Baba, K.
GAMMA DEUT --> P N
Single Differential Cross Section
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MEASUREMENT OF DIFFERENTIAL CROSS-SECTION FOR GAMMA D ---> P N BY MONOCHROMATIC PHOTONS IN THE ENERGY RANGE OF DIBARYON RESONANCES

Baba, K. ; Endo, I. ; Fukuma, H. ; et al.
Phys.Rev.Lett. 48 (1982) 729-731, 1982.
Inspire Record 180617 DOI 10.17182/hepdata.20596

The differential cross section for γd→pn has been measured in the energy range between 180 and 600 MeV at c.m. angles 15°, 30°, 42°, and 72°, by using tagged photons. The results, in particular at smaller angles, are in disagreement with theoretical calculations which take into account the effect of dibaryon resonances.

4 data tables
Table 1

FIRST TABLE IS EXACT AVERAGE CM ANGLE AGAINST PHOTON ENERGY FOR THE SECOND TABLE.

Table 2

FIRST TABLE IS EXACT AVERAGE CM ANGLE AGAINST PHOTON ENERGY FOR THE SECOND TABLE.

Table 3

FIRST TABLE IS EXACT AVERAGE CM ANGLE AGAINST PHOTON ENERGY FOR THE SECOND TABLE.

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Measurement of differential cross sections for processes $\gamma d\to p n$, $\pi^0 d$, and $p X$ in the energy range of dibaryon resonances

Baba, K. ; Endo, I. ; Fukuma, H. ; et al.
Phys.Rev.C 28 (1983) 286-293, 1983.
Inspire Record 195610 DOI 10.17182/hepdata.26333

The differential cross section for the reactions γd→pn, γd→π0d, and γd→pX has been measured by using a tagged photon beam in the energy range of dibaryon resonances. The most characteristic feature of the data for γd→pn is a forward nonpeaking angular distribution. This behavior is in complete disagreement with the existing predictions which take into account the dibaryon resonances. A phenomenological analysis is made by slightly modifying the model of the Tokyo group, but no satisfactory result is obtained. The data for γd→π0d at large angles show that the differential cross section decreases exponentially as a function of pion angle. A comparison is made with a Glauber model calculation. The result seems to be rather in favor of the existence of dibaryon resonances, but a clear conclusion is not possible because of a lack of more accurate data. In the process γd→pX, a broad peak due to quasifree pion production is observed, but the limitation of experimental sensitivity does not allow us to have a definite conclusion for the dibaryon resonance of mass 2.23 GeV conjectured by the Saclay group.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

FOR ANGLES >16 DEG THE OVERALL UNCERTAINTY IN ABSOLUTE NORMALIZATION IS ABOUT 10%.

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Deuteron Photodisintegration at Photon Energies Between 200-{MeV} and 700-{MeV} in Backward Direction

Althoff, K.H. ; Anton, G. ; Bour, D. ; et al.
Z.Phys.C 21 (1983) 149, 1983.
Inspire Record 192906 DOI 10.17182/hepdata.50170

The differential cross section of the deuteron photodisintegration was measured at a protion c.m. angle of 180 degrees and for photon energies between 180 and 730 MeV. The protons were detected in a magnetic spectrometer. The proton energy resolution varied between 30 MeV and 50 MeV FWHM. Since these are the first data at 180 degrees in this energy range a comparison can only be done with data from other laboratories extrapolated to 180 degrees and with theoretical predictions. The agreement with existing calculations is poor. Contributions of dibaryons to the cross section seem not to improve the situation.

1 data table
Table 1

BEAM ERROR D(E) = 50.000 MEV.


Two body photodisintegration of the deuteron up to 2.8-GeV

Belz, J.E. ; Potterveld, D.H. ; Anthony, P. ; et al.
Phys.Rev.Lett. 74 (1995) 646-649, 1995.
Inspire Record 399936 DOI 10.17182/hepdata.19630

Measurements were performed for the photodisintegration cross section of the deuteron for photon energies from 1.6 to 2.8 GeV and center-of-mass angles from 37° to 90°. The measured energy dependence of the cross section at θc.m.=90° is in agreement with the constituent counting rules.

1 data table
Table 1

Statistical and systematic errors have been added in quadrature. Photon energy and angle (in deg) are in center-of-mass system.


Complete angular distribution measurements of two-body deuteron photodisintegration between 0.5-GeV and 3-GeV.

The CLAS collaboration Mirazita, M. ; Ronchetti, F. ; Rossi, P. ; et al.
Phys.Rev.C 70 (2004) 014005, 2004.
Inspire Record 650821 DOI 10.17182/hepdata.31633

Nearly complete angular distributions of the two-body deuteron photodisintegration differential cross section have been measured using the CLAS detector and the tagged photon beam at JLab. The data cover photon energies between 0.5 and 3.0 GeV and center-of-mass proton scattering angles 10-160 degrees. The data show a persistent forward-backward angle asymmetry over the explored energy range, and are well-described by the non-perturbative Quark Gluon String Model.

4 data tables
Table 1

Angular distributions of the photodisintegration cross section for angle between 10 and 50 degrees in the CM.

Table 2

Angular distributions of the photodisintegration cross section for angle between 50 and 90 degrees in the CM.

Table 3

Angular distributions of the photodisintegration cross section for angle between 90 and 130 degrees in the CM.

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