Truncated Balitskiĭ-Fadin-Kuraev-Lipatov series and hadronic collisions
Abstract
We study the contribution of a truncated Balitskiĭ-Fadin-Kuraev-Lipatov Pomeron series to the hadronic processes showing that a reliable description is obtained using two orders in perturbation theory. The pp(pp¯) total cross sections are described with good agreement, consistent with the unitarity bound. We also calculate the elastic-scattering amplitude at nonzero momentum transfer t, introducing two distinct Ansätze for the proton impact factor. As a by product the elastic differential cross section is obtained at the small t approximation and compared with the data, describing with good agreement this observable for both low- and high-energy values.
- Publication:
-
Physical Review D
- Pub Date:
- May 2001
- DOI:
- 10.1103/PhysRevD.63.094018
- arXiv:
- arXiv:hep-ph/0009011
- Bibcode:
- 2001PhRvD..63i4018G
- Keywords:
-
- 12.38.Bx;
- 13.60.Hb;
- Perturbative calculations;
- Total and inclusive cross sections;
- High Energy Physics - Phenomenology
- E-Print:
- 17pp, 6 figures, uses jhep.cls. Some text modifications, 2 figures added. Version to appear in Physical Review D