Measurements of chemical potentials in Pb-Pb collisions at √sNN = 5.02 TeV
This Letter presents the most precise measurement to date of the matter-antimatter imbalance at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair √𝑠NN=5.02 TeV. Using the Statistical Hadronization framework, it is possible to obtain the value of the electric charge and bary...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
26 August, 2024
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| In: |
Physical review letters
Year: 2024, Volume: 133, Issue: 9, Pages: 1-15 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.133.092301 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevLett.133.092301 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.133.092301 
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| Author Notes: | ALICE Collaboration |
MARC
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| 245 | 1 | 0 | |a Measurements of chemical potentials in Pb-Pb collisions at √sNN = 5.02 TeV |c ALICE Collaboration |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Measurements of chemical potentials in Pb-Pb collisions at square root sNN equal 5.02 TeV |
| 264 | 1 | |c 26 August, 2024 | |
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| 500 | |a Im Titel ist NN tiefgestellt | ||
| 500 | |a Gesehen am 05.05.2025 | ||
| 500 | |a ALICE Collaboration: S. Acharya, V. Anguelov, A. Berdnikova, L. Bergmann, A.G. Bórquez Carcamo, M.C. Danisch, V.J.G. Feuillard, I. Fokin, P. Glässel, A. Nath, Y. Pachmayer, K. Reygers, R. Schicker, F. Schlepper, J.J. Seo, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, C.A. van Veen, B. Windelband, A. Yüncü, F. Zanone, [und 1036 weitere] | ||
| 520 | |a This Letter presents the most precise measurement to date of the matter-antimatter imbalance at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair √NN=5.02 TeV. Using the Statistical Hadronization framework, it is possible to obtain the value of the electric charge and baryon chemical potentials, =−0.18±0.90 MeV and =0.71±0.45 MeV, with unprecedented precision. A centrality-differential study of the antiparticle-to-particle yield ratios of charged pions, protons, Ω baryons, and light (hyper)nuclei is performed. These results indicate that the system created in Pb-Pb collisions at the LHC is on average baryon-free and electrically neutral at midrapidity. | ||
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