Microscopic calculation of in-medium proton-proton cross sections

Li, Guoqiang; Machleidt, R.

doi:10.1103/physrevc.49.566

Cited by 195 publications

(153 citation statements)

References 16 publications

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“…These corrections for nucleon-nucleon scattering in nuclear matter have been studied in, e.g., Refs. [62][63][64][65][66][67][68][69]. A calculation of medium effects using Brueckner-Hartree-Fock method shows that medium corrections are mainly due to Pauli blocking, which can be linked to functions of the local nucleon densities [69].…”

Section: F Nucleon-nucleon Cross Sectionsmentioning

confidence: 99%

Quasifree (p,2p) and (p,pn)

2013

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We study (p,2p) and (p,pn) reactions at proton energies in the range of 100 MeV-1 GeV. Our purpose is to explore the most sensitive observables in unpolarized reactions with inverse kinematics involving radioactive nuclei. We formulate a model based on the eikonal theory to describe total cross sections and momentum distributions of the recoiled residual nucleus. The model is similar to the one adopted for knockout reactions with heavy ions. We show that momentum distributions are sensitive to the angular momentum of the ejected nucleon which can be used as an spectroscopic tool. The total cross sections are sensitive to the nucleon separation energies and to multiple scattering effects. Our calculations also indicate that a beam energy around 500 MeV/nucleon has a smaller dependence on the anisotropy of the nucleon-nucleon elastic scattering.

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Section: F Nucleon-nucleon Cross Sectionsmentioning

confidence: 99%

Quasifree (p,2p) and (p,pn)

2013

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“…The difference between the (in-medium) np and pp cross sections is discussed in detail in Ref. [93]. In this section, we restrict our discussion of "NN cross sections" to np cross sections.…”

Section: In-medium Nn Cross Sectionsmentioning

confidence: 99%

The Dirac-Brueckner Approach

Brockmann

Machleidt

1999

International Review of Nuclear Physics

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“…On the theoretical side, only medium effects embodied by the so-called Brueckner G-matrix, i.e. those which are linked with the Pauli blocking in intermediate states in the two-body scattering process, have been studied [73][74][75][76][77]. They have a sizeable effect at low energy, but as expected, the effect is vanishing rapidly as the energy increases.…”

Section: Single Scattering Approximation: a Way To Discuss Missing Fementioning

confidence: 99%

Processes involving few degrees of freedom in the frame of Intranuclear Cascade approaches

et al. 2016

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Abstract. This article focuses on spallation reactions, i.e. interactions of energetic nucleons, basically with a kinetic energy in the 100 MeV to a few GeV range, with a target nucleus. These processes are described rather successfully by the so-called Intranuclear Cascade (INC) plus evaporation models. They can be viewed as a first stage of nucleon-nucleon collisions, ejecting fast particles, followed by evaporation of slow particles from the target remnant. These cascade + evaporation models have, now, globally reached a high level of predictive power, owing in particular to successive research programs. The present work, which is an outcome of one of these programs, the recent European Union ANDES research program, deals with a set of reactions (or observable quantities), which can be due to a single collision, such as the one-nucleon removal reactions or the quasi-elastic elastic process. A survey of the experimental data is presented, which allows to clearly point out that, often, the INC models are unsatisfactory for the description of these peculiar events, whereas they are rather successful for the rest of the experimental data. This paradoxical situation is tentatively related to quasi-particle effects which are neglected in INC models.

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Microscopic calculation of in-medium proton-proton cross sections

Cited by 195 publications

References 16 publications

Quasifree (p,2p) and (p,pn)

Quasifree (p,2p) and (p,pn)

The Dirac-Brueckner Approach

Processes involving few degrees of freedom in the frame of Intranuclear Cascade approaches

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