Relatore
James Ritman
(Research Center Juelich and Ruhr-University-Bochum)
Descrizione
The COoler-SYnchrotron (COSY) provides intense beams of polarized
and phase
space
cooled proton and deuteron beams with momenta up to 3.8 GeV/c for
a wide
range of
internal and extracted beam experiments. In this talk the recent
major results
from the
various detectors at this facility will be summarized. These
include the following:
the non-
observation of the exotic Theta+ particle, expressed as upper
limits of the
production
cross section; Production of excited hyperons; Studies of
eta-nucleus
interactions;
vector
meson (omega and phi) production in pp and pA reactions; and precise
measurements of
the eta and eta’ mass and width, respectively. This discussion
will be
complemented with
an overview of the main detector developments, such as the
implementation of
double
polarization experiments at ANKE, the installation of a large
volume straw tube
tracker in
the TOF experiment, and a first glimpse of data on eta decays
from the now
fully
operational WASA detector at COSY.
Autore principale
James Ritman
(Research Center Juelich and Ruhr-University-Bochum)
