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Cowley, A.A.; Arendse, G. J.; Visser, Runine; Steyn, G.; Förtsch, S. V.; Lawrie, J. J.; Pilcher, J. V.; Noro, T.; Baba, T.; Hatanaka, K.; Kawabata, Masahiro; Matsuoka, N.; Mizuno, Y.; Nomachi, M.; Kondo, Takahisa; Tamura, Kouichi; Yuasa, Y.; Sakaguchi, H.; Itoh, Takehiko; Takeda, Hiroyuki; Watanabe, Yu

doi:10.1103/physrevc.57.3185

Cited by 29 publications

(24 citation statements)

References 21 publications

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“…However, this observable does not permit us to have complete control over the number of knocked out nucleons in the collision. For this reason, in this work we use quadruple-differential cross sections of two coincident protons produced in proton-induced reactions on 40 Ca at 392 [17], and quadruple-and triple-differential cross sections of two coincident protons produced in proton-induced reactions on 197 Au at 200 MeV [88]. We have selected this set of experimental data taking into account the study of onenucleon-removal cross sections performed in Sec.…”

Section: B Quadruple-and Triple-differential Cross Sections For Coinmentioning

confidence: 99%

“…On the one hand, we can follow in time all the particles participating in the nuclear collision, determining their multiple-scattering probabilities and final states. In other models, such as the distorted-wave Born approximation (DWBA) or distorted-wave impulse approximation (DWIA) [14,15], the evaluation of the multiple scattering at higher energies (>300 MeV) is complicated by the possible production of pions and their propagation, which is not considered [16,17]. On the other hand, the dynamical models permit us to characterize the remnant in atomic and mass numbers, excitation energy, and angular momentum [18,19].…”

Section: Introductionmentioning

confidence: 99%

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Improvement of one-nucleon removal and total reaction cross sections in the Liège intranuclear-cascade model using Hartree-Fock-Bogoliubov calculations

et al. 2017

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The prediction of one-nucleon-removal cross sections by the Liège intranuclear-cascade model has been improved using a refined description of the matter and energy densities in the nuclear surface. Hartree-FockBogoliubov calculations with the Skyrme interaction are used to obtain a more realistic description of the radial-density distributions of protons and neutrons, as well as the excitation-energy uncorrelation at the nuclear surface due to quantum effects and short-range correlations. The results are compared with experimental data covering a large range of nuclei, from carbon to uranium, and projectile kinetic energies. We find that the new approach is in good agreement with experimental data of one-nucleon-removal cross sections covering a broad range in nuclei and energies. The new ingredients also improve the description of total reaction cross sections induced by protons at low energies, the production cross sections of heaviest residues close to the projectile, and the triple-differential cross sections for one-proton removal. However, other observables such as quadruple-differential cross sections of coincident protons do not present any sizable sensitivity to the new approach. Finally, the model is also tested for light-ion-induced reactions. It is shown that the new parameters can give a reasonable description of the nucleus-nucleus total reaction cross sections at high energies.

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Section: B Quadruple-and Triple-differential Cross Sections For Coinmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of one-nucleon removal and total reaction cross sections in the Liège intranuclear-cascade model using Hartree-Fock-Bogoliubov calculations

et al. 2017

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“…Garcia et al 1989, hereafter G89). The optical counterpart visible during the low state is an F8IV object (Cowley & Schmidtke 1990) whose colours were initially observed to be inconsistent with a normal star (Kaluzny 1988). However, subsequent observations failed to con®rm this abnormality in the optical colours of the F star (Deutsch et al 1996).…”

Section: U2129 47mentioning

confidence: 99%

Infrared spectroscopy of low-mass X-ray binaries - II

Bandyopadhyay¹,

Shahbaz²,

Charles³

et al. 1999

Monthly Notices of the Royal Astronomical Society

103

101

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Using CGS4 on UKIRT, we have obtained 2.00–2.45 μ m infrared spectra of a number of low‐mass X‐ray binaries including Sco X‐1, Sco X‐2 and GX1 3+1. Sco X‐1 shows emission lines only, supporting our previous conclusion that the spectral type of the evolved secondary must be earlier than G5. Emission lines are also seen in the spectrum of Sco X‐2, confirming the identity of the IR counterpart. We report the detection of CO bands in GX1 3+1, and estimate the most likely spectral type of the secondary to be K5III. We also find P Cygni‐type profiles in the Brackett γ lines of Sco X‐1 and GX1 3+1, indicating the presence of high‐velocity outflows in these systems. We present spectra of candidate IR counterparts to several other elusive X‐ray binaries. Finally, implications for the nature and classification of these systems are discussed.

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“…In DWBA and DWIA, rescattering is modeled as absorption owing to the imaginary part of an optical potential, which seems far-fetched at the energies we are concerned with. Analyses of proton spectra from the continuum have indeed shown that, even in the 200-400 MeV incident-energy range, it is necessary to go beyond DWIA insofar as the description of rescattering is concerned [see, e.g., [29][30][31]. Finally, the evaluation of rescattering at higher energies is complicated by the possible production of pions in the knockout collision.…”

Section: B Appropriateness Of Inc/de-excitationmentioning

confidence: 99%

Improving the description of proton-induced one-nucleon removal in intranuclear-cascade models

et al. 2015

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It is a well-established fact that intranuclear-cascade models generally overestimate the cross sections for one-proton removal from heavy, stable nuclei by a high-energy proton beam, but they yield reasonable predictions for one-neutron removal from the same nuclei and for one-nucleon removal from light targets. We use simple shell-model calculations to investigate the reasons for this deficiency. We find that a refined description of the neutron skin and of the energy density in the nuclear surface is crucial for the aforementioned observables, and that neither ingredient is sufficient if taken separately. As a by-product, the predictions for removal of several nucleons are also improved by the refined treatment.

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Rescattering in knockout reactions as manifested in40Ca(p,p′p″

Cited by 29 publications

References 21 publications

Improvement of one-nucleon removal and total reaction cross sections in the Liège intranuclear-cascade model using Hartree-Fock-Bogoliubov calculations

Improvement of one-nucleon removal and total reaction cross sections in the Liège intranuclear-cascade model using Hartree-Fock-Bogoliubov calculations

Infrared spectroscopy of low-mass X-ray binaries - II

Improving the description of proton-induced one-nucleon removal in intranuclear-cascade models

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