Bochum, 18.03.09 Formation of hypernuclei in reactions Formation of hypernuclei in reactions induced induced by heavy-ion and hadron beams by heavy-ion and hadron beams T. Gaitanos, H. Lenske, U. Mosel T. Gaitanos, H. Lenske, U. Mosel Introduction Introduction Theoretical aspects Theoretical aspects Giessen-BUU (GiBUU) +SMM approach Applications-I: (X+X, p+X)@SIS Applications-I: (X+X, p+X)@SIS Benchmark tests (fragmentation) Applications-II: X+X@2AGeV (HypHI), p+X@50GeV (PANDA, J- PARC) Predictions on hypernuclear production cross sections Final remarks Final remarks
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Formation of hypernuclei in reactions induced by heavy-ion and hadron beams
Formation of hypernuclei in reactions induced by heavy-ion and hadron beams. T. Gaitanos, H. Lenske, U. Mosel. Introduction Theoretical aspects Giessen-BUU (GiBUU) +SMM approach Applications-I: (X+X, p+X)@SIS Benchmark tests (fragmentation) - PowerPoint PPT Presentation
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Bochum, 18.03.09
Formation of hypernuclei in reactions induced Formation of hypernuclei in reactions induced
by heavy-ion and hadron beams by heavy-ion and hadron beams
T. Gaitanos, H. Lenske, U. MoselT. Gaitanos, H. Lenske, U. Mosel
data: S. Leray et al., PRC65,044621 data: S. Leray et al., PRC65,044621
neutronsneutrons
Application-I: Fragmentation in [email protected] GeV Application-I: Fragmentation in [email protected] GeV (energy (energy spectra…)spectra…)Application-I: Fragmentation in [email protected] GeV Application-I: Fragmentation in [email protected] GeV (energy (energy spectra…)spectra…)
Prog. Part. Nucl. Phys. (2009), in pressProg. Part. Nucl. Phys. (2009), in press (arXiv:0811.3506)(arXiv:0811.3506)
Bochum, 18.03.09
Applications-II: Fragmentation in X+X reactionsApplications-II: Fragmentation in X+X reactionsApplications-II: Fragmentation in X+X reactionsApplications-II: Fragmentation in X+X reactions
absolute yieldsabsolute yields from spectator fragmentation
Most of hyperons created & rescatter inside moving source
Two sources (residual target+moving source)
Most of hyperons created & rescatter inside moving source
Prog. Part. Nucl. Phys. (2009), in press (arXiv:0811.3506), Phys. Lett. B (2008), Prog. Part. Nucl. Phys. (2009), in press (arXiv:0811.3506), Phys. Lett. B (2008), submittedsubmitted
Bochum, 18.03.09
Conclusions…Conclusions…
Theoretical activities: “FAIR” @ GiessenTheoretical activities: “FAIR” @ Giessen GiBUU+SMM: NE-dynamics + statistical process of fragmentationGiBUU+SMM: NE-dynamics + statistical process of fragmentation
GiBUU+SMM+GiBUU+SMM+: model extension to hypernuclei (coalescence): model extension to hypernuclei (coalescence)
Theoretical predictions (low energy)Theoretical predictions (low energy) proper description of fragmentation process in spallation reactions proper description of fragmentation process in spallation reactions
and in heavy-ion collisions and in heavy-ion collisions
First theoretical predictions on hypernuclei (high First theoretical predictions on hypernuclei (high energy)energy) ~ ~ b for b for H & H & HeHe in spectator fragmentation in heavy-ion collisions in spectator fragmentation in heavy-ion collisions
high energy high energy H & H & HeHe in proton-induced reactions in proton-induced reactions
Important for future experiments: FAIR @ GSIImportant for future experiments: FAIR @ GSI HypHI (T. Saito) HypHI (T. Saito) Li (C) +C@2AGeV starts soon… Li (C) +C@2AGeV starts soon…
PANDA PANDA exp. predictions on double strange hypernuclei exp. predictions on double strange hypernuclei
Bochum, 18.03.09
Backup slides
Backup slides
Bochum, 18.03.09
Prog. Part. Nucl. Phys. (2009), in Prog. Part. Nucl. Phys. (2009), in presspress
Phys. Lett. B (2008), submittedPhys. Lett. B (2008), submitted
New initialization: Binding energy & rms-radius in BUU…New initialization: Binding energy & rms-radius in BUU…New initialization: Binding energy & rms-radius in BUU…New initialization: Binding energy & rms-radius in BUU…
Old initialization
Old initialization
new initialization
new initialization
RTF-binding energy
Bochum, 18.03.09
Mean-field vs cascade – the role of the mean-field…Mean-field vs cascade – the role of the mean-field…
Ground state in BUU-II: Ground state in BUU-II: Results (application to proton-induced reactions)Results (application to proton-induced reactions)Ground state in BUU-II: Ground state in BUU-II: Results (application to proton-induced reactions)Results (application to proton-induced reactions)