Extended-soft-core baryon-baryon model. I. Nucleon-nucleon scattering with the ESC04 interaction

Rijken, Th. A.

doi:10.1103/physrevc.73.044007

Cited by 77 publications

(12 citation statements)

References 50 publications

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“…(19) and (20) leads, for V NN vertices, to results reported in Table II, which also presents results from three other works for comparison. Our values for ρ are smaller than those extracted by the MAID analysis [43] and also coming from Bonn [86] and Nijmegen [87] potentials. Note that results from these latter potentials differ between themselves by 30% to 50%.…”

Section: A Fitting Procedurescontrasting

confidence: 82%

ηproduction off the proton in a Regge-plus-chiral quark approach

Saghai

2010

Phys. Rev. C

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A chiral constituent quark model approach, embodying s-and u-channel exchanges, complemented with a Reggeized treatment for the t channel is presented. A model is obtained allowing data for π − p → ηn and γp → ηp to be described satisfactorily. For the latter reaction, recently released data by the CLAS and CBELSA/TAPS Collaborations in the system total energy range 1.6 W 2.8 GeV are well reproduced by the inclusion of Reggeized trajectories instead of simple ρ and ω poles. The contribution from "missing" resonances, with masses below 2 GeV, is found to be negligible in the considered processes.

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Section: A Fitting Procedurescontrasting

confidence: 82%

ηproduction off the proton in a Regge-plus-chiral quark approach

Saghai

2010

Phys. Rev. C

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“…We adopted the latest version of the extended soft-core model (ESC04) [20,21] as the free-space NN interaction. The obtained G-matrix interaction in coordinate space is parametrized with three-range Gaussian form factors for each spin-isospin component, which depends on the nucleon energy and the density of nuclear matter.…”

Section: Folding-model Calculationsmentioning

confidence: 99%

Repulsive nature of optical potentials for high-energy heavy-ion scattering

2010

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The recent works by the present authors predicted that the real part of heavy-ion optical potentials changes its character from attraction to repulsion around the incident energy per nucleon E/A = 200-300 MeV on the basis of the complex G-matrix interaction and the double-folding model (DFM) and revealed that the three-body force plays an important role there. In the present paper, we have precisely analyzed the energy dependence of the calculated DFM potentials and its relation to the elastic-scattering angular distributions in detail in the case of the 12 C + 12 C system in the energy range of E/A = 100-400 MeV. The tensor force contributes substantially to the energy dependence of the real part of the DFM potentials and plays an important role to lower the attractive-to-repulsive transition energy. The nearside and farside (N/F ) decompositions of the elastic-scattering amplitudes clarify the close relation between the attractive-to-repulsive transition of the potentials and the characteristic evolution of the calculated angular distributions with the increase of the incident energy. Based on the present analysis, we propose experimental measurements for the predicted strong diffraction phenomena of the elastic-scattering angular distribution caused by the N/F interference around the attractive-to-repulsive transition energy together with the reduced diffractions below and above the transition energy.

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“…The elliptic flow, in contrast, depends strongly on the maximum compression that is reached and it is correlated with the stiffness of the EoS. The analysis of laboratory experiments in comparison with simulations indicates that the incompressibility of symmetric nuclear matter cannot be too high (Welke et al, 1988;Danielewicz, Lacey, and Lynch, 2002;Reisdorf et al, 2012;Le Fèvre et al, 2016) (see Sec. V.D.3 and Fig.…”

Section: Heavy-ion Collisionsmentioning

confidence: 99%

Equations of state for supernovae and compact stars

et al. 2017

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A review is given of various theoretical approaches for the equation of state (EoS) of dense matter, relevant for the description of core-collapse supernovae, compact stars, and compact star mergers. The emphasis is put on models that are applicable to all of these scenarios. Such EoS models have to cover large ranges in baryon number density, temperature, and isospin asymmetry. The characteristics of matter change dramatically within these ranges, from a mixture of nucleons, nuclei, and electrons to uniform, strongly interacting matter containing nucleons, and possibly other particles such as hyperons or quarks. As the development of an EoS requires joint efforts from many directions, different theoretical approaches are considered and relevant experimental and observational constraints which provide insights for future research are discussed. Finally, results from applications of the discussed EoS models are summarized.

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Extended-soft-core baryon-baryon model. I. Nucleon-nucleon scattering with the ESC04 interaction

Cited by 77 publications

References 50 publications

ηproduction off the proton in a Regge-plus-chiral quark approach

ηproduction off the proton in a Regge-plus-chiral quark approach

Repulsive nature of optical potentials for high-energy heavy-ion scattering

Equations of state for supernovae and compact stars

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