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| Titel: | Charge correlations using the balance function in Pb-Pb collisions at √sNN=2.76 TeV |
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| Mitwirkende: | Abelev, Betty [VerfasserIn]  |
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| | Angelov, Venelin [VerfasserIn] |
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| | Busch, Oliver [VerfasserIn] |
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| | Fasel, Markus [VerfasserIn] |
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| | Glässel, Peter [VerfasserIn] |
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| | Grajcarek, Robert [VerfasserIn] |
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| | Herrmann, Norbert [VerfasserIn] |
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| | Klein, Jochen [VerfasserIn] |
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| | Krawutschke, Tobias [VerfasserIn] |
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| | Kweon, MinJung [VerfasserIn] |
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| | Lohner, Daniel [VerfasserIn] |
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| | Lu, Xianguo [VerfasserIn] |
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| | Maire, Antonin [VerfasserIn] |
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| | Mercado Pérez, Jorge [VerfasserIn] |
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| | Oyama, Ken [VerfasserIn] |
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| | Pachmayer, Yvonne C. [VerfasserIn] |
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| | Reidt, Felix [VerfasserIn] |
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| | Reygers, Klaus [VerfasserIn] |
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| | Schicker, Rainer [VerfasserIn] |
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| | Stachel, Johanna [VerfasserIn] |
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| | Stiller, Johannes Hendrik [VerfasserIn] |
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| | Ulrich, Joachim [VerfasserIn] |
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| | Vallero, Sara [VerfasserIn] |
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| | Völkl, Martin [VerfasserIn] |
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| | Wang, Yifei [VerfasserIn] |
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| | Windelband, Bernd [VerfasserIn] |
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| | Winn, Michael [VerfasserIn] |
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| | Zimmermann, Alice [VerfasserIn] |
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| Körperschaft: | ALICE (Körperschaft) [VerfasserIn] |
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| Verf.angabe: | ALICE Collaboration |
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| E-Jahr: | 2013 |
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| Jahr: | 22 May 2013 |
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| Umfang: | 13 S. |
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| Fussnoten: | Im Titel steht "sNN" unter dem Wurzelsymbol ; Im Titel ist "NN" in sNN tiefgestellt ; The ALICE collaboration: B. Abelev, V. Angelov, O. Busch, M. Fasel, P. Glässel, R. Grajcarek, N. Herrmann, J. Klein, T. Krawutschke, M.J. Kweon, D. Lohner, X.-G. Lu, A. Maire, J. Mercado-Pérez, K. Oyama, Y. Pachmayer, F. Reidt, K. Reygers, R. Schicker, J. Stachel, J.H. Stiller, J. Ulrich, S. Vallero, M.A. Völkl, Y. Wang, B. Windelband, M. Winn, A. Zimmermann und weitere 950 ; Gesehen am 30.04.2021 |
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| Titel Quelle: | Enthalten in: Physics letters / B |
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| Ort Quelle: | Amsterdam : North-Holland Publ., 1967 |
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| Jahr Quelle: | 2013 |
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| Band/Heft Quelle: | 723(2013), 4/5, Seite 267-279 |
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| ISSN Quelle: | 1873-2445 |
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| Abstract: | In high-energy heavy-ion collisions, the correlations between the emitted particles can be used as a probe to gain insight into the charge creation mechanisms. In this Letter, we report the first results of such studies using the electric charge balance function in the relative pseudorapidity (Δη) and azimuthal angle (Δφ) in Pb-Pb collisions at sNN=2.76 TeV with the ALICE detector at the Large Hadron Collider. The width of the balance function decreases with growing centrality (i.e. for more central collisions) in both projections. This centrality dependence is not reproduced by HIJING, while AMPT, a model which incorporates strings and parton rescattering, exhibits qualitative agreement with the measured correlations in Δφ but fails to describe the correlations in Δη. A thermal blast-wave model incorporating local charge conservation and tuned to describe the pT spectra and v2 measurements reported by ALICE, is used to fit the centrality dependence of the width of the balance function and to extract the average separation of balancing charges at freeze-out. The comparison of our results with measurements at lower energies reveals an ordering with sNN: the balance functions become narrower with increasing energy for all centralities. This is consistent with the effect of larger radial flow at the LHC energies but also with the late stage creation scenario of balancing charges. However, the relative decrease of the balance function widths in Δη and Δφ with centrality from the highest SPS to the LHC energy exhibits only small differences. This observation cannot be interpreted solely within the framework where the majority of the charge is produced at a later stage in the evolution of the heavy-ion collision. |
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| DOI: | doi:10.1016/j.physletb.2013.05.039 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1016/j.physletb.2013.05.039 |
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| | Volltext: https://www.sciencedirect.com/science/article/pii/S0370269313004085 |
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| | DOI: https://doi.org/10.1016/j.physletb.2013.05.039 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | ALICE LHC |
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| | Balance function |
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| | Charge correlations |
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| K10plus-PPN: | 1756645744 |
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| Verknüpfungen: | → Zeitschrift |
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Charge correlations using the balance function in Pb-Pb collisions at √sNN=2.76 TeV / Abelev, Betty [VerfasserIn]; 22 May 2013 (Online-Ressource)
