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arXiv · 2305.19854

Next-to-leading BFKL evolution for dijets with large rapidity separation at different LHC energies

Anatolii Iu. Egorov·Victor T. Kim
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Abstract

The calculations based on the next-to-leading logarithm (NLL) approximation for the Balitsky-Fadin-Kuraev-Lipatov (BKFL) evolution are presented for the Mueller-Navelet (MN) dijet production cross section, as well as for their ratios at different collision energies. The MN dijet denotes the jet pair consists of jets, which were selected with $p_{\perp} > p_{\perp\min}$ and with maximal rapidity separation in the event. The NLL BFKL predictions for the MN cross sections are given for the $pp$ collisions at $\sqrt{s}=2.76$, $8$, and $13$ TeV, for $p_{\perp\min} = 20$ and $35$ GeV. The results are in agreement with the measurement by the CMS experiment in $pp$ collisions at $\sqrt{s}=2.76$ TeV and $p_{\perp\min} = 35$ GeV within the theoretical and experimental uncertainties. The predictions of the NLL BFKL calculation of ratios of the MN cross sections at different collision energies and $p_{\perp\min}$ are also presented.

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Anatolii Iu. Egorov, Victor T. Kim. 2023-07-13. Next-to-leading BFKL evolution for dijets with large rapidity separation at different LHC energies. https://doi.org/10.1103/physrevd.108.014010

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