A short review of some double-parton scattering processes

Abstract

A few examples of quickly developing field of double parton scattering are discussed. We present arguments that the production of two pairs of charm quark-antiquark is the golden reaction to study the double parton scattering effects. We discuss briefly also mechanism of single parton scattering and show that it gives much smaller contribution to the $c\bar{c}c\bar{c}$ final state. In this context we discuss also the contribution of perturbative parton-splitting mechanism which should also be added to the conventional DPS mechanism. The presence of the letter leads to collision energy and other kinematical variables dependence of so-called ${\sigma }_{eff}$. We briefly discuss production of four jets. We concentrate on estimation of the contribution of DPS for jets widely separated in rapidity. Finally we briefly mention about DPS effects in production of $W^{+}{W}^{-}$.

10 pages, 9 figures, invited talk at the Excited QCD 2015, Tatranska Lomnica, Slovakia, 8-14 March 2015. arXiv admin note: text overlap with arXiv:1504.06491, order of figures changed, references added

References in corpus (4)

• Azimuthal decorrelation of Mueller-Navelet jets at the Tevatron and the LHC
• Production of two charm quark-antiquark pairs in single-parton scattering within the $k_t$-factorization approach
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• Evaluations of Derivatives of Jacobi Theta Functions in the origin