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ASYMMETRY IN SINGLE pi0 PHOTOPRODUCTION BY POLARIZED gamma RAYS ON PROTONS

Bologna, G. ; Fabbri, F.L. ; Spillantina, P. ; et al.
LNF-70-39, 1970.
Inspire Record 1105046 DOI 10.17182/hepdata.37903

None

1 data table match query
Table 1

No description provided.


Study of k- pi- scattering using the reaction k- d ---> k- pi- p p(s)

Cho, Y. ; Derrick, M. ; Johnson, D. ; et al.
Phys.Lett.B 32 (1970) 409-412, 1970.
Inspire Record 63111 DOI 10.17182/hepdata.28719

Approximately 700 events of the reaction K − d → K − π − pp s produced by 5.5 GeV/ c kaons were used to measure the cross section for Kπ elastic scattering in the T = 3 2 state by a Chew-Low extrapolation. The cross section does not exceed 2.1 mb and has no structure for Kπ masses from threshold up to 2.0 GeV.

1 data table match query
Table 1

Chew-Low extrapolation is used for evaluation of the K- P elastic cross section.


Proton form factors from elastic electron-proton scattering

Janssens, T. ; Hofstadter, R. ; Hughes, E.B. ; et al.
Phys.Rev. 142 (1966) 922-931, 1966.
Inspire Record 49127 DOI 10.17182/hepdata.26698

Absolute measurements of the elastic electron-proton cross section have been made with a precision of about 4% for values of the square of the four-momentum transfer, q2, in the range 6.0 to 30.0 F−2 and for electron scattering angles in the range 45° to 145°. To within the experimental errors, it is found that the charge and magnetic form factors of the proton have a common dependence on q2 when normalized to unity at q2=0, and that an accurate representation of the behavior of the form factor and that of the cross sections themselves can be given in terms of a three-pole approximation to the dispersion theory of nucleon form factors.

10 data tables match query
Table 1

Axis error includes +- 2./2. contribution (RANDOM ERROR).

Table 2

Axis error includes +- 2./2. contribution (RANDOM ERROR).

Table 3

Axis error includes +- 2./2. contribution (RANDOM ERROR).

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Electromagnetic Properties of the Proton and Neutron

Olson, D.N. ; Schopper, H.F. ; Wilson, R.R. ;
Phys.Rev.Lett. 6 (1961) 286-290, 1961.
Inspire Record 944908 DOI 10.17182/hepdata.20172

None

1 data table match query
Table 1

No description provided.


Photoproduction of Neutral Pions at Forward Angles

Berkelman, Karl ; Waggoner, James A. ;
Phys.Rev. 117 (1960) 1364-1375, 1960.
Inspire Record 46817 DOI 10.17182/hepdata.26899

The bremsstrahlung beam of the Cornell Bev electron synchrotron has been used to study the reaction γ+p→π0+p over the photon energy range 250 Mev to 1 Bev, and for center-of-mass pion angles between 20° and 70°. The recoil protons, of energies between 10 and 60 Mev, were identified and their energies determined using a range telescope of eight thin plastic scintillators enclosed in a vacuum chamber with the thin liquid hydrogen target. Correlated pulse-height information was obtained by photographing an oscilloscope display and was used to sort out the protons from mesons and electrons. Corrections were made for the background of photoprotons from the Mylar target cup, the energy loss of the protons in the liquid hydrogen, absorption and scattering in the counter telescope, and the variation of beam intensity profile with energy. Compared with previous experiments and extrapolations the results show a somewhat smaller forward differential cross section above 400 Mev. The angular distributions obtained from a least-squares fit to all existing data indicate a d32 assignment for the 760-Mev resonance level. Other implications of the data are also discussed.

1 data table match query
Table 1

No description provided.


Photoproduction of pi+ Mesons from Hydrogen in the Region 350-900 Mev

Heinberg, M. ; McClelland, W.M. ; Turkot, F. ; et al.
Phys.Rev. 110 (1958) 1211-1212, 1958.
Inspire Record 46812 DOI 10.17182/hepdata.26860

None

1 data table match query
Table 1

No description provided.