Kaon-Nucleus Interaction Studied through the in-flight Reactions

Kishimoto, T.; Hayakawa, T.; Ajimura, S.; Khanam, F.; Itabashi, T.; Matsuoka, K.; Minami, Shigeo; Mitoma, Y.; Sakaguchi, A.; Shimizu, Y.; Terai, Kiyoshi; Chrien, R. E.; Pile, P.; Noumi, H.; Sekimoto, M.; Takahashi, Hajime; Fukuda, T.; Imoto, W.; Mizoi, Y.

doi:10.1016/j.nuclphysa.2009.05.066

Cited by 11 publications

(4 citation statements)

References 17 publications

Supporting

Mentioning

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“…On the other hand, fits to the K − atomic data [13,14], in terms of phenomenological densitydependent optical potentials or relativistic mean-field calculations [15], lead to much stronger potentials with depths of about −200 MeV at density ρ 0 . This is in line with the results obtained in one experiment [16,17] but is in conflict with the self-consistent approaches mentioned above. However, it should be noted that the antikaonicatom data probe the surface of the nucleus and thus do not provide strong constraints on the K − -nucleus potential at normal nuclear matter density.…”

Section: Introductionsupporting

confidence: 75%

“…800 MeV/c [41]. However, it is hard to reconcile our value with the deep potential of order −200 MeV claimed in experiments that studied in-flight (K − , N ) reactions on 12 C and 16 O at 1 GeV/c [16,17]. On the other hand, it has been argued [52,53] that the (K − , N ) experiment was not suitable for extracting information about the depth of the K − -nucleus optical potential, though it could provide valuable information about two and three nucleon absorption mechanisms.…”

Section: Analysis Of Datamentioning

confidence: 81%

See 1 more Smart Citation

Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy

Kiselev¹,

Hartmann²,

Polyanskiy³

et al. 2015

Phys. Rev. C

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The production of non-φ K + K − pairs by protons of 2.83 GeV kinetic energy on C, Cu, Ag, and Au targets has been investigated using the COSY-ANKE magnetic spectrometer. The K − momentum dependence of the differential cross section has been measured for laboratory polar angles θ K ± ≤ 12 • over the 0.2-0.9 GeV/c range. The comparison of the data with detailed model calculations indicates an attractive K − -nucleus potential of about −60 MeV at normal nuclear matter density at a mean momentum of 0.5 GeV/c. However, this approach has difficulty in reproducing the smallness of the observed cross sections at low K − momenta.

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Section: Introductionsupporting

confidence: 75%

Section: Analysis Of Datamentioning

confidence: 81%

Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy

Kiselev¹,

Hartmann²,

Polyanskiy³

et al. 2015

Phys. Rev. C

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show abstract

“…Furthermore, it is consistent with the moderate K − -nucleus potential of the order of -50 to -80 MeV predicted by calculations based on a chiral Lagrangian [143,144,[168][169][170][171] or on meson-exchange potentials [172,173], as well as with a smaller potential of about -28 MeV at density ρ 0 , extracted at an antikaon momentum of 0.8 GeV/c [184]. However, it is difficult to reconcile these values with the very deep potentials of order -200 MeV claimed in experiments studying in-flight (K − ,N ) reactions on 12 C and 16 O at 1 GeV/c [185,186]. The analysis of the latter data has, however, been questioned in [187].…”

Section: Determination Of the K − -Nucleus Real Potentialmentioning

confidence: 99%

Meson–nucleus potentials and the search for meson–nucleus bound states

Metag

Nanova

Paryev

2017

Progress in Particle and Nuclear Physics

108

102

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Recent experiments studying the meson-nucleus interaction to extract meson-nucleus potentials are reviewed. The real part of the potentials quantifies whether the interaction is attractive or repulsive while the imaginary part describes the meson absorption in nuclei. The review is focused on mesons which are sufficiently long-lived to potentially form meson-nucleus quasi-bound states. The presentation is confined to meson production off nuclei in photon-, pion-, proton-, and lightion induced reactions and heavy-ion collisions at energies near the production threshold. Tools to extract the potential parameters are presented. In most cases, the real part of the potential is determined by comparing measured meson momentum distributions or excitation functions with collision model or transport model calculations. The imaginary part is extracted from transparency ratio measurements. Results on K + , K 0 , K − , η, η , ω, and φ mesons are presented and compared with theoretical predictions. The interaction of K + and K 0 mesons with nuclei is found to be weakly repulsive, while the K − , η, η , ω and φ meson-nucleus potentials are attractive, however, with widely different strengths. Because of meson absorption in the nuclear medium the imaginary parts of the meson-nucleus potentials are all negative, again with a large spread. An outlook on planned experiments in the charm sector is given. In view of the determined potential parameters, the criteria and chances for experimentally observing meson-nucleus quasi-bound states are discussed. The most promising candidates appear to be the η and η mesons.

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“…A fairly new and independent evidence in favor of extremely deep K-nucleus potentials is provided by (K − , n) and (K − , p) spectra taken at KEK on 12 C [40] and very recently also on 16 O [41] at p K − = 1 GeV/c. The 12 C spectra are shown on the l.h.s.…”

Section: σ Nuclear Repulsion From σ − Atomsmentioning

confidence: 99%

Nuclear Medium Effects from Hadronic Atoms

Friedman¹,

Gal²

2011

From Nuclei to Stars

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The state of the art in the study of π − , K − and Σ − atoms, along with the inmedium nuclear interactions deduced for these hadrons, is reviewed. A special emphasis is placed on recent developments inK-nuclear physics, where a strongly attractive density dependent K − -nuclear potential of order 150-200 MeV in nuclear matter emerges by fitting K − -atom data. This has interesting repercussions onK quasibound nuclear states, on the composition of strange hadronic matter and onK condensation in self bound hadronic systems.

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Kaon-Nucleus Interaction Studied through the in-flight Reactions

Cited by 11 publications

References 17 publications

Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy

Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy

Meson–nucleus potentials and the search for meson–nucleus bound states

Nuclear Medium Effects from Hadronic Atoms

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