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Associated quarkonia production in a single boson $e^{+}e^{−}$~annihilation

E. A. Leshchenko$^1$, I. N. Belov$^2$

Memoirs of the Faculty of Physics 2022. N 4.

  • Article
Annotation

We present the preliminary results on the study of the cross sections for charmonium pair and bottomonium pair production in a single boson $e^+e^-$~annihilation. Processes have been studied in a wide range of energies, which are to be achieved at future $e^+e^-$~colliders, such as ILC and FCC. The contribution of color singlets states to production of vector and pseudoscalar states have been taken into account. Both QCD and EW production mechanisms have been considered including their interference and one-loop QCD correction. Cases of both intermediate bosons have been investigated: $\gamma$ and $Z$. All the calculations were performed in terms of perturbative technique and NRQCD-factorization.

Received: 2022 May 27
Approved: 2022 June 23
PACS:
13.66.Bc Hadron production in e−e+ interactions
14.40.Pq Heavy quarkonia
Authors
E. A. Leshchenko$^1$, I. N. Belov$^2$
$^1$Department of Physics of atomic nucleus and quantum theory of collisions, Faculty of physics, Lomonosov Moscow State University, chair of Nuclear Physics and Quantum Theory of Collisions.\
$^2$Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moskow 119991, Russia.
Issue 4, 2022

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