PANDA Phase One

Abstract

The Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany, provides unique possibilities for a new generation of hadron-, nuclear- and atomic physics experiments. The future antiProton ANnihilations at DArmstadt (PANDA or $$\overline{\mathrm{P}}$$ P ¯ ANDA) experiment at FAIR will offer a broad physics programme, covering different aspects of the strong interaction. Understanding the latter in the non-perturbative regime remains one of the greatest challenges in contemporary physics. The antiproton–nucleon interaction studied with PANDA provides crucial tests in this area. Furthermore, the high-intensity, low-energy domain of PANDA allows for searches for physics beyond the Standard Model, e.g. through high precision symmetry tests. This paper takes into account a staged approach for the detector setup and for the delivered luminosity from the accelerator. The available detector setup at the time of the delivery of the first antiproton beams in the HESR storage ring is referred to as the Phase One setup. The physics programme that is achievable during Phase One is outlined in this paper.

Dynamical Properties of Baryons

“…A number of resonances, in correspondence with light vector mesons, would occur in the unphysical region, i.e., the TL region lying below the production threshold. Note that this region will be accessible through the reactionpp → e + e − π 0 [26,27] at the PANDA@FAIR facility [28] in near future.…”

Description of (Hyper-)Fragments in Hadron-Induced Reactions

“…The PANDA project at GSI, FAIR, is a promising experimental example. For PANDA, they proposed a two-step reaction using primarily anti-proton and secondary Ξ beams on light nuclear targets [57]. The reasons of doing so are discussed in the next figures.…”

Study of the nucleon structure with the PANDA experiment at FAIR

“…However, in the initial start-up phase of the FAIR operation, a luminosity about a factor of 20 lower than the nominal design value will be available (PANDA-Phase1 and Phase2). The physics program [1,2] includes hadron spectroscopy in the charmonium, hyperon and light quark sectors, hypernuclear physics, and studies of hadron properties in a nuclear medium. An important part of the PANDA physics program will be dedicated to the investigation of the nucleon structure.…”

“…Recently, precise measurements of the time-like proton FFs have been provided by the BESIII collaboration [4]. Uncertainties on the FF ratio |G E |/|G M | better than 10% have been achieved in the q 2 range between 4 (GeV/c) 2 and 5 (GeV/c) 2 .…”

“…The modulus of the time-like proton FFs will be measured at PANDA in the annihilation processes pp → e + e − and pp → µ + µ − . Feasibility studies for the measurement of these two processes at PANDA have been performed based on Monte Carlo simulations within the PANDARoot framework at different q 2 values between 5 (GeV/c) 2 and 14 (GeV/c) 2 [2,5,6]. The difficulty of these measurements is related to the hadronic background, mainly from the annihilation process pp → π + π − .…”