Observation of Coulomb-Assisted Nuclear Bound State of 
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Hayakawa, Shuhei; Agari, K.; Ahn, J. K.; Akaishi, Takao; Akazawa, Y.; Ashikaga, S.; Bassalleck, B.; Bleser, S.; Ekawa, H.; Endo, Yuichi; Fujikawa, Yuki; Fujioka, N.; Fujita, Masaya; Goto, R.; Han, Y.; Hasegawa, Shoichi; Hashimoto, Takashi; Hayakawa, T.; Hayata, E.; Hicks, K.; Hirose, E.; Hirose, Masahiro; Honda, Ryumon; Hoshino, K.; Hoshino, Satoshi; Hosomi, K.; Hwang, S. H.; Ichikawa, Y.; Ichikawa, M.; Imai, K.; Inaba, K.; Ishikawa, Yuji; Ito, H.; Ito, K.; Jung, W. S.; Kanatsuki, Shunsuke; Kanauchi, H.; Kasagi, A.; Kawai, Takeshi; Kim, M H; Kim, S H; Kinbara, Shinji; Kiuchi, R.; Kobayashi, H.; Kobayashi, Kazuya; Koike, T.; Koshikawa, A.; Lee, J Y; L, T; Matsumoto, Shota; Minakawa, M.; Miwa, K.; Moe, A. T.; Moon, Taejin; Moritsu, Manabu; Nagase, Y.; Nakada, Yasuki; Nakagawa, Mayumi; Nakashima, D.; Nakazawa, Kimitaka; Nanamura, T.; Naruki, M.; Nyaw, A. N. L.; Ogura, Y.; Ohashi, M.; Oue, K.; Ozawa, Seiji; Pochodzalla, J.; Ryu, Sun Young; Sako, H.; Sato, Susumu; Sato, Yoshihiro; Schupp, Falk; Shirotori, K.; Soe, M. M.; Soe, Myint Kyaw; Sohn, J. Y.; Sugimura, Hitoshi; Suzuki, Kazuki; Takahashi, Hajime; Takahashi, T.; Takeda, Tomoya; Tamura, H.; Tanida, K.; Theint, Aye Moh Moh; Tint, Khin Than; Toyama, Yuichi; Ukai, M.; Umezaki, E.; Watabe, Toyoki; Watanabe, K.; Yamamoto, T. O.; Yang, S.; Yoon, C. S.; Yoshida, Junya; Yoshimoto, Masahiro; Zhang, D H; Zhang, Z

doi:10.1103/physrevlett.126.062501

Cited by 52 publications

(27 citation statements)

References 29 publications

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“…Both sets of data indicate an attractive Ξ single particle potential compatible with a 1p state, and consequently bound Ξ-hypernuclei. More recently, in an emulsion-counter hybrid experiment performed at J-PARC [9], they observed a Ξ − absorption event on 14 N, which decayed into twin single-Λ hypernuclei. Furthermore, in this case, the Ξ − energy level was compatible with a 1p state.…”

Section: Relativistic Mean-field Modelsmentioning

confidence: 99%

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Hyperons in Neutron Stars

Logoteta

2021

Universe

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I review the issues related to the appearance of hyperons in neutron star matter, focusing in particular on the problem of the maximum mass supported by hyperonic equations of state. I discuss the general mechanism that leads to the formation of hyperons in the core of neutron stars and I review the main techniques and many-body methods used to construct an appropriate equation of state to describe the strongly interacting system of hadrons hosted in the core of neutron stars. I outline the consequences on the structure and internal composition of neutron stars and also discuss the possible signatures of the presence of hyperons in astrophysical dynamical systems like supernova explosions and binary neutron star mergers. Finally, I briefly report about the possible important role played by hyperons in the transport properties of neutron star matter and on the consequences of neutron star cooling and gravitational wave instabilities induced by the presence of hyperons.

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Section: Relativistic Mean-field Modelsmentioning

confidence: 99%

“…Today, more than 40 Λ-hypernuclei have been identified, while there is no clear evidence of the existence of Σ − hypernuclei. Ξ − hypernuclei have been observed in some events [7][8][9][10]. The study of hypernuclei represents a crucial step towards the understanding of hypernuclear interactions.…”

Section: Introductionmentioning

confidence: 99%

Hyperons in Neutron Stars

Logoteta

2021

Universe

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“…This event provides the first clear evidence of a deeply bound state of this system by an attractive ΞN interaction. The latest experimental data obtained by the J-PARC E07 collaboration [114] indicate a value for the binding energy of the Ξ − in the Ξ − -14 N system of 1.27 ± 0.21 MeV. Future Ξ hypernuclei experiments are being planned at J-PARC.…”

Section: Production Of Hypernucleimentioning

confidence: 99%

Hyperons in Finite and Infinite Nuclear Systems

Vidaña

2021

Universe

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In this work, we shortly review the role and properties of hyperons in finite and infinite nuclear systems such as hypernuclei and neutron stars. Particularly, we describe different production mechanisms of hypernuclei, discuss some aspects of their γ-ray spectroscopy and their weak decay modes, and give a few strokes on their theoretical description. We reexamine also the role played by hyperons on the properties of neutron and proto-neutron stars with a special emphasis on the well-known “hyperon puzzle”, of which we discuss some of the solutions that have been proposed to tackle this problem. Finally, we review the role of hyperons on the cooling properties of newly born neutron stars and on the so-called r-mode instability.

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“…The analysis speed of nuclear emulsions has increased remarkably with improvements in image processing techniques 21,22 . These improvements enable the use of nuclear emulsion in modern experiments to study tau neutrino interactions 23 , direct observation of neutrino oscillations 24 , hypernuclei 22,[25][26][27][28] , and for several other applications including muon radiography 29,30 .…”

Section: Introductionmentioning

confidence: 99%

Achieving Submicrometer Spatial Resolution for Neutron Imaging With Nuclear Emulsion

Muneem

Yoshida

Ekawa

et al. 2021

Preprint

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Neutron imaging is a non-destructive inspection technique with a wide range of potential applications. One of the key technical interests concerning neutron imaging is to achieve micrometer-scale spatial resolution. However, developing a neutron detector with a high spatial resolution is a challenging task. Recent efforts are focused on achieving this milestone or even submicrometer spatial resolution. Herein, we introduce our technique for neutron imaging using a fine-grained nuclear emulsion and evaluate the spatial resolution. We used the fine-grained nuclear emulsion with a gadolinium-based Siemens star test pattern and a grating with a periodic structure of 9 μm. The deduced value of the spatial resolution is less than 1 μm using the developed technique. To the best of our knowledge, the submicrometer spatial resolution that we achieved using our method is the best among all reported neutron imaging devices.

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Observation of Coulomb-Assisted Nuclear Bound State of Ξ−–N14 System

Cited by 52 publications

References 29 publications

Hyperons in Neutron Stars

Hyperons in Neutron Stars

Hyperons in Finite and Infinite Nuclear Systems

Achieving Submicrometer Spatial Resolution for Neutron Imaging With Nuclear Emulsion

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