HEPData Search

Showing 4 of 4 results

Pi0 photoproduction from neutrons

Osborne, A.M. ; Brownam, A. ; Hanson, K. ; et al.

Phys.Rev.Lett. 29 (1972) 1621-1624, 1972.

Inspire Record 84571 DOI 10.17182/hepdata.21431

We have measured the ratio of the cross section for γ+n→π0+n to the cross section for γ+p→π0+p at 4.7 and 8.2 GeV. The measurements were made by detecting the recoil nucleons in coincidence with the decay γ rays of the π0's produced from a deuterium target. At 4.7 GeV the cross-section ratio, R≡σ(γ+n→π0+n)σ(γ+p→π0+p), is less than 1.0 at low t, with an indication of a dip at about t=−0.7(GeVc)2, and rises to 1.0 at high t. The ratios at the higher energy have less structure and are uniformly closer to 1.0.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

PHOTOPRODUCTION OF pi0 FROM NEUTRONS AT 4-Gev

Bolon, G.C. ; Bellenger, D. ; Lobar, W. ; et al.

Phys.Rev.Lett. 27 (1971) 964, 1971.

Inspire Record 67576 DOI 10.17182/hepdata.29303

We have measured the reaction γ+n→π0+n at a photon energy of 4 GeV for 0.2<~−t<~1.8(GeVc)2. The cross section is slightly less than that with protons as a target.

1 data table

Table 1

No description provided.

MEASUREMENTS OF PI0 PHOTOPRODUCTION CROSS-SECTIONS FOR INCIDENT GAMMA-RAY ENERGIES OF 2.0-Gev/c TO 5.0-Gev/c

Bolon, G.C. ; Garelick, C. ; Homma, S. ; et al.

Phys.Rev.Lett. 18 (1967) 926, 1967.

Inspire Record 51286 DOI 10.17182/hepdata.21770

Cross sections for the reaction γ+p→π0+p for incident gamma-ray energies of 2.0 to 5.0 GeV and for baryon four-momentum transfers squared of 0.5 to 4.0 (GeV/c)2 are presented. The results are compared with theoretical predictions based on Reggeized vector-meson exchange.

7 data tables

Table 1

'1'.

Table 2

'1'.

Table 3

'1'.