Towards an optimally sensitive temperature probe in heavy-ion collisions

The high-precision heavy quarkonium data from LHC Run 2 and the ongoing Run 3 provide a unique window into the properties of hot nuclear matter and the Quark-Gluon Plasma (QGP). To make full use of this data, it is crucial to go beyond traditional observables such as the nuclear modification factor...

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Detalles Bibliográficos
Autores: López Pardo, Víctor, Rothkopf, Alexander
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad de Santiago de Compostela (USC)
Repositorio:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
Idioma:inglés
OAI Identifier:oai:dnet:minerva_____::e54f8775a60153612177d7b8901db2bd
Acceso en línea:https://hdl.handle.net/10347/46971
Access Level:acceso abierto
Palabra clave:Quarkonium
Quark-gluon plasma
Hard probes
Temperature
Open quantum systems
Lindblad
Quantum metrology
Observables
Quantum brownian motion
Caldeira-Leggett
Descripción
Sumario:The high-precision heavy quarkonium data from LHC Run 2 and the ongoing Run 3 provide a unique window into the properties of hot nuclear matter and the Quark-Gluon Plasma (QGP). To make full use of this data, it is crucial to go beyond traditional observables such as the nuclear modification factor and elliptic flow 2, and instead develop new probes that are more directly sensitive to the characteristics of the medium. We adopt the open quantum systems perspective for in-medium quarkonium and take inspiration from cold atom metrology techniques to construct observables with optimal sensitivity to specific QGP parameters. Focusing on the bulk temperature, we develop such optimal observables based on the Caldeira-Leggett master equation as a simplified setup, with the goal of extending it to a full Quantum Brownian Motion Lindblad equation.