Anisotropic flow in fixed-Target 208Pb+20Ne collisions as a probe of quark-gluon plasma
The System for Measuring Overlap with Gas (SMOG2) at the LHCb detector enables the study of fixed-target ion-ion collisions at relativistic energies (√𝑠NN∼100 GeV in the center of mass). With input from ab initio calculations of the structure of 16O and 20Ne, we compute 3+1D hydrodynamic prediction...
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Article (Journal) |
| Lingua: | inglese |
| Pubblicazione: |
26 February 2025
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| In: |
Physical review letters
Year: 2025, Volume: 134, Fascicolo: 8, Pages: 1-10 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.134.082301 |
| Accesso online: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevLett.134.082301 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.134.082301 |
| Note sull'autore: | Giuliano Giacalone, Wenbin Zhao, Benjamin Bally, Shihang Shen, Thomas Duguet, Jean-Paul Ebran, Serdar Elhatisari, Mikael Frosini, Timo A. Lähde, Dean Lee, Bing-Nan Lu, Yuan-Zhuo Ma, Ulf-G. Meißner, Govert Nijs, Jacquelyn Noronha-Hostler, Christopher Plumberg, Tomás R. Rodríguez, Robert Roth, Wilke van der Schee, Björn Schenke, Chun Shen, and Vittorio Somà |
| Riassunto: | The System for Measuring Overlap with Gas (SMOG2) at the LHCb detector enables the study of fixed-target ion-ion collisions at relativistic energies (√𝑠NN∼100 GeV in the center of mass). With input from ab initio calculations of the structure of 16O and 20Ne, we compute 3+1D hydrodynamic predictions for the anisotropic flow of Pb+Ne and Pb+O collisions to be tested with upcoming LHCb data. This will allow the detailed study of quark-gluon plasma formation as well as experimental tests of the predicted nuclear shapes. Elliptic flow (𝑣2) in Pb+Ne collisions is greatly enhanced compared to the Pb+O baseline due to the shape of 20Ne, which is deformed in a bowling-pin geometry. Owing to the large 208Pb radius, this effect is seen in a broad centrality range, a unique feature of this collision configuration. Larger elliptic flow further enhances the quadrangular flow (𝑣4) of Pb+Ne collisions via nonlinear coupling, and impacts the sign of the kurtosis of the elliptic flow vector distribution (𝑐2{4}). Exploiting the shape of 20Ne proves thus an ideal method to investigate the formation of quark-gluon plasma in fixed-target experiments at LHCb, and demonstrates the power of System for Measuring Overlap with Gas as a tool to image nuclear ground states. |
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| Descrizione del documento: | Im Titel sind die Zahlen 208 und 20 hochgestellt Veröffentlicht: 26. Februar 2025 Gesehen am 01.06.2026 |
| Descrizione fisica: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.134.082301 |