https://doi.org/10.1051/epjconf/201818101010
Kaon and Phi Production in Pion-Nucleus Reactions at 1.7 GeV/c**
supported by the DFG cluster of excellence “Origin and Structure of the Universe” and SFB 1258
1
Technische Universität München, Fakultät für Physik, E62
2
Excellence Cluster Universe, Technische Universität München
** e-mail: joana.wirth@tum.de
Published online: 25 June 2018
Nuclear reactions, π−+A (A = C;W), at an incident beam momentum of 1:7 GeV/c were measured with the HADES setup at SIS18/GSI. Detailed investigations of the K+, K− and ϕ production off nuclei are connected to the study of hadron in-medium properties at nuclear saturation density. A contradictory role is played by the ϕ meson since the ϕN absorption cross-section is assumed to be small due to the OZI suppression which is in contrast to experimental observations. We present the analysis method to identify the ϕ meson exploiting the large K+K− branching ratio (≈ 50%). The correction for acceptance and effciency effects of the detector system will be discussed as well.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
