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Observation of an Anomalous Structure in Proton Polarization from Deuteron Photodisintegration

Kamae, T. ; Arai, I. ; Fujii, T. ; et al.
Phys.Rev.Lett. 38 (1977) 468, 1977.
Inspire Record 110084 DOI 10.17182/hepdata.21021

Proton polarization in γd→pn has been measured at c.m. angle around 90° and photon energies from 325 to 725 MeV. The polarization increases sharply with the photon energy, reaching a high maximum of (-80±8)% around 500-550 MeV. Such a high polarization with a sharp energy dependence seems to indicate a new effect in the dibaryon system.

1 data table
Table 1

No description provided.


Cross-Sections for the Photodisintegration of Deuterium at Intermediate-Energies

Dougan, P. ; Ramsay, V. ; Stiefler, W. ;
Z.Phys.A 276 (1976) 55-64, 1976.
Inspire Record 99793 DOI 10.17182/hepdata.16618

The cross-sections for deuteron photo-disintegration have been measured at nine c.m. angles from 37 to 143 degrees. The minimum and maximum photon energies have been 139 and 832 MeV respectively. The results are in agreement with earlier data above 300 MeV, but are significantly larger below 200 MeV, the discrepancies being up to 50% at the lowest energies measured.

9 data tables
Table 1

MEAN SCATTERING ANGLE FOR THIS DATA GROUP IS 36.9 DEG.

Table 2

MEAN SCATTERING ANGLE FOR THIS DATA GROUP IS 53.1 DEG.

Table 3

MEAN SCATTERING ANGLE FOR THIS DATA GROUP IS 66.4 DEG.

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Measurements of the Polarization of Protons from Deuteron Photodisintegration

Liu, F.F. ; Lundquist, D.E. ; Wiik, B.H. ;
Phys.Rev. 165 (1968) 1478-1482, 1968.
Inspire Record 944944 DOI 10.17182/hepdata.26514

The polarization of the proton produced by the photodisintegration of the deuteron has been measured at several angles for photon energies between 170 and 450 MeV. The polarization is found to be around -0.20 (Basel convention) for 90° c.m. and photon energies between 200 and 300 MeV. This is in reasonable agreement with a calculation by D. George based upon the Austern model. However, the calculation fails to explain the strong increase in polarization with increasing photon energies. At a photon energy of 450 MeV and 90° c.m. the proton polarization is as large as -0.60.

1 data table
Table 1

No description provided.