Radial excitation of the nucleon to the P(11) (1440-MeV) resonance in alpha proton scattering

1992
4 pages
Published in:
  • Phys.Rev.Lett. 69 (1992) 1336-1339
Experiments:

Citations per year

1992199920062013202002468
Abstract: (APS)
The energy region from the π threshold up to the Roper resonance N(1440) has been investigated in inelastic α scattering on hydrogen using α particles from SATURNE with a beam momentum of 7 GeV/c. In addition to projectile excitation, excitation of the P11(1440 MeV) resonance has been observed for the proton, indicating a strong monopole excitation. From this a value of the nucleon compressibility of 1.4±0.3 GeV is extracted.
  • p nucleus: nuclear reaction
  • helium
  • N(1440)
  • differential cross section: angular dependence
  • angular dependence: differential cross section
  • magnetic spectrometer: experimental results
  • Saclay PS
  • 1.75 GeV/c/nu