized, starting from a thin diamond disk. The wire shape has been obtained by using
a femto-edge laser. One prototype has been submitted to irradiation by protons of 1.5 MeV and
to simultaneous Back-Scattering control to test the impurity level, the surface 12C density, the
radiation hardness and eventual phase modications during irradiation. Both the prototypes
have been submitted to Micro-Raman spectroscopy in order to scan the carbon phases along
the width. The results show performances which satisfy the experimental requirements.