Simulating jets and heavy quarks in the glasma using the colored particle-in-cell method
Avramescu, D., Băran, V., Greco, V., Ipp, A., Müller, D., & Ruggieri, M. (2023). Simulating jets and heavy quarks in the glasma using the colored particle-in-cell method. Physical Review D, 107, Article 114021. https://doi.org/10.1103/PhysRevD.107.114021
Julkaistu sarjassa
Physical Review DTekijät
Päivämäärä
2023Tekijänoikeudet
© Published by the American Physical Society. Funded by SCOAP3.
We explore the impact of strong classical color fields, which occur in the earliest stages of heavy-ion collisions and are known as the glasma, on the classical transport of hard probes, namely heavy quarks and jets. To achieve this, we simulate SU(3) color fields using classical real-time lattice gauge theory and couple them to an ensemble of test particles whose dynamics are described by Wong’s equations. We provide an overview of how classical color algebras are constructed and introduce a method to generate random classical SU(3) color charges. We extensively test our numerical particle solver in the limits of infinitely massive heavy quarks and ultrarelativistic lightlike jets and obtain excellent quantitative agreement with previous studies. Going towards realistic masses and initial momenta, we extract longitudinal and transverse momentum broadening for heavy quarks and jets. The resulting accumulated momenta and the anisotropy of these dynamical hard probes exhibit deviations from limiting scenarios, showing that the full dynamics have a significant effect.
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Julkaisija
American Physical Society (APS)ISSN Hae Julkaisufoorumista
2470-0010Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/184062045
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D. A. acknowledges funding from the Academy of Finland, Center of Excellence in Quark Matter Project No. 346324. V. G. acknowledges funding from UniCT under “Linea di intervento 2” (HQCDyn Grant). D. M. acknowledges funding from the Austrian Science Fund (FWF) Projects No. P 34455 and No. P 34764. All simulations were performed using the GPU nodes of the Center of Theoretical Physics, University of Bucharest. D. A., D. M. and M. R. acknowledge S. Mrówczyński and C. Manuel for discussions regarding classical color charges, and K. Boguslavksi, H. Mäntysaari, and T. Lappi for many insightful discussions regarding the early stages of heavy-ion collisions. M. R. acknowledges John Petrucci for inspiration. We are grateful to T. Lappi for reviewing the manuscript. ...Lisenssi
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