Radial excitation of the nucleon to the P(11) (1440-MeV) resonance in alpha proton scattering
19924 pages
Published in:
- Phys.Rev.Lett. 69 (1992) 1336-1339
Experiments:
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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
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