Hyperons in nuclei

Povh, Bogdan

doi:10.1088/0034-4885/39/9/001

Cited by 48 publications

(13 citation statements)

References 26 publications

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“…!1" Spin(S) 5 He We consider that the shell-model and cluster-model aspects are both crucially important to describe the light P-shell hypernuclei. 21 >' 23 J The incorporation of the two ingredients can be achieved by the microscopic treatment for the three-cluster (a+ x +A) systems listed in Table I (x = n, P, d, t, 3 He or a).…”

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confidence: 99%

Chapter III. Production, Structure an Decay of Lightp-Shell Λ-Hypernuclei

Motoba

Bandō

Ikeda

et al. 1985

Prog. Theor. Phys. Suppl.

104

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The BSA results of the L n = 1-structure characteristics 6. 4. Results and discussion on the L n = 1-resonance states § 7. Summary by guest on March 22, 2015 http://ptps.oxfordjournals.org/ Downloaded from Chapter III. Production, Structure and Decay 43 § 1. IntroductionRecently structures of light hypernuclei attract particular interests, because the strangeness-exchange (K-, Jr) reactions have been providing important information on excited states of A and 2: hypernuclei. In fact the (K-, Jr) reaction experiinents done at CERN,1l-7 > Brookhaven 8 >-to> and KEK 11 > offer new data such as excited state energies, production intensities and-level widths for a number of hypernuclei. In a few cases even the hypernuclear y-rays 7 >,to> and pion angular distributions 9 > have been observed. These experiments, in addition to the previous emulsion studies 12 > giving the ground state energies, opened a gate to the 'hypernuclear spectroscopy' which is expected to disclose dynamical aspects of the hypernuclear structure. 5 >' 13 >-25 > Accordingly the theoretical investigations are required to be leveled up, so that predictions of various physical quantities as well as explanations of the existing data can be made in neccessary details.In this chapter we present the results of a systematic study of the light hypernudei enclosed by the hatched boundary on the chart, Fig. 1, of the known hypernuclides. In these hypernuclei the cluster aspect is essentially important, 2 n" 23 > since the aspect is widely proved to be indispensable in describing the corresponding ordinary nuclei. 26 >' 27 > From this point of view, in the previous papers/ 1 >-23 > we have investigated these hypernuclei by employing the microscopic three-cluster model. This line of our works is summarized and extended here to study the production, structure and decay of these hypernuclei.The shell model is, of course, of fundamental importance as has been widely demontions of §4. In §5 are described the expression and the estimates of the Jr-mesic decay rates. Section 6 is devoted to an advanced treatment for the resonance-peak widths in the 9 Be(K-, Jr-)~Be reaction. The channel-coupled scattering equation is solved and the mechanism of the 'high' -lying resonance is explained. In § 7 the main results of this by guest on March 22, 2015 http://ptps.oxfordjournals.org/ Downloaded from by guest on March 22, 2015 http://ptps.oxfordjournals.org/ Downloaded from 2. 2. Hamiltonian and the adopted model space 2. 2. 1. The orthogonality condition model for the nuclear part by guest on March 22, 2015 http://ptps.oxfordjournals.org/ Downloaded from

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mentioning

confidence: 99%

Chapter III. Production, Structure an Decay of Lightp-Shell Λ-Hypernuclei

Motoba

Bandō

Ikeda

et al. 1985

Prog. Theor. Phys. Suppl.

104

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“…If such a hyperon is taken up by a nucleus, a hyper-nucleus is created. Hypernuclei with one hyperon have been known for 20 years [16]. Several years ago, Carsten Greiner, Jürgen Schaffner and Horst Stöcker [20] theoretically investigated nuclei with many hyperons, hypermatter, and found that the binding energy per baryon of strange matter is in many cases even higher than that of ordinary matter (composed only of u and d quarks).…”

Section: Extension Of the Periodic System Into The Field Of Hyper-andmentioning

confidence: 99%

Superheavy nuclei and beyond: hypermatter and antimatter

Greiner

2012

J. Phys.: Conf. Ser.

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“…For pure states, neglecting the perturbing effect of the A on the core, the doublet separation is at the start of the p shell, 2/3 A + A/3 S. -8/5 T; _1 configuration (1) and, at the end, …”

Section: Fig 1 the Spin-flip Transitions In The ^ He And Systemsmentioning

confidence: 99%

“…1 On the other hand there is some evidence for a sizable I-nucleon spin-orbit interaction. 1 * It has become evident, however, that the details of the A and E-nucleon forces are difficult to deduce from magnetic spectrometers which are limited to a resolution of about 0.1%.…”

Section: Introductionmentioning

confidence: 99%