Hadronic medium effects on Zcs -(3985 ) production in heavy ion collisions
Abstract
In this work we study the interactions of the multiquark state Zcs -(3985 ) with light mesons in a hot hadron gas. Using an effective Lagrangian framework, we estimate the vacuum cross sections as well as the thermal cross sections of the production processes D¯s (*)Ds(*)→Zcs -X (X =π ,K ,η ) and the corresponding inverse reactions. The results indicate that the considered processes have sizeable cross sections. Most importantly, the thermal cross sections for Zc s annihilation are much larger than those for production. This feature might produce relevant effects on some observables, such as the final Zc s multiplicity measured in heavy ion collisions.
- Publication:
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Physical Review D
- Pub Date:
- October 2022
- DOI:
- 10.1103/PhysRevD.106.076001
- arXiv:
- arXiv:2206.03399
- Bibcode:
- 2022PhRvD.106g6001A
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 8 pages