Speaker
Description
Antiproton beams provide a unique probe of hadronic matter through gluon-rich annihilation processes, offering exceptional opportunities for spectroscopy of conventional and exotic hadrons as well as studies of hyperon production and baryon-antibaryon dynamics. Following a decades-long decline in medium-energy antiproton facilities, new initiatives at the J-PARC Hadron Experimental Facility are opening promising prospects for a renewed antiproton physics programme.
This presentation will discuss the scientific opportunities enabled by the planned high-momentum beamlines, $\pi20$ and $K10$, which are expected to deliver intense antiproton beams covering the medium-energy region inaccessible to existing facilities. Their broad momentum reach and high beam intensities provide access to a largely unexplored domain for hadron spectroscopy, including strange and charmed hadrons, exotic states, and investigations of non-perturbative QCD in a gluon-rich environment. Physics opportunities beyond hadron spectroscopy, such as precision measurements of antimatter interactions relevant to cosmic-ray experiments, will also be highlighted.
The status of the J-PARC antiproton programme, ongoing beamline developments, and the growing international effort to establish J-PARC as a major centre for medium-energy antiproton physics will be presented, together with perspectives for future experiments and international collaboration.
