A collinear model for small-x physics | Zendy

M. Ciafaloni | Zendy; Dimitri Colferai | Zendy; Gavin P. Salam | Zendy

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A collinear model for small-x physics

Author(s) -

M. Ciafaloni,

Dimitri Colferai,

Gavin P. Salam

Publication year - 1999

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/1999/10/017

Subject(s) - physics , pomeron , coupling (piping) , simple (philosophy) , space (punctuation) , position and momentum space , particle physics , scale (ratio) , differential equation , transverse plane , order (exchange) , momentum (technical analysis) , quantum electrodynamics , statistical physics , theoretical physics , mathematical physics , quantum mechanics , hadron , mechanical engineering , philosophy , linguistics , epistemology , finance , engineering , economics , structural engineering

We propose a simple model for studying small-x physics in which we take onlythe collinearly enhanced part of leading and subleading kernels, for allpossible transverse momentum orderings. The small-x equation reduces to asecond order differential equation in t=log k^2/Lambda^2 space, whoseperturbative and strong-coupling features are investigated both analyticallyand numerically. For two-scale processes, we clarify the transition mechanismbetween the perturbative, non Regge regime and the strong-coupling Pomeronbehavior.Comment: 22 pages, 8 figures, LaTeX file, uses JHEP.cl

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