MESON2023

Session

Parallel session C4

YN2

23 Jun 2023, 16:45

Conference room (Auditorium Maximum)

Conveners

Parallel session C4: Hyperon-Nucleon Interactions 1

• Johann Zmeskal (Stefan Meyer Institute for Subatomic Physics)

183. Measurement of KbarN scattering below the KbarN mass threshold

Hiroyuki Noumi (Osaka University)

23/06/2023, 16:45

Invited parallel

We measured \pi\Sigma invariant mass spectra below and above the KbarN mass threshold in the K-d -> N\pi\Sigma in order to study the KbarN interaction and the Lambda(1405) resonance.　For this purpose, a negatively-charged kaon (K^-) beam of 1 GeV/c was irradiated on a deuterium target at the K1.8BR beam line in the J-PARC Hadron Experimental Facility. In the experiment, a nucleon (N: neutron...

136. Analysis of $\Xi(1620)$ resonance with chiral unitary approach

Takuma Nishibuchi (Tokyo Metropolitan University)

23/06/2023, 17:10

Parallel

While various theoretical studies have been performed for the excited $\Xi(1620)$ state, its nature was not well understood due to the lack of experimental data. Recently, new experimental results on $\Xi(1620)$ were reported.In 2019, Belle collaboration observed the invariant mass distribution of the $\pi\Xi$ system in the $\Xi_c\rightarrow\pi\pi\Xi$ decay [1].By fitting the invariant mass...

115. Kaonic Atoms at the DAΦNE collider beyond SIDDHARTA-2: future perspectives

Luca De Paolis (LNF-INFN)

23/06/2023, 17:30

Parallel

Kaonic atoms are exotic atoms formed when a negatively charged kaon (K$^{-}$), stopped in a target, is captured by the atomic system, replacing the electron in a highly excited level. The captured K$^{-}$ starts an electromagnetic cascade down to the more internal levels of the atom. Approaching the innermost levels of the exotic atom, the kaon-nucleons strong interaction produces an energy...

134. The FAIR Phase-0 Hyperon Program at HADES

Jana Rieger (Uppsala University)

23/06/2023, 17:50

Parallel

Hyperons are a unique probe to study the non-perturbative aspects of the strong interaction. At HADES they are produced in proton or pion induced reactions at a few GeV. The detector has recently been extended with a forward detector featuring straw tube trackers developed for the PANDA experiment and a time of flight detector, extending the acceptance for hyperon channels at forward angles....

163. Production and decays of hyperons in p+p reactions measured with HADES

Konrad Sumara (Jagiellonian University)

23/06/2023, 18:10

Parallel

Within the framework of the quark model, hyperon states are composed of "u" (up) and "d" (down) "s" (strange) quarks. However, there are also competing models describing excited hyperons as dynamically generated by meson- baryon interactions. Prominent examples are Λ(1520) [1] and Λ(1405) [2]. In order to discriminate between models, it is helpful to measure hadronic decays, e.g. Λ(1520) →...