Реджевські розрізи і BFKL у наближенні NNLLA
In the leading and next-to-leading logarithmic approximations, QCD amplitudes with gluon quantum numbers in cross-channels and negative signature have the pole form corresponding to a reggeized gluon. The famous BFKL equation was derived using this form. In the next-to-next-to-leading approximation...
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| Date: | 2019 |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
Publishing house "Academperiodika"
2019
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| Online Access: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019486 |
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| Journal Title: | Ukrainian Journal of Physics |
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Ukrainian Journal of Physics| Summary: | In the leading and next-to-leading logarithmic approximations, QCD amplitudes with gluon quantum numbers in cross-channels and negative signature have the pole form corresponding to a reggeized gluon. The famous BFKL equation was derived using this form. In the next-to-next-to-leading approximation (NNLLA), the pole form is violated by contributions of Regge cuts. We discuss these contributions and their impact on the derivation of the BFKL equation in the NNLLA. |
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| DOI: | 10.15407/ujpe64.8.678 |