HEPData Search

We measured the π0 photoproduction differential cross section at 180° for a range of incident photon energies between 650 and 1750 MeV. The cross sections are dominated by the D13(1525), D15(1688), and F37(1920) resonances.

1 data table

Table 1

No description provided.

Differential Cross Sections in Eta Photoproduction from 0.8 to 1.45 GeV

Bloom, E.D. ; Heusch, C.A. ; Prescott, C.Y. ; et al.

Phys.Rev.Lett. 21 (1968) 1100-1103, 1968.

Inspire Record 54471 DOI 10.17182/hepdata.21721

The cross section for the process γp→pη was studied from 0.8- to 1.45-GeV incident photon energy at center-of-mass angles from 50 to 90°. The data cover a range of energies well beyond previous measurements. The results will aid in the study of I=12 nucleon isobars.

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

Pi-+ photoproduction in forward direction

Ito, A. ; Loe, R. ; Loh, E.C. ; et al.

Phys.Rev.Lett. 24 (1970) 687-690, 1970.

Inspire Record 62934 DOI 10.17182/hepdata.21670

The ratio of π− to π+ off deuterium was measured as a function of incident photon energy from 600 to 1700 MeV in the forward direction. The ratio shows a broad dip around a center-of-mass energy of 1700 MeV, resulting presumably from the collective effect of several isospin-½ resonances in this energy region. Such a change in the ratio is reflected in the rapid variation of the isoscalar photoproduction amplitude since we found the isovector photoproduction amplitude to be a relatively smooth function decreasing slowly with increasing incident photon energy.

1 data table

Table 1

No description provided.

Photoproduction of positive pions at backward angles in the energy range 1-3 gev

Alvarez, R.A. ; Cooperstein, G. ; Kalata, K. ; et al.

Phys.Rev.D 1 (1970) 1946-1960, 1970.

Inspire Record 61718 DOI 10.17182/hepdata.25170

The cross section for photoproduction of single π+ from hydrogen has been measured at laboratory angles of 110°, 127.5° and 152°, between 0.9- and 3.2-GeV incident photon energy. Measurements have been made with approximately 15% statistical accuracy at about 40 photon energies at each angle. The results agree well with the previous Caltech data of Thiessen. The cross section shows a rapid drop with increasing energy with superimposed bumps or shoulders corresponding to the N(1688), Δ(1920), and Δ(2420). A shallow minimum is observed at the N(2190) resonance.

1 data table

Table 1

No description provided.

BACKWARD PHOTOPRODUCTION OF POSITIVE PIONS ON HYDROGEN

Fischer, G. ; Fischer, H. ; Leneke, M. ; et al.

PI-1-100, 1970.

Inspire Record 1105110 DOI 10.17182/hepdata.37283

None

1 data table

Table 1

Photoproduction of k+ lambda and k+ sigma0 in hydrogen between 1.19 and 1.68 gev

Goeing, H. ; Schorsch, W. ; Tietge, J. ; et al.

Nucl.Phys.B 26 (1971) 121-133, 1971.

Inspire Record 68818 DOI 10.17182/hepdata.33752

New measurements on the reactionsγp→K + Λ and γp→K + Σ o have been performed at the DESY synchrotron at c.m. angles around 90° and photon lab. energies from 1.19 to 1.68 GeV. The produced K + mesons were analyzed by a magnet spectrometer, two thresholdCˇerenkov counters and a time-of-flight measurement. The obtained differential cross-section data show a smooth energy behaviour for the K + Λ production whereas for theK + Σ o production the data trace out a bump at a c.m. energy W ≈ 1.9GeV.

2 data tables

Table 1

No description provided.

Table 2

No description provided.