0588119 - FZÚ 2025 RIV NL eng J - Článek v odborném periodiku
Pasechnik, Roman - Taševský, Marek
Multi-dimensional hadron structure through the lens of gluon Wigner distribution.
Physics Reports-Review Section of Physics Letters. Roč. 1084, Sept (2024), s. 3-57. ISSN 0370-1573. E-ISSN 1873-6270
Grant CEP: GA MŠMT(CZ) EF18_053/0016627; GA MŠMT(CZ) LTT17018
Institucionální podpora: RVO:68378271
Klíčová slova: hadron structure * gluon Wigner function * (semi)exclusive process * two-particle correlations * elliptic flow
Obor OECD: Particles and field physics
Impakt faktor: 23.9, rok: 2023 ; AIS: 8.614, rok: 2023
Způsob publikování: Open access
DOI: https://doi.org/10.1016/j.physrep.2024.06.004

IWe review the current status of phenomenological research on constraining the multi-dimensional proton (and nucleus) structure at high energies through studies of the gluon Wigner distributions. We provide a brief pedagogical introduction into the corresponding theoretical definitions and modelling of exclusive and diffractive scattering observables in terms of the Wigner distribution. Also, we present an outlook into the existing and planned measurements that attempt to constrain the Wigner distribution. We overview possible interconnections between various manifestations of the gluon Wigner distribution emerging, for instance, in azimuthal-angle correlations in (semi)exclusive reactions and elliptic flow measurements in inclusive processes. We also summarise the current knowledge on the most important processes potentially enabling one to constrain the elliptic gluon density in the proton and to separate it from the genuine effect of hydrodynamic evolution in the flow measurements.
Trvalý link: https://hdl.handle.net/11104/0355147