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RECOIL PROTON POLARIZATION OF PROTON COMPTON SCATTERING IN THE RESONANCE REGION

Wada, Y. ; Kato, S. ; Miyachi, T. ; et al.
Nuovo Cim.A 63 (1981) 57-70, 1981.
Inspire Record 170488 DOI 10.17182/hepdata.37543

The recoil proton polarization of proton Compton scattering (γp→γp) was measured in the photon energy range from 500 MeV to 1000 MeV atθ∗=100° and from 400MeV to 800 MeV atθ∗=130°. A recoil proton and a scattered photon were detected in coincidence with a magnetic spectrometer and a photon detector. The recoil proton polarization was measured with a carbon polarimeter. The results are compared with a phenomenological analysis based on an isobar model and a dynamical analysis based on the dispersion relation.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Recoil Proton Polarization of Neutral Pion Photoproduction From Proton in the Energy Range Between 400-{MeV} and 1142-{MeV}

Kato, S. ; Miyachi, T. ; Sugano, K. ; et al.
Nucl.Phys.B 168 (1980) 1-16, 1980.
Inspire Record 142131 DOI 10.17182/hepdata.34517

The recoil proton polarization of the reaction γ p → π 0 p was measured at a c.m. angle of 100° for incident photon energies between 451 and 1106 MeV, and at an angle of 130° for energies from 400 to 1142 MeV. One photon, decayed from a π 0 meson, and a recoil proton were detected in coincidence. Two kinds of polarization analyzer were employed. In the range of proton kinetic energy less than 420 MeV and higher than 346 MeV, carbon plates and liquid hydrogen were used for determining the polarization, respectively. The data given by the two polarimeter systems are in good agreement. Results are compared with recent phenomenological analyses. From the comparison between the present data and the polarized target data, the invariant amplitude A 3 can be estimated to be small.

4 data tables
Table 1

RESULT WITH THE CARBON POLARIMETER.

Table 2

RESULT WITH THE CARBON POLARIMETER.

Table 3

RESULT WITH THE HYDROGEN POLARIMETER.

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Differential Cross-sections of the Proton Compton Scattering in the Resonance Region

Ishii, T. ; Egawa, K. ; Kato, S. ; et al.
Nucl.Phys.B 165 (1980) 189-208, 1980.
Inspire Record 142130 DOI 10.17182/hepdata.34584

Differential cross sections of proton Compton scattering have been measured in the energy range between 375 MeV and 1150 MeV in steps of 25 MeV at c.m. angles of 130°, 100° and 70°. The recoil proton was detected with a magnetic spectrometer. In coincidence with the proton, the scattered photon was detected with a lead-glass Čerenkov counter of the total absorption type.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.