תקציר
We analyze the recent results of next-to-next-to-leading (NNLO) singlet BFKL eigenvalue in N = 4 SYM written in terms of harmonic sums. The nested harmonic sums building known NNLO BFKL eigenvalue for specific values of the conformal spin have poles at negative integers. We sort the harmonic sums according to the complexity with respect to their weight and depth and use their pole decomposition in terms of the reflection identities to find the most complicated terms of NNLO BFKL eigenvalue for an arbitrary value of the conformal spin. The obtained result is compatible with the Bethe-Salpeter approach to the BFKL evolution.
שפה מקורית | אנגלית |
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מספר המאמר | 2150025 |
כתב עת | International Journal of Modern Physics A |
כרך | 36 |
מספר גיליון | 4 |
מזהי עצם דיגיטלי (DOIs) | |
סטטוס פרסום | פורסם - 10 פבר׳ 2021 |