p¯n Elastic Scattering from -t=0.15 to 1.0 (GeV/c)2 at 3.5 GeV/c
Abstract
We have measured the p¯n differential elastic cross section in the four-momentum-transfer region of -t=0.15 to 1.0 (GeV/c)2 using neutron scatters obtained in a p¯d bubble chamber experiment at 3.5 GeV/c. The p¯n elastic cross section is similar to the p¯p cross section at this energy to the extent that both cross sections exhibit a diffraction peak and a dip at -t~=0.45 followed by a secondary peak. A comparison of p¯n and p¯p elastic scattering indicates a crossing of the two cross sections near the region of the dip. The results of this experiment suggest the presence of an I=1, t-channel exchange in N¯N scattering.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 1970
- DOI:
- 10.1103/PhysRevLett.24.1251
- Bibcode:
- 1970PhRvL..24.1251R