New data and the hard pomeron
نویسندگان
چکیده
منابع مشابه
Hard Pomeron model
The inclusive production of several jets is studied in the framework of the hard pomeron model. The average jet momenta are found to be strongly ordered and growing towards the central c.m. rapidity, as expected. Strong positive correlations are found for pairs of jets neighbouring in rapidity, both in the forward-backward and forwardforward directions. ∗Permanent address: Dep. High-Energy Phys...
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It is shown that direct photons provide a leading twist mechanism for diffractive jet production in which the jets carry away all of the momentum lost by the proton. Two-photon processes are thus expected to asymptotically dominate “super-hard” pomeron events in ep collisions. We report the expected rates from these events for recent ZEUS and H1 data cuts. We also estimate the direct photon con...
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The QCD dipole model [ 1] happens to be a quite useful representation of the QCD perturbative resummation at leading logarithms at high incident energy (or, equivalently, at small Bjorken x) known as the BFKL QCD Pomeron [ 2]. On a phenomenological ground, it provides an “s-channel” description of hard diffraction [ 3] which appears to be quite successful in describing the present data at HERA ...
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We discuss the observed scaling of the small-x diffractive and total deepinelastic structure functions at HERA. We argue that the parton interpretation of Buchmüller and Hebecker can be understood within QCD as the appearance of the Pomeron in a Super-Critical phase. In diffractive hard scattering, the Pomeron appears as reggeized gluon exchange in a color-compensating background field. The for...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2001
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(01)01048-6