Two-Pion Intensity Interferometry in Au+Au @ 1.23A GeV

0553342 - ÚJF 2022 RIV NL eng J - Článek v odborném periodiku
Greifenhagen, R.
Two-Pion Intensity Interferometry in Au+Au @ 1.23A GeV.
Nuclear Physics. A. Roč. 1005, SI (2021), č. článku 121816. ISSN 0375-9474. E-ISSN 1873-1554.
[XXVIIIth International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2019). Wuhan, 04.11.2019-09.11.2019]
Výzkumná infrastruktura: FAIR-CZ II - 90112
Klíčová slova: HADES * FAIR * HBT
Obor OECD: Nuclear physics
Impakt faktor: 1.558, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.nuclphysa.2020.121816

High-statistics pi(-)pi(-) HBT data for non-central Au + Au collisions at 1.23A GeV, measured with HADES at SIS18/GSI, are presented. The three-dimensional emission source is studied in dependence on pair transverse momentum and centrality. A tilt of the source relative to the beam axis is observed. The spatial extension and the tilt magnitude of the source decrease with transverse momentum. The spatial extension decreases and the tilt magnitude increases going from central to peripheral collisions. The derived eccentricity perpendicular to the beam axis fits well to the initial nucleonic overlap region at high transverse momentum, while the eccentricities from lower pair transverse momentum pions are found to decrease as the pair momentum is reduced.
Trvalý link: http://hdl.handle.net/11104/0328298