Angular Ordering and Structure Functions at Small X
نویسنده
چکیده
We examine the effect of using an angular ordered evolution equation for the unintegrated gluon distribution at small x.
منابع مشابه
QCD coherence in the structure function and associated distributions at small x 1 Giuseppe Marchesini
We recall the origin of angular ordering of soft parton emission in the region of small x and show that this coherent structure can be detected in associated distributions. For structure functions at small x and at fixed transverse momentum the angular ordering is masked because of the complete inclusive cancellations of collinear singularities for x → 0. Therefore, in this case the dependence ...
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We compute the gluon distribution in deep inelastic scattering at small x by solving numerically the angular ordering evolution equation. The leading order contribution , obtained by neglecting angular ordering, satisfies the BFKL equation. Our aim is the analysis of the subleading corrections. Although not complete — the exact next-to-leading contribution is not yet available — these correctio...
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This talks examines the effect of angular ordering on the small-x evolution of the unintegrated gluon distribution, and discusses the characteristic function for the CCFM equation. For some time now it has been known that angular ordering [1] is an essential element in any description of small-x final state properties [2]. As a first step of a programme to study the final state in small-x physi...
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Extended Abstract. The simplest and the most common way of comparing two random variables is through their means and variances. It may happen that in some cases the median of X is larger than that of Y, while the mean of X is smaller than the mean of Y. However, this confusion will not arise if the random variables are stochastically ordered. Similarly, the same may happen if one would like to ...
متن کاملAngular Ordering and Small-x Evolution *
This talks examines the effect of angular ordering on the small-x evolution of the unintegrated gluon distribution, and discusses the characteristic function for the CCFM equation, as well as some preliminary results on final-state properties.
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تاریخ انتشار 1997