Analyticity constraints on the landshoff-donnachie fit to total cross sections
Abstrak
Landshoff and Donnachie [A. Donnachie and P. V. Landshoff, Phys. Lett. B 296, 227 (1992).; P. V. Landshoff, hep-ph/0509240] parametrize the energy behavior of pp and pp scattering cross sections with five parameters, using: {sigma}{sup +}=56.08s{sup -0.4525}+21.70s{sup 0.0808} for pp, {sigma}{sup -}=98.39s{sup -0.4525}+21.70s{sup 0.0808} for pp. Using the four analyticity constraints of Block and Halzen [M. M. Block and F. Halzen, Phys. Rev. D 72, 036006 (2005).], we simultaneously fit the Landshoff-Donnachie form to the same sieved set of pp and pp cross section and {rho} data that Block and Halzen used for a very good fit to a ln{sup 2}s parametrization. We show that the satisfaction of the analyticity constraints will require modification of the Landshoff-Donnachie parametrization for lower energies, thus altering its inherent appeal of simplicity and universality.
Topik & Kata Kunci
Penulis (2)
M. M. Block
F. Halzen
Akses Cepat
- Tahun Terbit
- 2006
- Bahasa
- en
- Total Sitasi
- 1×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1103/PhysRevD.74.117501
- Akses
- Open Access ✓