Conveners
Parallel session C3
- Hiroyuki Noumi (Osaka University)
This contribution describes plans and performance studies for the upcoming pion beam program at GSI. The program will utilize high-intensity secondary pion beams ($< 2.8$ GeV/$c$) in conjunction with the High-Acceptance Di-Electron Spectrometer (HADES), which offers large geometric acceptance, high positional and time-of-flight resolution, as well as dedicated dilepton detection capabilities....
The J-PARC E16 experiment is designed to study in-medium modifications of vector-meson mass spectra in 30-GeV proton–nucleus reactions through the $e^+ e^-$ decay channel. The experiment is being carried out at the high-momentum beamline of the J-PARC Hadron Experimental Facility with a dielectron spectrometer designed for high-rate and large-acceptance measurements in 30 GeV proton–nucleus...
The J-PARC E88/SA$\Phi$RE experiment aims to investigate the properties of the $\phi$ meson inside the nucleus, to study in-medium modification associated with partial restoration of chiral symmetry in nuclear matter. The $\phi$ meson is measured via the hadronic decay channel $\phi \to K^+ K^-$ in proton–nucleus collisions using a 30 GeV/c proton beam. Compared to previous measurements, E88...
At the high-momentum beamline of the J-PARC Hadron Experimental Facility, efforts are underway to develop a secondary beam mode. In the secondary mode, we will be able to utilize meson beams such as pions and kaons as well as anti-protons up to 20 GeV/$c$ for various experiments in hadron physics and other research fields. Charmed-baryon spectroscopy with a 20 GeV/$c$ $\pi^−$ beam (E50) will...
Utilizing Initial State Radiation (ISR) events, the hadronic cross section in electron-positron ($e^+e^-$) production can be measured over a wide energy range at $e^+e^-$ colliders. Due to the high luminosity at beam energies between 1.8 and 5.0 GeV, the BESIII experiment at the BEPCII collider is particularly well-suited for this purpose. Since ISR photons are predominantly emitted at small...
