Eur. Phys. J. C (2018) 78: 1023
https://doi.org/10.1140/epjc/s10052-018-6493-6

Regular Article - Theoretical Physics

Unintegrated gluon distribution from forward polarized -electroproduction

¹ Dipartimento di Fisica dell’Università della Calabria, 87036, Arcavacata di Rende, Cosenza, Italy
² INFN-Gruppo collegato di Cosenza, 87036, Arcavacata di Rende, Cosenza, Italy
³ Instituto de Física Teórica UAM/CSIC and Universidad Autónoma de Madrid, Nicolás Cabrera 15, 28049, Madrid, Spain
⁴ Sobolev Institute of Mathematics, 630090, Novosibirsk, Russia
⁵ Novosibirsk State University, 630090, Novosibirsk, Russia

^* e-mail: francescogiovanni.celiberto@unipv.it

Received: 6 September 2018
Accepted: 2 December 2018
Published online: 18 December 2018

Abstract

We present here some arguments to support our suggestion that data on the helicity structure for the hard exclusive electroproduction of mesons at HERA (and in possible future high-energy electron-proton colliders) provide useful information to constrain the -shape of the unintegrated gluon distribution in the proton.