scholarly journals Production of excited double hypernuclei via Fermi breakup of excited strange systems

2011 ◽  
Vol 697 (3) ◽  
pp. 222-228 ◽  
Author(s):  
Alicia Sanchez Lorente ◽  
Alexander S. Botvina ◽  
Josef Pochodzalla
Keyword(s):  
Double Hypernuclei

SYSTEMATIC STUDY OF DOUBLE STRANGENESS SYSTEM BY EMULSION-COUNTER HYBRID METHOD

2003 ◽  
Vol 18 (02n06) ◽  
pp. 116-119 ◽  
Author(s):  
◽  
KAZUMA NAKAZAWA
Keyword(s):  
Systematic Study ◽  
Hybrid Method ◽  
Nuclear Potential ◽  
Emulsion Method ◽  
X Ray ◽  
Double Hypernuclei ◽  
Dibaryon Resonance ◽  
H Dibaryon ◽  
Systematic Understanding

It was successfully decided that the ΛΛ interaction was weakly attractive, by the E373 (KEK-PS) experiment with hybrid-emulsion method, recently. To get systematic understanding for double strangeness system, the experiment E964 has been approved at BNL-AGS. The experiment should provide us one hundred samples of light and heavy double-hypernuclei and information for the existence of the H dibaryon resonance. We will also get the first data of X-ray from Ξ--atom which shall give us information of Ξ--nuclear potential.

scholarly journals Statistical double Λ hypernuclear formation from Ξ− absorption at rest in light nuclei

2020 ◽  
Vol 2020 (6) ◽  
Author(s):  
Akira Ohnishi ◽  
Chikako Ishizuka ◽  
Kohsuke Tsubakihara ◽  
Yuichi Hirata
Keyword(s):  
Energy Dependence ◽  
Bond Energy ◽  
Bound State ◽  
Light Nuclei ◽  
Double Hypernuclei ◽  
Statistical Decay ◽  
Formation Probability

Abstract We investigate double $\Lambda$ hyperfragment formation from the statistical decay of double $\Lambda$ compound nuclei produced in the $\Xi^-$ absorption at rest in the light nuclei $^{12}\mathrm{C}$, $^{14}\mathrm{N}$, and $^{16}\mathrm{O}$. We examine the target and the $\Lambda\Lambda$ bond energy dependence of the double $\Lambda$ hyperfragment formation probabilities, especially of those double hypernuclei observed in experiments. For the $^{12}\mathrm{C}$ ($^{14}\mathrm{N}$) target, the formation probabilities of $^{\,\;\;6}_{\Lambda\Lambda}\mathrm{He}$ and $^{\;10}_{\Lambda\Lambda}\mathrm{Be}$ ($^{\;13}_{\Lambda\Lambda}\mathrm{B}$) are found to be reasonably large as they are observed in the KEK-E373 (KEK-E176) experiment. By comparison, for the $^{16}\mathrm{O}$ target, the formation probability of $^{\;11}_{\Lambda\Lambda}\mathrm{Be}$ is calculated to be small with $\Delta B_{\Lambda\Lambda}$ consistent with the Nagara event. We also evaluate the formation probability of ${}^{\,\;\;5}_{\Lambda\Lambda}\mathrm{H}$ from a $\Xi^-$–${}^{6}\mathrm{He}$ bound state, ${}^{7}_{\Xi}\mathrm{H}$.

Double-lambda compound nucleus and the formation of double hypernuclei

1992 ◽  
Vol 42 (11) ◽  
pp. 1137-1142 ◽  
Author(s):  
Toshimitsu Yamazaki ◽  
Hirokazu Tamura
Keyword(s):  
Compound Nucleus ◽  
Double Hypernuclei

The identified ΛΛ-hypernuclei and the predicted H-particle

1989 ◽  
Vol 426 (1870) ◽  
pp. 1-17 ◽  
Keyword(s):  
Energy Spectrum ◽  
Simple Calculation ◽  
Double Hypernuclei ◽  
Salient Features

The existence of the H particle, the dihyperon predicted by Jaffe, would bring into question the existence of double hypernuclei. We review the two double hypernucleus events published in the literature. We include an independent report, hitherto unpublished, which was made on the ΛΛ 10 Be event in 1963 and clarifies the salient features of the event; this report reaffirms its published interpretation. We have made a simple calculation of the energy spectrum for Ξ - hyperons produced with K - beams in past emulsion experiments, with a result which accounts adequately for the paucity of reported double hypernucleus events. We outline a hybrid emulsion experiment that would locate Ξ - hyperon interactions efficiently and could thereby greatly improve our knowledge of double hypernuclei.

Characteristic study of the internal target for the Double Hypernuclei physics at PANDA

2014 ◽  
Vol 9 (04) ◽  
pp. P04012-P04012 ◽  
Author(s):  
H Younis ◽  
F Balestra ◽  
F Iazzi ◽  
R Introzzi ◽  
A Lavagno ◽  
...  
Keyword(s):  
Internal Target ◽  
Double Hypernuclei

Existence of Light Double Hypernuclei

1965 ◽  
Vol 14 (24) ◽  
pp. 991-995 ◽  
Author(s):  
Y. C. Tang ◽  
R. C. Herndon
Keyword(s):  
Double Hypernuclei

STATISTICAL DECAY OF EXCITED ΛΛ HYPERNUCLEI AND γ-SPECTROSCOPY AT $\rm \bar P \rm ANDA$

2010 ◽  
Vol 19 (12) ◽  
pp. 2644-2649 ◽  
Author(s):  
A. Sanchez Lorente ◽  
J. Pochodzalla ◽  
A. Botvina
Keyword(s):  
Excited States ◽  
High Precision ◽  
Event Generator ◽  
Simulation Framework ◽  
Double Hypernuclei ◽  
Statistical Decay ◽  
Decay Model ◽  
Hypernuclear Physics ◽  
First Time

Hypernuclear physics is currently attracting renewed attention. Thanks to the use of stored [Formula: see text] beams, copious production of double Λ hypernuclei is expected at the [Formula: see text] experiment which will enable high precision γ-spectroscopy of such nuclei for the first time. In the present work we have studied the population of particle stable, excited states in double hypernuclei after the capture of a Ξ- within a statistical decay model. In order to check the feasibility of producing and performing γ-spectroscopy of double hypernuclei at [Formula: see text], an event generator based on these calculations has been implemented in the [Formula: see text] simulation framework PANDAROOT.

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