Resummation, Evolution, Factorization 2022

Session

Parallel Session B: TMD theory: quarkonium

TMD theory: quarkonium (p1)

2 Nov 2022, 15:50

Conveners

Parallel Session B: TMD theory: quarkonium

• Laurent Favart (Université Libre de Bruxelles)

21. Pseudoscalar quarkonium hadroproduction in TMD factorization

Francesco Giovanni Celiberto (ECT*/FBK Trento & INFN-TIFPA)

02/11/2022, 15:50

We present the discovery potential of pseudoscalar quarkonium production in hadronic collisions to access gluon TMD PDFs. In particular, we explore the phenomenology of the unpolarized and linearly polarized gluon TMD PDF in unpolarized collisions for different kinematic settings, and the potential of a fixed-target experiment at the LHC to access T-odd distributions such as the gluon Sivers TMD PDF.

22. Single and double J/psi production in ICEM via the Parton Reggeization Approach

Vladimir Saleev (None)

02/11/2022, 16:10

We study the prompt single and double $J/\psi$ hadroproduction in the Improved Color
Evaporation Model using the Parton Reggeization Approach. We make calculations in a single manner to described the experimental data for prompt $J/\psi$ transverse momentum spectra from the energy of $\sqrt{s}=19$ GeV up to modern energy of the LHC, $\sqrt{s}=13$ TeV. The numerical calculations are doing...

29. Resolving negative NLO cross sections problem in quarkonium production via matching with High-Eenrgy Factorization

Maxim Nefedov (NCBJ, Warsaw)

02/11/2022, 16:30

We continue the investigation of the problem of negative NLO cross sections of heavy quarkonium production at high collision energies, started in [1]. The problem arises due to unphysical behaviour of the high partonic energy asymptotics of NLO partonic coefficient function in collinear factorisation, which can be cured via matching of the NLO calculation with Leading-Logarithmic resummation...