[NCTS Seminar - Particle Physics Journal Club] Measurement of nucleon GPDs with pion beams at J-PARC

  • Event Date: 2023-11-06
  • High energy phenomenology
  • Speaker: Prof. Wen-Chen Chang (Academia Sinica)  /  Host: Dr. Naoki Yamatsu
    Place: R517, New Physics Building, NTU

Title:Measurement of nucleon GPDs with pion beams at J-PARC
Time:2023/11/06 (Mon.) 12:30
Place:R517, New Physics Building, NTU

We propose to measure the pion-induced exclusive Drell-Yan process $\pi^- p \to \gamma^* n \to \mu^+\mu^- n$ using the E50 high-resolution spectrometer in the high-momentum beamline of Hadron Hall at J-PARC. The cross sections of this novel reaction will provide interesting information about the proton generalized parton distributions (GPDs) and the pion distribution amplitudes (DAs) through a timelike approach. The strategies and road maps for carrying out this measurement will be sketched.