Chirally motivated <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mover accent="true"><mml:mi>K</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mi>N</mml:mi></mml:math> amplitudes for in-medium applications

Cieplý, A.; Smejkal, J.

doi:10.1016/j.nuclphysa.2012.01.028

Cited by 107 publications

(199 citation statements)

References 42 publications

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“…1 and 2 are different, providing thereby an interesting model dependence to explore. Real part of six K − N s-wave amplitudes used in the present work, taken from chiral SU(3) meson-baryon coupled-channel dynamical models discussed in [3] and denoted there by KM for Kyoto-Munich [16], P for Prague [17], M1 and M2 for Murcia [18], and B1 and B2 for Bonn [19]. Vertical dotted lines indicate threshold energies.…”

Section: Input K − N Amplitudesmentioning

confidence: 99%

K−N amplitudes below threshold constrained by multinucleon absorption

Friedman¹,

Gal²

2017

Nuclear Physics A

123

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Six widely different subthreshold K − N scattering amplitudes obtained in SU(3) chiral-model EFT approaches by fitting to low-energy and threshold data are employed in optical-potential studies of kaonic atoms. Phenomenological terms representing K − multinucleon interactions are added to the EFT-inspired single-nucleon part of the K − -nucleus optical potential in order to obtain good fits to kaonic-atom strong-interaction level shifts and widths across the periodic table. Introducing as a further constraint the fractions of single-nucleon K − absorption at rest from old bubble-chamber experiments, it is found that only two of the models considered here reproduce these absorption fractions. Within these two models, the interplay between single-nucleon and multinucleon K − interactions explains features observed previously with fully phenomenological optical potentials. Radial sensitivities of kaonic atom observables are re-examined, and remarks are made on the role of 'subthreshold kinematics' in absorption-at-rest calculations.

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Section: Input K − N Amplitudesmentioning

confidence: 99%

K−N amplitudes below threshold constrained by multinucleon absorption

Friedman¹,

Gal²

2017

Nuclear Physics A

123

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“…This has been demonstrated recently in Refs. [3,4,5] where inmedium K − N amplitudesF K − N constructed within the chirally motivated separable-interaction models of Cieplý and Smejkal (CS) [6,7] were used to evaluate V (1) K − . In particular, models TW1 and NLO30 from Ref.…”

Section: Introductionmentioning

confidence: 99%

Kaonic atoms and in-medium amplitudes II: Interplay between theory and phenomenology

Friedman

Gal

2013

Nuclear Physics A

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A microscopic kaonic-atom optical potential V (1) K − is constructed, using the Ikeda-Hyodo-Weise NLO chiral K − N subthreshold scattering amplitudes constrained by the kaonic hydrogen SIDDHARTA measurement, and incorporating Pauli correlations within the Waas-Rho-Weise generalization of the Ericson-Ericson multiple-scattering approach. Good fits to kaonic atom data over the entire periodic table require additionally sizable K − NN-motivated absorptive and dispersive phenomenological terms, in agreement with our former analysis based on a post-SIDDHARTA in-medium chirally-inspired NLO separable model by Cieplý and Smejkal. Such terms are included by introducing a phenomenological potential V (2) K − and coupling it self-consistently to V (1) K − . Properties of resulting kaonic atom potentials are discussed with special attention paid to the role of K − -nuclear absorption and to the extraction of density-dependent amplitudes representing K − multi-nucleon processes.

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“…In our calculations [4][5][6][7][8] we applied meson-baryon coupled-channel separable s-wave interactions by Cieplý and Smejkal [3,9] which are matched to equivalent chiral SU(3) scattering amplitudes derived from the chiral effective Lagrangian at up to next-to-leading order (NLO). Solving the coupled-channel Lippmann-Schwinger equations F = V + VGF with the potential kernels leads to a separable in-medium scattering amplitudes F i j , given in the two-body cm system by…”

Section: In-mediumkn Scattering Amplitudesmentioning

confidence: 99%

“…4. Here, the K − nuclear potential for 1s state in Ca at threshold ('E th ') calculated using the '+SE'KN NLO30 amplitude [9] is compared with the potential for the energy shift δ √ s, evaluated self-consistently according to Eq. 6 (denoted 'E SC ').…”

Section: Many-body Systemsmentioning

confidence: 99%

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\(\bar{K}\)N Interactions in the Nuclear Medium and \(\bar{K}\) Nuclear Quasi-Bound States

Mareš¹,

Gal²,

Gazda³

et al. 2017

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

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Recent calculations of K − nuclear quasi-bound states are reviewed. We focus on the role played by energy dependendence of theKN interactions constructed within chirally motivated coupled channel models that capture the physics of the Λ(1405) resonance. First, we discuss three-body and four-body systems and compare binding energies and widths of kaonic nuclear quasi-bound states calculated using chiral and phenomenologicalKN interactions. Then, we use in-mediumKN scattering amplitudes developed within chirally-based models to construct K − nuclear potentials for calculations of K − nuclear states in many-body systems. We demonstrate that correct self-consistent treatment of the strong energy dependence of the scattering amplitudes is crucial.

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Chirally motivated K¯N amplitudes for in-medium applications

Cited by 107 publications

References 42 publications

K−N amplitudes below threshold constrained by multinucleon absorption

K−N amplitudes below threshold constrained by multinucleon absorption

Kaonic atoms and in-medium amplitudes II: Interplay between theory and phenomenology

\(\bar{K}\)N Interactions in the Nuclear Medium and \(\bar{K}\) Nuclear Quasi-Bound States

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