کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1851919 | 1528880 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Large-x structure of physical evolution kernels in deep inelastic scattering
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Large-x structure of physical evolution kernels in deep inelastic scattering Large-x structure of physical evolution kernels in deep inelastic scattering](/preview/png/1851919.png)
چکیده انگلیسی
The modified evolution equation for parton distributions of Dokshitzer, Marchesini and Salam is extended to non-singlet deep inelastic scattering coefficient functions and the physical evolution kernels which govern their scaling violation. Considering the xâ1 limit, it is found that the leading next-to-eikonal logarithmic contributions to the physical kernels at any loop order can be expressed in term of the one-loop cusp anomalous dimension, a result which can presumably be extended to all orders in (1âx), and has eluded so far threshold resummation. Similar results are shown to hold for fragmentation functions in semi-inclusive e+eâ annihilation. Gribov-Lipatov relation is found to be satisfied by the leading logarithmic part of the modified physical evolution kernels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 687, Issues 4â5, 19 April 2010, Pages 405-409
Journal: Physics Letters B - Volume 687, Issues 4â5, 19 April 2010, Pages 405-409
نویسندگان
G. Grunberg,