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| Title: | Measurements of Chemical Potentials in Pb-Pb Collisions at sNN =5.02 TeV |
| Authors: | Bailung, Yoshini Behera, Debadatta Goswami, Kangkan |
| Issue Date: | 2024 |
| Publisher: | American Physical Society |
| Citation: | Acharya, S., Adamová, D., Aglieri Rinella, G., Aglietta, L., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, S., Ahn, S. U., Ahuja, I., Akindinov, A., Al-Turany, M., Aleksandrov, D., Alessandro, B., Alfanda, H. M., Alfaro Molina, R., Ali, B., Alici, A., Alizadehvandchali, N., … (ALICE Collaboration). (2024). Measurements of Chemical Potentials in Pb-Pb Collisions at sNN =5.02 TeV. Physical Review Letters. Scopus. https://doi.org/10.1103/PhysRevLett.133.092301 |
| Abstract: | 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 baryon chemical potentials, μQ=-0.18±0.90 MeV and μB=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. © 2024 CERN. |
| URI: | https://doi.org/10.1103/PhysRevLett.133.092301 https://dspace.iiti.ac.in/handle/123456789/14672 |
| ISSN: | 0031-9007 |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Physics |
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