Spectroscopic study of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">B</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow><mml:mi mathvariant="normal">Λ</mml:mi></mml:mrow><mml:mrow><mml:mn>10</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal

Hasegawa, T.; Hashimoto, Osamu; Homma, S.; Miyachi, T.; Nagae, T.; Sekimoto, M.; Shibata, T.; Sakaguchi, H.; Takahashi, T.; Aoki, Katsumi; Noumi, H.; Bhang, H.; Youn, M.; Gavrilov, Yu.K.; Ajimura, S.; Kishimoto, T.; Ohkusu, A.; Maeda, K.; Sawafta, R.; Redwine, R.

doi:10.1103/physrevc.53.1210

Cited by 160 publications

(85 citation statements)

References 41 publications

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“…[37], that the (1115) acquires an attractive shift of about 10 MeV when the self-consistent dressing of the antikaons is considered. If the in-medium pion self-energy is also incorporated, the (1115) develops an attraction three times larger, of 28 MeV, in accordance to what is demanded by hypernuclear spectroscopic data [51] and also to what is obtained from nuclear matter microscopic calculations using the recent meson-exchange Y N potentials [52][53][54][55]. The reason lies in that the dressing of the pions implicitly incorporates, through the coupling of the pion to ph states, an important piece of the N interaction, namely the N → N transition potential mediated by pion-exchange.…”

Section: Resultssupporting

confidence: 77%

Chiral approach to antikaons- andp-wave interactions in dense nuclear matter

2006

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The properties of the antikaons in nuclear matter are investigated from a chiral unitary approach which incorporates the s-and p-waves of theKN interaction. To obtain the in-medium meson-baryon amplitudes we include, in a self-consistent way, Pauli blocking effects, meson self-energies corrected by nuclear short-range correlations and baryon binding potentials. We pay special attention to investigating the validity of the on-shell factorization, showing that it cannot be applied in the evaluation of the in-medium corrections to the p-wave amplitudes. In nuclear matter at saturation energy, the and develop an attractive potential of about −30 MeV, while the * pole remains at the free space value although its width gets sensibly increased to about 80 MeV. The antikaon also develops a moderate attraction that does not support the existence of very deep and narrow bound states, confirming the findings of previous self-consistent calculations.

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Section: Resultssupporting

confidence: 77%

Chiral approach to antikaons- andp-wave interactions in dense nuclear matter

2006

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“…The 0.78 MeV (FWHM) resolution is almost three times better than the measurement of its mirror Λ hypernucleus, 10 Λ B measured at KEK (2.2 MeV FWHM) using the (π + , K + ) reaction [31]. The fitted results are summarized in Table. I as Fit I.…”

Section: A Definition Of the Differential Cross Sectionmentioning

confidence: 83%

High resolution spectroscopic study ofBeΛ10

Gogami¹,

Chen²,

Kawama³

et al. 2016

Phys. Rev. C

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A spectroscopy of a 10 Λ Be hypernucleus was carried out at JLab Hall C using the (e, e ′ K + ) reaction. A new magnetic spectrometer system (SPL+HES+HKS), specifically designed for high resolution hypernuclear spectroscopy, was used to obtain an energy spectrum with a resolution of ∼ 0.78 MeV (FWHM). The well-calibrated spectrometer system of the present experiment using p(e, e ′ K + )Λ,Σ 0 reactions allowed us to determine the energy levels, and the binding energy of the ground state peak (mixture of 1 − and 2 − states) was obtained to be B Λ = 8.55 ± 0.07(stat.) ± 0.11(sys.) MeV. The result indicates that the ground state energy is shallower than that of an emulsion study by about 0.5 MeV which provides valuable experimental information on Charge Symmetry Breaking (CSB) effect in the ΛN interaction.

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“…Λ hypernuclei are the most familiar hypernuclear systems which have been studied extensively by stopped as well as in-flight (K − , π − ) reaction [1,2,3] and also by (π + , K + ) reaction [4,5]. The kinematical properties of the (K − , π − ) reaction allow only a small momentum transfer to the nucleus (at forward angles), thus there is a large probability of populating Λ-substitutional states (Λ assume the same orbital angular momentum as that of the neutron being replaced by it).…”

Section: Introductionmentioning

confidence: 99%

A relativistic two-nucleon model for reaction

2006

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We investigate the A(p, K + ) Λ B reaction within a covariant two nucleon model. We focus on amplitudes which are described by creation, propagation and decay into relevant channel of N * (1650), N * (1710), and N * (1720) intermediate baryonic resonance states in the initial collision of the projectile nucleon with one of its target counterparts This collision is modeled by the exchange of π as well as ρ and ω mesons. The bound state nucleon and hyperon wave functions are obtained by solving the Dirac equation with appropriate scalar and vector potentials. Expressions for the reaction amplitudes are derived taking continuum particle wave functions in both distorted wave and plane wave approximations. Detailed numerical results are presented in the plane wave approximation; estimates of the effects of the initial and final state interactions are given in the eikonal approximation. Cross sections of 1 -2 nb/sr at the peak positions, are obtained for favored transitions in case of heavier targets. PACS numbers: 25.40.V e, 13.75. − n,, 13.75.Jz

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Spectroscopic study ofBΛ10,
T. Hasegawa
¹
,
Osamu Hashimoto
²
,
S. Homma
³

et al.

Cited by 160 publications

References 41 publications

Chiral approach to antikaons- andp-wave interactions in dense nuclear matter

Chiral approach to antikaons- andp-wave interactions in dense nuclear matter

High resolution spectroscopic study ofBeΛ10

A relativistic two-nucleon model for reaction

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Spectroscopic study ofBΛ10,T. Hasegawa1, Osamu Hashimoto2, S. Homma3 et al.

Cited by 160 publications

References 41 publications

Chiral approach to antikaons- andp-wave interactions in dense nuclear matter

Chiral approach to antikaons- andp-wave interactions in dense nuclear matter

High resolution spectroscopic study ofBeΛ10

A relativistic two-nucleon model for reaction

Contact Info

Product

Resources

About

Spectroscopic study ofBΛ10,
T. Hasegawa
¹
,
Osamu Hashimoto
²
,
S. Homma
³

et al.