Recent Developments in Quasi-Free Nucleon-Nucleon Scattering

Kitching, P.; McDonald, W. J.; Maris, Th.A.J.; Vasconcellos, C. A. Z.

doi:10.1007/978-1-4613-2423-2_2

Cited by 40 publications

(6 citation statements)

References 101 publications

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“…(1) is valid only if off-shell effects are not very important. In proton-induced knock-out reactions at high energies this hypothesis has been confirmed in previous works [1,2].…”

Section: A Distorted Wave Impulse Approximationsupporting

confidence: 75%

“…The advantage of the eikonal formalism in comparison with traditional DWIA formalism as described in Refs. [1,2] is enormous because it allows a much easier treatment of the multiple-scattering problem.…”

Section: Plane Wave Impulse Approximationmentioning

confidence: 99%

“…Due to the nuclear spin-orbit coupling and absorption of the projectile and secondary protons in the nuclear matter the proton knocked out from a particular nuclear shell with orbital moment l = 0 can be polarized [1,2,[26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

“…In the next sections we describe a formalism for quasifree knockout reactions, first by describing the state-of-the-art DWIA method which has been shown to reproduce experimental data with a good accuracy [1,2]. Then we introduce a few simplifications which can be justified with the use of eikonal scattering waves, appropriate for high energy scattering.…”

Section: Introductionmentioning

confidence: 99%

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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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“…(1) is valid only if off-shell effects are not very important. In proton-induced knock-out reactions at high energies this hypothesis has been confirmed in previous works [1,2].…”

Section: A Distorted Wave Impulse Approximationsupporting

confidence: 75%

Section: Plane Wave Impulse Approximationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

2013

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“…The success of studies using nucleon knockout reactions in quasi-free kinematics very much hinges on the availability of an approximate expression for the multi-fold cross sections. For example, the quasi-free hypothesis [24,25] has proven its great value and effectiveness in studies of the single-particle properties of nuclei with (p, p p) reactions. The quasi-free hypothesis requires that the transferred energy is large compared to the average binding energy and that the ejected nucleon N carries away most if not all of the transferred energy and momentum.…”

Section: Introductionmentioning

confidence: 99%

Probing short-range correlations in asymmetric nuclei with quasi-free pair knockout reactions

et al. 2018

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Short-range correlations (SRC) in asymmetric nuclei with an unusual neutronto-proton ratio can be studied with quasi-free two-nucleon knockout processes following the collision between accelerated ions and a proton target. We derive an approximate factorized cross section for those SRC-driven p(A, p N 1 N 2 ) reactions. Our reaction model hinges on the factorization properties of SRC-driven A(e, e N 1 N 2 ) reactions for which strong indications are found in theory-experiment comparisons. In order to put our model to the test we compare its predictions with results of 12 C(p, p pn) measurements conducted at Brookhaven National Laboratory (BNL) and find a fair agreement. The model can also reproduce characteristic features of SRC-driven two-nucleon knockout reactions, like back-to-back emission of the correlated nucleons. We study the asymmetry dependence of nuclear SRC by providing predictions for the ratio of proton-proton to proton-neutron knockout cross sections for the carbon isotopes 9−15 C thereby covering neutron excess values (N − Z)/Z between -0.5 and +0.5.

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The (p,2p) Reaction in the Dirac Impulse Approximation

Cooper¹,

Maxwell²

1988

Spin Observables of Nuclear Probes

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Recent Developments in Quasi-Free Nucleon-Nucleon Scattering

Cited by 40 publications

References 101 publications

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

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

Probing short-range correlations in asymmetric nuclei with quasi-free pair knockout reactions

The (p,2p) Reaction in the Dirac Impulse Approximation

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