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Identical pion intensity interferometry at √sNN=2.4 GeV : HADES collaboration

Adamczewski-Musch, J. ; Arnold, O. ; Behnke, C. ; Belounnas, A. ; Belyaev, A. ; Berger-Chen, J. C. ; Biernat, J. ; Blanco, A. ; Blume, C. ; Böhmer, M. ; Bordalo, P. ; Chernenko, S. ; Chlad, L. ; Deveaux, C. ; Dreyer, J. ; Dybczak, A. ; Epple, E. ; Fabbietti, L. ; Fateev, O. ; Filip, P. ; Fonte, P. ; Franco, C. ; Friese, J. ; Fröhlich, I. ; Galatyuk, T. ; Garzón, J. A. ; Gernhäuser, R. ; Golubeva, M. ; Greifenhagen, R. ; Guber, F. ; Gumberidze, M. ; Harabasz, S. ; Heinz, T. ; Hennino, T. ; Hlavac, S. ; Höhne, C. ; Holzmann, R. ; Ierusalimov, A. ; Ivashkin, A. ; Kämpfer, B. ; Karavicheva, T. ; Kardan, B. ; Koenig, I. ; Koenig, W. ; Kolb, B. W. ; Korcyl, G. ; Kornakov, G. ; Kornas, F. ; Kotte, R. ; Kugler, A. ; Kunz, T. ; Kurepin, A. ; Kurilkin, A. ; Kurilkin, P. ; Ladygin, V. ; Lalik, R. ; Lapidus, K. ; Lebedev, A. ; Lopes, L. ; Lorenz, M. ; Mahmoud, T. ; Maier, L. ; Mangiarotti, A. ; Markert, J. ; Matulewicz, T. ; Maurus, S. ; Metag, V. ; Michel, J. ; Mihaylov, D. M. ; Morozov, S. ; Müntz, C. ; Münzer, R. ; Naumann, L. ; Nowakowski, K. ; Palka, M. ; Parpottas, Y. ; Pechenov, V. ; Pechenova, O. ; Petukhov, O. ; Piasecki, K. ; Pietraszko, J. ; Przygoda, W. ; Ramos, S. ; Ramstein, B. ; Reshetin, A. ; Rodriguez-Ramos, P. ; Rosier, P. ; Rost, A. ; Sadovsky, A. ; Salabura, P. ; Scheib, T. ; Schuldes, H. ; Schwab, E. ; Scozzi, F. ; Seck, F. ; Sellheim, P. ; Selyuzhenkov, I. ; Siebenson, J. ; Silva, L. ; Sobolev, Yu. G. ; Spataro, S. ; Spies, S. ; Ströbele, H. ; Stroth, J. ; Strzempek, P. ; Sturm, C. ; Svoboda, O. ; Szala, M. ; Tlusty, P. ; Traxler, M. ; Tsertos, H. ; Usenko, E. ; Wagner, V. ; Wendisch, C. ; Wiebusch, M. G. ; Wirth, J. ; Wójcik, D. ; Zanevsky, Y. ; Zumbruch, P. (2024)
Identical pion intensity interferometry at √sNN=2.4 GeV : HADES collaboration.
In: The European Physical Journal A : Hadrons and Nuclei, 2020, 56 (5)
doi: 10.26083/tuprints-00024033
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Identical pion intensity interferometry at √sNN=2.4 GeV : HADES collaboration
Language: English
Date: 30 April 2024
Place of Publication: Darmstadt
Year of primary publication: May 2020
Place of primary publication: Berlin ; Heidelberg
Publisher: Springer
Journal or Publication Title: The European Physical Journal A : Hadrons and Nuclei
Volume of the journal: 56
Issue Number: 5
Collation: 20 Seiten
DOI: 10.26083/tuprints-00024033
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

High-statistics π⁻π⁻ and π⁺π⁺ femtoscopy data are presented for Au + Au collisions at √sNN = 2.4 GeV, measured with HADES at SIS18/GSI. The experimental correlation functions allow the determination of the space-time extent of the corresponding emission sources via a comparison to models. The emission source, parametrized as three-dimensional Gaussian distribution, is studied in dependence on pair transverse momentum, azimuthal emission angle with respect to the reaction plane, collision centrality and beam energy. For all centralities and transverse momenta, a geometrical distribution of ellipsoidal shape is found in the plane perpendicular to the beam direction with the larger extension perpendicular to the reaction plane. For large transverse momenta, the corresponding eccentricity approaches the initial eccentricity. The eccentricity is smallest for most central collisions, where the shape is almost circular. The magnitude of the tilt angle of the emission ellipsoid in the reaction plane decreases with increasing centrality and increasing transverse momentum. All source radii increase with centrality, largely exhibiting a linear rise with the cube root of the number of participants. A substantial charge-sign difference of the source radii is found, appearing most pronounced at low transverse momentum. The extracted source parameters are consistent with the extrapolation of their energy dependence down from higher energies.

Uncontrolled Keywords: Nuclear Physics, Heavy Ions, Hadrons, Particle and Nuclear Physics, Nuclear Fusion
Identification Number: Artikel-ID: 140
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-240332
Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 30 Apr 2024 09:04
Last Modified: 20 Aug 2024 10:34
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/24033
PPN: 520774973
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