English

On the resummation of non-global logarithms at finite $\mathbf{N_c}$

High Energy Physics - Phenomenology 2015-07-07 v1

Abstract

We present a calculation of non-global logs at finite Nc\mathrm{N_c} for the hemisphere mass distribution in e+e2e^+e^-\to 2 jets at single log accuracy up to fifth order in the strong coupling constant. Our results suggest a possible all-orders resummation of these large logs into an exponential. Comparing our results to those at large Nc\mathrm{N_c}, recently reported in literature, we find an agreement. We additionally compare our findings with the numerical all-orders resummation at large Nc\mathrm{N_c} and discuss the significance of neglected finite-Nc\mathrm{N_c} corrections on the said distribution.

Keywords

Cite

@article{arxiv.1507.01130,
  title  = {On the resummation of non-global logarithms at finite $\mathbf{N_c}$},
  author = {Yazid Delenda and Kamel Khelifa-Kerfa},
  journal= {arXiv preprint arXiv:1507.01130},
  year   = {2015}
}

Comments

To appear in the proceedings of the XXIII International Workshop on Deep-Inelastic Scattering and Related Subjects, April 27 - May 1, 2015, Dallas, Texas, USA