Differential Cross-Sections for Pion-Proton Bremsstrahlung at 269-MeV, 298-MeV, and 324-MeV

Dec, 1977
55 pages
Published in:
  • Phys.Rev.D 18 (1978) 3911
Report number:
  • Print-77-1026 (UCLA)

Citations per year

1978198920002011202201234567
Abstract: (APS)
We present the results of new measurements of pion-proton bremsstrahlung (π+p→π+pγ and π−p→π−pγ) at incident kinetic energies of 269 and 324 MeV, together with the final version of our earlier published results at 298 MeV. We have obtained differential cross sections over a wide range of photon angles, at photon energies between 15 and 150 MeV. The differential cross section in all 108 spectra decreases monotonically with increasing photon energy and its gross features agree with the external-emission-dominance calculation. Application of the model of Pascual and Tarrach to our data yields for the magnetic dipole moment of the Δ++(1232) resonance the result +4.7μN<μΔ++<6.7 μN, where μN=eℏ2mpc. This agrees with the SU(6) prediction of +5.6μN.
  • PI+ P: BREMSSTRAHLUNG
  • BREMSSTRAHLUNG: PI+ P
  • P: FINAL STATE
  • FINAL STATE: P
  • PI+: FINAL STATE
  • FINAL STATE: PI+
  • PHOTON: FINAL STATE
  • FINAL STATE: PHOTON
  • PI- P: BREMSSTRAHLUNG
  • BREMSSTRAHLUNG: PI- P