Exclusive emissions of rho-mesons and the unintegrated gluon distribution

Exclusive emissions of rho-mesons and the unintegrated gluon distribution Full article

Journal

SciPost Physics Proceedings
ISSN: 2666-4003

Output data

Year: 2022, Number: 8, Pages: 089.1-089.7 Pages count : 7 DOI: 10.21468/scipostphysproc.8.089

Authors

Bolognino Andrèe Dafne ^1,2 , Celiberto Francesco Giovanni ^3,4,5 , Ivanov Dmitri ⁶ , Papa Alessandro ^1,2

Affiliations

1	Dipartimento di Fisica, Università della Calabria, I-87036 Arcavacata di Rende, Cosenza, Italy
2	Istituto Nazionale di Fisica Nucleare, Gruppo collegato di Cosenza, I-87036 Arcavacata di Rende, Cosenza, Italy
3	European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*), I-38123 Villazzano, Trento, Italy
4	Fondazione Bruno Kessler (FBK), I-38123 Povo, Trento, Italy
5	INFN-TIFPA Trento Institute of Fundamental Physics and Applications I-38123 Povo, Trento, Italy
6	Sobolev Institute of Mathematics, 630090 Novosibirsk, Russia

Exclusive emissions of vector mesons in forward directions of rapidity offer us a faultless chance to probe the proton structure at small- x . A high-energy factorization formula is established within BFKL, given as the convolution of an impact factor depicting the forward-meson emission and of an unintegrated gluon distribution (UGD) driving the gluon evolution at small- x . As a nonperturbative quantity, the UGD is not well known and several models for it exist. We present recent progresses on the study of the exclusive forward ρ -meson leptoproduction at HERA and EIC energies, showing how osbervables sensitive to different polarization states of the ρ -particle act as discriminators for the existing UGD models.

Bolognino A.D. , Celiberto F.G. , Ivanov D. , Papa A.
Exclusive emissions of rho-mesons and the unintegrated gluon distribution
SciPost Physics Proceedings. 2022. N8. P.089.1-089.7. DOI: 10.21468/scipostphysproc.8.089 РИНЦ OpenAlex

Submitted:	Jul 28, 2021
Accepted:	Mar 9, 2022
Published print:	Jul 13, 2022
Published online:	Jul 13, 2022

Elibrary:	59472710
OpenAlex:	W3185194685

DB	Citing
OpenAlex	11
Elibrary	6