Bounds on the soft pomeron intercept
1997; Elsevier BV; Volume: 395; Issue: 3-4 Linguagem: Inglês
10.1016/s0370-2693(97)00046-4
ISSN1873-2445
AutoresJean-René Cudell, Kyungsik Kang, Sung Ku Kim,
Tópico(s)Quantum Chromodynamics and Particle Interactions
ResumoThe Donnachie-Landshoff fit of total cross sections has now become a standard reference for models of total, elastic and diffractive cross-sections. Adopting their philosophy that simple-pole exchanges should account for all data to present energies, we assess the uncertainties on their fits. Our best estimate for the pomeron intercept is $1.096^{+0.012}_{-0.009}$, but several models have a good chi square for intercepts in the range [1.07,1.11].
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