Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-09-28
Phys.Lett.B655:236-240,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 4 figures, NLL-BFKL saddle-point approximation now compared with exact integration, version to appear in PLB
Scientific paper
10.1016/j.physletb.2007.08.088
We show that next-leading logarithmic (NLL) Balitsky-Fadin-Kuraev-Lipatov (BFKL) effects can be tested by the forward-jet cross sections recently measured at HERA. For d\sigma/dx, the NLL corrections are small which confirms the stability of the BFKL description. The triple differential cross section d\sigma/dxdk_T^2dQ^2 is sensitive to NLL effects and opens the way for an experimental test of the full BFKL theoretical framework at NLL accuracy.
Kepka Oldrich
Marquet Ch.
Peschanski Robert
Royon Ch.
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