11–13 Sept 2024
Institute for Nuclear Physics -- Polish Academy of Sciences (IFJ PAN)
Europe/Warsaw timezone

GTMD approach in the production of diffractive dijet in DIS

13 Sept 2024, 14:10
20m
Aula (Institute for Nuclear Physics -- Polish Academy of Sciences (IFJ PAN))

Aula

Institute for Nuclear Physics -- Polish Academy of Sciences (IFJ PAN)

Institute of Nuclear Physics -- Polish Academy of Sciences (IFJ PAN) ul. Radzikowskiego 152, 31-342 Kraków
Talk Particle Physics [Early Career] ECR

Speaker

Barbara Linek (University of Rzeszow)

Description

We calculate differential distributions for diffractive dijets production in $ep→e'p$ jet jet using off-diagonal unintegrated gluon distributions (GTMDs). Different models are used.
We concentrate on the contribution of exclusive $q\bar{q}$ dijets.
The results of our calculations are compared to H1 and ZEUS data. In general, except for one GTMD, our results are below the HERA data. This is in contrast to recent results where the normalization was adjusted to some selected distributions and no agreement with other observables was checked. We conclude that the calculated cross sections are only a small part of the measured ones which contain probably also processes with pomeron remnant.
We present also azimuthal correlations between the sum and the difference of dijet transverse momenta. The cuts on transverse momenta of jets generate azimuthal correlations which can be misinterpreted.

Primary author

Barbara Linek (University of Rzeszow)

Co-authors

Prof. Antoni Szczurek (Insytut Fizyki Jądrowej im. Henryka Niewodniczańskiego Polskiej Akademii Nauk) Marta Łuszczak (Instytut Nauk FIzycznych, Kolegium Nauk Przyrodniczych, Uniwersytet Rzeszowski) Wolfgang Schäfer (Insytut Fizyki Jądrowej im. Henryka Niewodniczańskiego Polskiej Akademii Nauk)

Presentation materials