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Prompt hadroproduction of C-even quarkonia in the light-front $k_T$ -factorization approach

by Wolfgang Schäfer, Izabela Babiarz, Roman Pasechnik, Antoni Szczurek

This Submission thread is now published as SciPost Phys. Proc. 8, 032 (2022)

Submission summary

As Contributors: Wolfgang Schäfer
Preprint link: scipost_202204_00021v1
Date accepted: 2022-04-28
Date submitted: 2022-04-13 11:35
Submitted by: Schäfer, Wolfgang
Submitted to: SciPost Physics Proceedings
Proceedings issue: DIS2021
Academic field: Physics
Specialties:
  • High-Energy Physics - Phenomenology
Approach: Phenomenological

Abstract

We present a new approach for the prompt production of quarkonia which is based on the $k_T$-factorization method. The production of even C-parity quarkonia proceeds via the fusion of two (off-shell) gluons. Especially in the kinematics of the LHCb experiment these processes are thus expected to be a sensitive probe of the small-x gluon distribution. We calculate the relevant off-shell matrix elements in terms of the light-front wave functions of the quarkonium states. We present our results for scalar and pseudoscalar charmonia and discuss photon transition form factors as well as cross sections for prompt hadroproduction. We compare our results for the $\eta_c$ to recent LHCb data.

Published as SciPost Phys. Proc. 8, 032 (2022)



Submission & Refereeing History

Published as SciPost Phys. Proc. 8, 032 (2022)

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Submission scipost_202204_00021v1 on 13 April 2022

Reports on this Submission

Anonymous Report 1 on 2022-4-19 (Invited Report)

Report

Recommend for acceptance.

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