23-27 January 2017
Bormio, Italy
Europe/Berlin timezone

Nuclear medium modifications of properties of kaons measured around threshold with FOPI

24 Jan 2017, 18:40
20m
Bormio, Italy

Bormio, Italy

Short Contribution Tuesday Afternoon

Speaker

Dr Krzysztof Piasecki (University of Warsaw - Faculty of Physics)

Description

Modifications of basic properties of kaons, like mass and decay constants, in hot and dense nuclear medium, often parameterized by the in-medium potentials, are an intensely studied topic in the last two decades. However, until recently the experimental samples obtained from the heavy-ion collisions at 1-2A GeV, used to draw conclusions on the scale of these potentials were limited to narrow windows of the momentum space [1-4]. An installation of the new RPC-based ToF detector within the FOPI setup at GSI allowed for a considerable enhancement of the acceptance range of charged kaons. Recent measurement of the directed and elliptic flow of charged kaons [5], has been followed by the extraction of the K-/K+ ratio across phase space, and was supplemented by the determination of contribution of Phi meson decays to the K- meson yield at freeze-out. This new experimental data set may help to sharpen information on the scale of in-medium modifications of properties of charged kaons via comparisons to the predictions of the transport models. __________ [1] K.Wiśniewski et al., Eur. Phys. J. A 9, 515 (2000). [2] F.Laue et al., Eur. Phys. J. A 9, 397 (2000). [3] W.Scheinast et al., Phys. Rev. Lett. 96, 072301 (2006). [4] P.Gasik et al., Eur. Phys. J. A 52, 177 (2016). [5] V.Zinyuk et al., Phys. Rev. C 90, 025210 (2014).

Primary author

Dr Krzysztof Piasecki (University of Warsaw - Faculty of Physics)

Presentation Materials