Anomalous kaon correlations measured in Pb-Pb collisions at the LHC as evidence for the melting and refreezing of the QCD vacuum

Joseph Kapusta; Scott Pratt; Mayank Singh

doi:10.1051/epjconf/202429612010

Anomalous kaon correlations measured in Pb-Pb collisions at the LHC as evidence for the melting and refreezing of the QCD vacuum

Joseph Kapusta, Scott Pratt, Mayank Singh

Physics and Astronomy (Twin Cities)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Measurements of the dynamical correlations between neutral and charged kaons in central Pb-Pb collisions at √s_NN = 2.76 TeV by the ALICE Collaboration display anomalous behavior relative to conventional heavy-ion collision simulators. We consider other conventional statistical models, none of which can reproduce the magnitude and centrality dependence of the correlations. The data can be reproduced by coherent emission from domains which grow in number and volume with increasing centrality. We study the dynamical evolution of the strange quark condensate and show that the energy released during the expansion and cooling of the system may be sufficient to explain the anomaly.

Original language	English (US)
Title of host publication	30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023
Editors	Rene Bellwied, Frank Geurts, Ralf Rapp, Claudia Ratti, Anthony Timmins, Ivan Vitev
Publisher	EDP Sciences
ISBN (Electronic)	9782759891269
DOIs	https://doi.org/10.1051/epjconf/202429612010
State	Published - Jun 26 2024
Event	30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023 - Houston, United States Duration: Sep 3 2023 → Sep 9 2023

Publication series

Name	EPJ Web of Conferences
Volume	296
ISSN (Print)	2101-6275
ISSN (Electronic)	2100-014X

Conference

Conference	30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023
Country/Territory	United States
City	Houston
Period	9/3/23 → 9/9/23

Bibliographical note

Publisher Copyright:
© The Authors, published by EDP Sciences.

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10.1051/epjconf/202429612010

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Kapusta, J., Pratt, S., & Singh, M. (2024). Anomalous kaon correlations measured in Pb-Pb collisions at the LHC as evidence for the melting and refreezing of the QCD vacuum. In R. Bellwied, F. Geurts, R. Rapp, C. Ratti, A. Timmins, & I. Vitev (Eds.), 30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023 Article 12010 (EPJ Web of Conferences; Vol. 296). EDP Sciences. https://doi.org/10.1051/epjconf/202429612010

Anomalous kaon correlations measured in Pb-Pb collisions at the LHC as evidence for the melting and refreezing of the QCD vacuum. / Kapusta, Joseph; Pratt, Scott; Singh, Mayank.
30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023. ed. / Rene Bellwied; Frank Geurts; Ralf Rapp; Claudia Ratti; Anthony Timmins; Ivan Vitev. EDP Sciences, 2024. 12010 (EPJ Web of Conferences; Vol. 296).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kapusta, J, Pratt, S & Singh, M 2024, Anomalous kaon correlations measured in Pb-Pb collisions at the LHC as evidence for the melting and refreezing of the QCD vacuum. in R Bellwied, F Geurts, R Rapp, C Ratti, A Timmins & I Vitev (eds), 30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023., 12010, EPJ Web of Conferences, vol. 296, EDP Sciences, 30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023, Houston, United States, 9/3/23. https://doi.org/10.1051/epjconf/202429612010

Kapusta J, Pratt S, Singh M. Anomalous kaon correlations measured in Pb-Pb collisions at the LHC as evidence for the melting and refreezing of the QCD vacuum. In Bellwied R, Geurts F, Rapp R, Ratti C, Timmins A, Vitev I, editors, 30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023. EDP Sciences. 2024. 12010. (EPJ Web of Conferences). doi: 10.1051/epjconf/202429612010

Kapusta, Joseph ; Pratt, Scott ; Singh, Mayank. / Anomalous kaon correlations measured in Pb-Pb collisions at the LHC as evidence for the melting and refreezing of the QCD vacuum. 30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023. editor / Rene Bellwied ; Frank Geurts ; Ralf Rapp ; Claudia Ratti ; Anthony Timmins ; Ivan Vitev. EDP Sciences, 2024. (EPJ Web of Conferences).

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abstract = "Measurements of the dynamical correlations between neutral and charged kaons in central Pb-Pb collisions at √sNN = 2.76 TeV by the ALICE Collaboration display anomalous behavior relative to conventional heavy-ion collision simulators. We consider other conventional statistical models, none of which can reproduce the magnitude and centrality dependence of the correlations. The data can be reproduced by coherent emission from domains which grow in number and volume with increasing centrality. We study the dynamical evolution of the strange quark condensate and show that the energy released during the expansion and cooling of the system may be sufficient to explain the anomaly.",

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Anomalous kaon correlations measured in Pb-Pb collisions at the LHC as evidence for the melting and refreezing of the QCD vacuum

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