Proton structure functions in the dipole picture at next-to-leading order

Autor:	Hänninen, Henri, Mäntysaari, Heikki, Paatelainen, Risto, Penttala, Jani
Rok vydání:	2023
Předmět:	High Energy Physics - Phenomenology Nuclear Theory
Druh dokumentu:	Working Paper
Popis:	We predict heavy quark production cross sections in Deep Inelastic Scattering at high energy by applying the CGC effective theory. We demonstrate that when the calculation is performed consistently at next-to-leading order accuracy with massive quarks it becomes possible, for the first time in the dipole picture with perturbatively calculated center-of-mass energy evolution, to simultaneously describe both light and heavy quark production data at small $x$. We furthermore show how the heavy quark cross section data provides additional strong constraints on the extracted non-perturbative initial condition for the small-$x$ evolution equations. Comment: 5 pages, 4 figures. Talk by H.M. at DIS2023
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2306.17707 Zobrazit plný text záznamu View this record from Arxiv