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  • Letter
  • Open Access

Regeneration of bottomonia in an open quantum systems approach

Nora Brambilla1,2,3, Miguel Ángel Escobedo4,5, Ajaharul Islam6, Michael Strickland6, Anurag Tiwari6, Antonio Vairo1, and Peter Vander Griend7,8

  • 1Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
  • 2Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2 a, 85748 Garching, Germany
  • 3Munich Data Science Institute, Technische Universität München, Walther-von-Dyck-Strasse 10, 85748 Garching, Germany
  • 4Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, E-15782 Galicia, Spain
  • 5Departament de Física Quàntica i Astrofísica and Institut de Ciències del Cosmos, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
  • 6Department of Physics, Kent State University, Kent, Ohio 44242, USA
  • 7Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
  • 8Theoretical Physics Department, Fermilab, P.O. Box 500, Batavia, Illinois 60510, USA

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Phys. Rev. D 108, L011502 – Published 26 July, 2023

DOI: https://doi.org/10.1103/PhysRevD.108.L011502

Abstract

We demonstrate the importance of quantum jumps in the nonequilibrium evolution of bottomonium states in the quark-gluon plasma. Based on nonrelativistic effective field theory and the open quantum system framework, we evolve the density matrix of color singlet and octet pairs. We show that quantum regeneration of singlet states from octet configurations is necessary to understand experimental results for the suppression of both bottomonium ground and excited states. The values of the heavy-quarkonium transport coefficients used are consistent with recent lattice QCD determinations.

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Outline

Information

Phys. Rev. D 108, L011502– Published 26 July, 2023
  • Received 1 March 2023
  • Accepted 12 July 2023
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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