Pomeron in diffractive processesγ*(Q2)p→ρ0pandγ*(Q2)p→γ*(Q2)pat largeQ2: The onset ofpQCD
نویسندگان
چکیده
منابع مشابه
Extracting the Pomeron-Pomeron Cross Section from Diffractive Mass Spectra
We have calculated the mass distribution (dσ/dMX ) as observed by UA8 Collaboration in the inclusive reaction pp̄ → pXp̄ at √s = 630GeV , using the Interacting Gluon Model (IGM) with Double Pomeron Exchange (DPE) included. The only new parameter is the IP -IP cross section, which we can extract from fitting experimental data. We compare our results with the values obtained in the UA8 study. Assum...
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Diffractive scattering involves exchange of a Pomeron to make a rapidity gap. It is normally assumed that to get a hard scattering in diffraction, one may treat the Pomeron as an ordinary particle, which has distributions of gluons and quarks. We show that this is not so: When we use perturbative QCD, there is a breakdown of the factorization theorem. The whole Pomeron can initiate the hard sca...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1999
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.60.074011