New scaling in high energy DIS
نویسندگان
چکیده
منابع مشابه
New Scaling in High Energy Dis
We develop a new approach for solving the non-linear evolution equation in the low xB region and show that the remarkable “geometric” scaling of its solution holds not only in the saturation region, but in much wider kinematical region. This is in a full agreement with experimental data (Golec-Biernat, Kwiecinski and Stasto). TAUP-2659-2000 February 1, 2008 e-mail: [email protected] e-mail:...
متن کاملScaling Phenomena from Non-Linear Evolution in High Energy DIS
The numerical solutions of the non-linear evolution equation are shown to display the “geometric” scaling recently discovered in the experimental data. The phenomena hold both for proton and nucleus targets for all x below 10−2 and 0.25GeV2 ≤ Q2 ≤ 2.5 × 103 GeV2. The scaling is practically exact (few percent error) in the saturation region. In addition, an approximate scaling is found in the va...
متن کاملHigh Density Parton Shadowing Corrections in Dis Scaling Violations *
The description of the dynamics at high density parton regime is one of the main open questions of the strong interactions theory. In this paper we address the shadowing corrections (SC) in the scaling violations of the F2 structure function using the eikonal approach. We propose a procedure to estimate the distinct contributions to the SC for F2 and its slope and show that the recent ZEUS data...
متن کاملGeometric Scaling and QCD Dynamics in DIS
DIS data from HERA show a striking regularity as σγ p is a function of the ratio τ = Q/Qs(x) only. The scaling function shows a break at τ ≈ 1, which has been taken as an indication for saturation. However, besides saturation also the transition between dominance of k⊥-ordered (DGLAP) and k⊥-non-ordered (BFKL) evolution contributes to a break around this value of τ , as well as the suppression ...
متن کاملLessons and Puzzles of Dis at Low X ( High Energy )
This talk is a rather sceptical review of our knowledge and understanding of deep inelastic scattering at low x ( high energy). We show that the well known success of the DGLAP evolution equations in describing of experimental HERA data brought more problems and puzzles than answers. We advocate that more systematic theoretical and experimental investigations of the nonperturbative QCD are need...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2001
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(01)00590-5