Charm photoproduction at DESY HERA:kTfactorization versus experimental data
نویسندگان
چکیده
منابع مشابه
Phenomenological study of charm photoproduction at HERA
We present predictions for single inclusive distributions of charmed mesons, relevant to the HERA experiments. Our results are based upon a computation that correctly incorporates mass effects up to the next-to-leading order level, and the resummation of transverse momentum logarithms up to next-to-leading-logarithmic level. We apply the same acceptance cuts as the H1 and Zeus experiments, and ...
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The cross section of the D *-meson diffractive photoproduction at the HERA collider has been calculated in the framework of perturbatively motivated model for the different kine-matic regions. The camparison between the different Pomeron models has been performed.
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Charm photoproduction rates off nuclei below the nucleon threshold are estimated using the phenomenologically known structure functions both for x < 1 and x > 1. The rates rapidly fall below the threshold from values ∼10 pb for Pb close to the threshold (at 7.5 GeV) to ∼1pb at 6 GeV.
متن کاملCharm Photoproduction via Fragmentation
The next-to-leading open charm production in γp collisions is calculated within the Perturbative Fragmentation Functions formalism, to allow resummation of αs log(p 2 T /m 2) terms. In the large pT region (pT > m) the result is consistent with the fixed order NLO calculation, small discrepancies being found for very large pT and at the edge of phase space. The two approaches differ in the defin...
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Dijet angular distributions of photoproduction events in which a D meson is produced in association with one of two energetic jets have been measured with the ZEUS detector at HERA, using an integrated luminosity of 120 pb. Differential cross sections as a function of the angle between the charm-jet and the proton-beam direction in the dijet rest frame have been measured for samples enriched in...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2007
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.75.014028