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Öğe Formation of hypernuclei in evaporation and fission processes(AMER PHYSICAL SOC, 2016) Botvina, A. S.; Buyukcizmeci, N.; Ergun, A.; Ogul, R.; Bleicher, M.; Pochodzalla, J.There are excellent opportunities to produce excited heavy hyperresidues in relativistic hadron and peripheral heavy-ion collisions. We investigate the disintegration of such residues into hypernuclei via evaporation of baryons and light clusters and their fission. Previously these processes were well known for normal nuclei as the decay channels at low excitation energies. We have generalized these models for the case of hypermatter. In this way we make extension of nuclear reaction studies at low temperature into the strange sector. We demonstrate how the new decay channels can be integrated in the whole disintegration process. Their importance for mass and isotope distributions of produced hyperfragments is emphasized. New and exotic isotopes obtained within these processes may provide a unique opportunity for investigating hyperon interaction in nuclear matter.Öğe Mechanisms for the production of hypernuclei beyond the neutron and proton drip lines(AMER PHYSICAL SOC, 2013) Buyukcizmeci, N.; Botvina, A. S.; Pochodzalla, J.; Bleicher, M.We analyze hypernuclei coming from fragmentation and multifragmentation of spectator residues obtained in relativistic ion collisions. These hypernuclei have a broad distribution in masses and isospin. They reach beyond the neutron and proton drip lines, and they are expected to be stable with respect to neutron and proton emission. This gives us the opportunity to investigate the properties of exotic hypernuclei, as well as the properties of normal nuclei beyond the drip lines, which can be produced after weak decay of such hypernuclei.Öğe Production of ?-hypernuclei and evaluation of their binding energies via the double yield ratio(SPRINGER, 2019) Buyukcizmeci, N.; Botvina, A. S.; Ogul, R.; Ergun, A.; Bleicher, M.Relativistic collisions of ions, hadrons and leptons with nuclei can produce various hypernuclei by the capture of hyperons in nuclear residues. In many cases the disintegration of such hypernuclear systems can be described with statistical approaches suggesting that the fragment production is related to the binding energies of hypernuclei. We demonstrate how the hyperon binding energies can be effectively evaluated from the yields of different hyper-isotopes using the double ratio method. Its universality and the possibility to involve many different isotopes are the advantages of this method. The same procedure can also be applied for multi-strange nuclei, for which binding energies were very difficult to measure in previous hypernuclear experiments. Modifications caused by secondary de-excitation processes in hot hypernuclei are considered additionally.Öğe Statistical production and binding energy of hypernuclei(AMER PHYSICAL SOC, 2018) Buyukcizmeci, N.; Botvina, A. S.; Ergun, A.; Ogul, R.; Bleicher, M.High-energy nuclear reactions enable us to produce a large variety of hypernuclei through the capture of hyperons by nuclear residues. We explore the statistical disintegration of such hypernuclear systems and the connection of fragment production to the binding energies of hyperons. It has been demonstrated that the hyperon binding energies can be effectively evaluated from the yields of different isotopes of hypernuclei by using the double ratio method. The advantages of this procedure are its universality and the possibility to involve many different isotopes. This method can also be applied for multistrange nuclei, for which binding energies were very difficult to measure in previous hypernuclear experiments. Corrections caused by secondary deexcitation processes are also discussed.
