Conveners
1; Mon-III
- Horst Lenske (Justus-Liebig-Universitaet Giessen)
The detection of double hypernucleus having two units of Strangeness has now reached 46 sample events. The only experiment that has continued to detect double-hypernuclei for the last 35 years is experiments using nuclear emulsion as a detector in Japan. During that period, significant progress has been made in experimental and analytical techniques. Under such technological developments, it...
One of the important research goal is to understand $\Xi N$ interaction. For this purpose, at J-PARC, they are planning to produce several bound $\Xi$ hypernuclei. In addition, it is requested to guide what kind of $\Xi$ hypernuclei would be produce as bound state. Considering this situation, I report $\Xi$ hypernuclei with $A=4$ to 10 , that is, $NNN\Xi$, $\alpha \Xi N$, $\alpha\Xi NN$, and...
Recent experimental results for the cascade hypernucleus $^{15}_{\hskip0.27em\Xi}$C ($^{14}$N$+\Xi^-$) are analyzed together with data for $^{12}_{\hskip0.27em\Xi}$Be and $^{13}_{\hskip0.27em\Xi}$B within a Skyrme-Hartree-Fock theoretical approach. Optimal Skyrme parameters are determined for a consistent description of the KISO, IBUKI, KINKA, BNL-E885, BNL-E906, KEK-E224, and KEK-E176 data...
Five $\Xi^- p\to \Lambda\Lambda$ two-body capture events in $^{12}$C and $^{14}$N emulsion nuclei, in which a pair of single-$\Lambda$ hypernuclei is formed and identified by their weak decay, have been observed in $(K^-,K^+)$ emulsion exposures at KEK and J-PARC. Applying a $\Xi^-$-nucleus optical potential methodology to study atomic and nuclear transitions, we confirm that these capture...
X-ray spectroscopy of hadronic atoms give us various information on the strong interaction between hadrons and nuclei. At J-PARC, we are aiming for the world-first detection of the X rays from atoms with a doubly strange hyperon, $\Xi^-$. Recently, two experiments, J-PARC E07 and J-PARC E03, have been performed for the detection of X rays from $\Xi$ atoms. Overview and status of these...
We study the energy spectra of $\Xi$ hypernuclei $^{15}_\Xi$C and $^{12}_{\Xi}$Be with a relativistic mean field (RMF) model. The RMF parameters are optimized to reproduce the average energy of KINKA and IRRAWADDY events for the ground state and also the average energy of KISO and IBUKI events for the excited state in $^{15}_\Xi$C. The depth of the $\Xi-N$ mean field potential is found to be...
