Скачать или смотреть Vladimir Saleev, Challenges and problems in charmonium production at the SPD NICA

XXXV International Workshop on High Energy Physics "From Quarks to Galaxies: Elucidating Dark Sides",
November 28 - December 1, 2023

https://indico.ihep.su/event/hepftXXXV

Morning session November 30, 2023

Vladimir Saleev=
Challenges and problems in charmonium production at the SPD NICA

The SPD NICA is planned to operate as a universal facility for comprehensive study of the unpolarized and polarized gluon content of the nucleon at large Bjorken-x, using different hard probes. The first one is charmonium production processes. The experiment aims to provide access to the gluon helicity, gluon Sivers and Boer-Mulders PDFs in the nucleon. In this talk, we present an overview of theoretical predictions for J/ψ, χc, ηc and J/ψ + γ production in uppolarized and polarized pp-collisions at the √s = 27 GeV. We use collinear parton model and generalized parton model as well as two models of c¯c hadronization into the final charmonium, Nonrelativistic QCD and Improved Color Evaporation model.

Information on the subject:

A. Arbuzov, A. Bacchetta, M. Butenschoen, F. G. Celiberto, U. D’Alesio, M. Deka, I. Denisenko, M. G. Echevarria, A. Efremov and N. Y. Ivanov, et al. it On the physics potential to study the gluon content of proton and deuteron at NICA SPD, Prog. Part. Nucl. Phys. 119 (2021), 103858
B. A. Karpishkov, M. Nefedov and V. Saleev, Estimates for the singlespin asymmetries in the pp↑ → J/ψX process at PHENIX RHIC and SPD NICA, Phys. Rev. D 104 (2021) no.1, 016008
A. Guskov, A. Datta, A. Karpishkov, I. Denisenko and V. Saleev, Probing Gluons at the Spin Physics Detector, Physics 2023, 5, 672-687.
A. Karpishkov and V. Saleev, On Transverse Single-Spin Asymmetries in D-Meson Production at the SPD NICA Experiment, Phys. Part. Nucl. Lett. 20, no.3, 360-363 (2023)
Anufriev A.V., Saleev V.A. Production of ηc with two-photon decay in the GPM at the energies of NICA, Vestnik of Samara University. Natural Science Series, 2022, vol. 28, no. 1-2, pp. 128-136.
Alimov L.E., Saleev V.A. Associative production of J/ψ-mesons and direct photons at the energy of the NICA collider, Vestnik of Samara University. Natural Science Series, 2023, vol. 29, no. 2, pp. 48-61.