Spatial Variation of Nuclear Structure Functions and Heavy Quark Production
نویسندگان
چکیده
منابع مشابه
Spatial Variation of Nuclear Structure Functions and Heavy Quark Production
We explore how nuclear modifications to the free nucleon structure functions (also known as shadowing) affect heavy quark production in collisions at different impact parameters. We assume that the nuclear modifications arise from a density dependent effect such as gluon recombination and are thus proportional to the local density. We calculate the dependence of charm and bottom quark productio...
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We review the present theoretical and experimental status of heavy quark production in high-energy collisions. In particular, we cover hadroand photoproduction at fixed target experiments, at HERA and at the hadron colliders, as well as aspects of heavy quark production in e+e− collisions at the Z0 peak. CERN-TH/97-16 February 1997 1 To appear in “Heavy Flavours II”, eds. A.J. Buras and M. Lind...
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We calculate fragmentation functions for a b-quark to fragment into color-singlet P-wave bound states c̄b in the Heavy Quark Effective Theory with the exact account of O(1/mb) corrections. We demonstrate an agreement of the obtained results with the corresponding calculations carried out in quantum chromodynamics. Introduction. The study of heavy quarkonia properties is a subject of much current...
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Using the Bethe-Salpeter (B-S) equations for heavy baryons ΛQ, ΣQ, ΞQ and ΩQ (Q = b or c), which were established in previous work, we calculate the heavy quark distribution functions in these baryons. The numerical results indicate that these distribution functions have an obvious peak at some fraction, α0, of the baryon’s light-cone “plus” momentum component carried by the heavy quark, and th...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1998
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.81.1801