Lawrence Berkeley National Laboratory
Constituent quark and diquark properties from small angle proton-proton elastic scattering at high energies
- Author(s): Bialas, A
- Bzdak, A
- et al.
Published Web Locationhttp://www.actaphys.uj.edu.pl/fulltext?series=Reg&vol=38&page=159
Small momentum transfer elastic proton-proton cross-section at high energies is calculated assuming the nucleon composed of two constituents - a quark and a diquark. A comparison to data (described very well up to -t ≈ 2 GeV2/c) allows to determine some properties of the constituents. While quark turns out fairly small, the diquark appears to be rather large, comparable to the size of the proton.