===Notes===

Abstract in work* The PANDA experiment represents the central part of the hadron physics branch of the antiproton program of the new Facility for Antiproton and Ion Research (FAIR) at Darmstadt/Germany. It will investigate antiproton annihilations with an almost 4$\pi$ acceptance double spectrometer in the momentum range of 1.5~GeV/c to 15~GeV/c.

The gluon rich reaction product of antiproton-proton and antiproton-nucleus collisions on one hand and the high intensity and phase space cooled antiproton beam of the HESR on the other hand constitutes an ideal environment to study the sector of non-conventional hadronic states. Of particular interest for PANDA is the search for exotic states of the charmonium region, the interaction of charm hadrons in the nuclear medium, the investigation of the nuclear potential with double-hypernuclei produced, hyperon-hyperon interactions and the study of various aspects on the nucleon structure with electromagnetic processes.

With novel design of the detector as well as of the data readout PANDA faces the challenges of the necessary momentum resolution (1~$\%$), high dynamic range $\gamma$-detection (few MeV to 10~GeV) and a high range charged particle identification capability (several hundred MeV to some GeV for electrons ,pions , kaons, protons and muons). For the operation at the high reaction rate of $2\times10^7/s$ with different parallel physical topologies a self-triggering readout scheme was adopted where the frontend electronics continuously digitizes the detector data and autonomously finds valid hits.

An overview of the new generation hadron physics experiment PANDA, the apparatus and the rich spectroscopy program on exotic hadrons will be presented.

The new Facility for Antiproton and Ion Research (FAIR) at Darmstadt/Germany signed since October 2010 will provide besides an ambitious and vast heavy ion, plasma and atomic physics program and outstanding branch for antiproton physics. (Antiprotons produced at 3 GeV should be decelerated down to 100 keV?? for various applications and accelerated to up to 15 GeV for unprecedented studies of the regime between perturbative theory and quark confinement.)

The PANDA Experiment representing the central part of the hadron physics program of the new Facility for Antiproton and Ion Research (FAIR) at Darmstadt/Germany will ivestigate antiproton annihilations with an almost 4$\pi$ acceptance double spectrometer.

Novel design emc high dynamic range from few MeV to 10 GeV PID from several hundred MeV to some GeV electron,pions , kaons, protons and muons momentum resolution of 1% For the operation of 2times10to7 with different parallel physical topologies a self-triggering readout scheme was adopted.

high acceptance-PWA self-triggering readout scheme for high rate operation and different parallel physical topology where the frontend electronics continuously digitizees the detector data and autonomously finds valid hits.

the experiment focusses on hadron spectroskopy in particular search for exotic states of the charmonium region (momentum, acceptance PWA, annihilation gluon rich) interaction of char hadrons in the nuclear medium on double-hypernuclei (to investigate the nuclear potential) hyperon-hyperon interactions elecrtromagnetic processes (to study various aspects on nucleon structure)

It will study antiproton-proton and antiproton-nucleus collisions with a solenoid containing an almost 4$\pi$ electromagnetic calorimeter, cherencov detectors with a large solid angle coverage excellent particle tracking and a forward dipole for further separation of charged tracks. One of the challenges of the apparatus will be the extremely high rate of 2times10to7 average collisions. The data acquisition runs in the continuous mode since no start detector is planned not to disturb the vertex reconstruction. (lars) (Various solutions for parts of the detector are still under consideration as well as the usage of a barrel time of flight detector.) The excellent charged particle identification system of the detector and the capability of measuring the same time uncharged particles and photons together with the phase space cooled antiproton beam from the HESR storage ring at FAIR make PANDA a unique tool for precise measurements of the strong interaction and test of the standard model. Further on the gluon rich reaction product of antiproton-proton collisions is the ideal environment to study the sector of non-conventional hadronic states. Thus new answers for a big field of physics questions become available. An overview of the PANDA experiment, the apparatus and the rich spectroscopy program on exotic hadrons will be presented as well a comparison with existing and future experiments (B-Factories).

-- GeorgSchepers - 14 Feb 2011
Topic revision: r1 - 2011-02-14, GeorgSchepers

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