Gamma-ray spectroscopy of hypernuclei — present and future

Tamura, H.; Hosomi, K.; Bufalino, S.; Chiga, N.; Evtoukhovitch, P.; Feliciello, A.; Honda, Ryumon; Koike, T.; Ma, Yue; Miwa, K.; Sasaki, Akira; Sasaki, Yutaka; Shirotori, K.; Tanida, K.; Tsamalaidze, Z.; Ukai, M.; Yamamoto, T. O.; Yang, S. B.

doi:10.1016/j.nuclphysa.2013.03.014

Cited by 29 publications

(32 citation statements)

References 29 publications

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“…A more detailed study of the Λ interaction is based on the measurement of the γ-spectroscopy of Λ hypernuclei [21]. Indeed, the γ spectroscopy allows to study the fine-structure of the interaction and elucidate the spin and angular momentum-dependent effective interaction.…”

Section: Experimental Detectionmentioning

confidence: 99%

“…Theoretical studies have gone hand in hand with scattering experiments employing secondary hyperon beams [18] or, more recently, using femtoscopy techniques [19]. Also, the possible formation of nuclei with one or more hyperons inside the nucleus, the so-called hypernuclei [20][21][22], has triggered a lot of theoretical advances. The aim is to understand how hyperons interact with nucleons and hyperons in vacuum and as a function of density.…”

Section: Introductionmentioning

confidence: 99%

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Strangeness in nuclei and neutron stars

Tolós

Fabbietti

2020

Progress in Particle and Nuclear Physics

188

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We review the present status of the experimental and theoretical developments in the field of strangeness in nuclei and neutron stars. We start by discussing theKN interaction, that is governed by the presence of the Λ(1405). We continue by showing the two-pole nature of the Λ(1405), and the production mechanisms in photon-, pion-, kaon-induced reactions as well as proton-proton collisions, while discussing the formation ofKN N bound states. We then move to the theoretical and experimental analysis of the properties of kaons and antikaons in dense nuclear matter, paying a special attention to kaonic atoms and the analysis of strangeness creation and propagation in nuclear collisions. Next, we examine the φ meson and the advances in photoproduction, protoninduced and pion-induced reactions, so as to understand its properties in dense matter. Finally, we address the dynamics of hyperons with nucleons and nuclear matter, and the connection to the phases of dense matter with strangeness in the interior of neutron stars.

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Section: Experimental Detectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strangeness in nuclei and neutron stars

Tolós

Fabbietti

2020

Progress in Particle and Nuclear Physics

188

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“…See Ref. [14] for details. At J-PARC, we employ the K1.8 beam line and the SKS spectrometer to measure the missing mass spectrum of the (K − , π − ) reaction as shown in Fig.…”

Section: Experimental Setup -Hyperball-j and Sks Spectormeter At J-parcmentioning

confidence: 99%

Gamma-ray Spectroscopy of Hypernuclei — Recent Results and Prospect at J-PARC —

Tamura¹,

Yamamoto²,

Agnello³

et al. 2017

Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015)

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The present status and future prospects of precision γ-ray spectroscopy of Λ hypernuclei are described. A new experiment (J-PARC E13) has been performed at the J-PARC K1.8 line employing a newly-developed germanium (Ge) detector array, Hyperball-J, via the (K − , π − ) reaction on 4 He and 19 F targets. This is the first study of s-shell and sd-shell Λ hypernuclei with Ge detectors. The 4 He target spectrum exhibited a γ-ray peak of 4 Λ He(1 + → 0 + ) at 1.406 ± 0.002 ± 0.002 MeV. Compared with the energy (1.09 ± 0.02 MeV) of the corresponding transition for the mirror hypernucleus, 4 Λ H(1 + → 0 + ), the present result clearly indicates a large charge symmetry breaking (CSB) effect. This decisive data for CSB allows a stringent test of baryon-baryon interaction models. As for the 19 F target run, a preliminary spectrum shows several γ-ray peaks assigned to 19 Λ F transitions. Future plans of γ-ray spectroscopy are also discussed.

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“…After the (π + , K + ) reaction experiments done for wide mass number region [1], great progress has been made by the coincidence measurements of γ-rays from p-shell hypernuclei [2], which have provided hypernuclear energy level details within the remarkably good energy resolution of the order of several keV. In view of the spectroscopy from hypernuclear production reaction, it should be also epoch-making that the (e, e ′ K + ) reaction experiments have been successfully carried out in the last decade at Hall-A [3][4][5] and Hall-C [6][7][8][9][10] of the Jefferson National Laboratory.…”

Section: Introductionmentioning

confidence: 99%

Photoproduction of Typical Hypernuclei

Motoba

2017

Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015)

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The recent JLab (e, e ′ K + ) experiments provide nice opportunity to test the DWIA theoretical estimates of cross sections, and in fact the predictions for 12 Λ B have been confirmed. Newly calculated spectra are presented for hypernuclear photoproduction with typical light and heavy targets, discussing wide variety of applications. A sophisticated treatment of using extended wave functions is proposed, where parity-mixing intershell coupling mediated by Λ is naturally taken into account.

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Gamma-ray spectroscopy of hypernuclei — present and future

Cited by 29 publications

References 29 publications

Strangeness in nuclei and neutron stars

Strangeness in nuclei and neutron stars

Gamma-ray Spectroscopy of Hypernuclei — Recent Results and Prospect at J-PARC —

Photoproduction of Typical Hypernuclei

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