Strangeness exchange reaction on nuclei

Brückner, W.; Granz, B.; Ingham, D.; Kilian, K.; Lynen, U.; Niewisch, J.; Pietrzyk, B.; Povh, Bogdan; Ritter, H.G.; Schröder, H.

doi:10.1016/0370-2693(76)90689-4

Cited by 96 publications

(59 citation statements)

References 6 publications

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“…The remaining system then does not carry linear momentum and thus favours the probability that a produced η is bound to the residual nucleus. This method, originally developed in the production of hypernuclei [94], was successfully applied in the study of pionic atoms [95]. In order to transfer the beam momentum almost completely to the emerging particle it has to be emitted in the forward direction close at zero degrees.…”

Section: Transfer Reactionsmentioning

confidence: 99%

Search for quasi boundηmesons

Machner

2015

J. Phys. G: Nucl. Part. Phys.

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The search for a quasi bound η meson in atomic nuclei is reviewed. This tentative state is studied theoretically as well as experimentally. The theory starts from elastic η nucleon scattering which is derived from production data within some models. From this interaction the η nucleus interaction is derived. Model calculations predict binding energies and widths of the quasi bound state. Another method is to derive the η nucleus interaction from excitation functions of η production experiments. The s wave interaction is extracted from such data via final state interaction theorem. We give the derivation of s wave amplitudes in partial wave expansion and in helicity amplitudes and their relation to observables. Different experiments extracting the final state interaction are discussed as are production experiments. So far only three experiments give evidence for the existence of the quasi bound state: a pion double charge exchange experiment, an effective mass measurement, and a transfer reaction at recoil free kinematics with observation of the decay of the state.

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Section: Transfer Reactionsmentioning

confidence: 99%

Search for quasi boundηmesons

Machner

2015

J. Phys. G: Nucl. Part. Phys.

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“…The systematic spectroscopy of hypernuclei started in the early seventies with the investigation of (K-, ~) reactions leading to A-hypernuclear states in light nuclei (A<40) [1]. The phenomenological shell model analysis of these data [2] has led to relatively firm conclusions about binding energies and the Anuclear spin-orbit interaction.…”

Section: Introductionmentioning

confidence: 99%

Shell model analysis of ?-hypernuclear spectra for massA=12 andA=16

Hausmann

Weise

1986

Z. Physik A - Atomic Nuclei

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We present a systematic shell-model analysis of ~-hypernuclear states as seen in (K-, ~z) reactions. A consistent description of data obtained both with stopped kaons and with in-flight kinematics can be achieved with a Z-nucleus single particle potential depth between 15 and 20 MeV, a weak 2;N residual interaction and a XN-spin-orbit interaction about twice as strong as the one for the nucleon. At the same time we point out unresolved problems and uncertainties related to the continuum properties and the widths of Z-hypernuclear states.

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“…The term "analogue state" is used to refer to the state obtained by substituting a p-shell Λ for a p-shell neutron in the same space-spin state. Much important Λ-hypernuclear experimental work based on the idea of Podgoretsky was done by Bogdan Povh (Heidelberg Saclay Collaboration at CERN) [5] and by R. Chrien at BNL [6].…”

Section: Hypernuclear Spectroscopymentioning

confidence: 99%

Translational invariant shell model for Λ hypernuclei

Jolos¹,

Majling²,

Majlingová

2016

EPJ Web of Conferences

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Abstract. We extend shell model for Λ hypernuclei suggested by Gal and Millener by including 2 ω excitations in the translation invariant version to estimate yields of different hyperfragments from primary p-shell hypernuclei. We are inspired by the first successful experiment done at MAMI which opens way to study baryon decay of hypernuclei. We use quantum numbers of group SU(4), [ f ], and SU(3), (λμ), to classify basis wave functions and calculate coefficients of fractional parentage.

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Strangeness exchange reaction on nuclei

Cited by 96 publications

References 6 publications

Search for quasi boundηmesons

Search for quasi boundηmesons

Shell model analysis of ?-hypernuclear spectra for massA=12 andA=16

Translational invariant shell model for Λ hypernuclei

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