Direct pickup and knockout processes in inclusive<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mo>(</mml:mo><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mi>d</mml:mi><mml:mi>x</mml:mi></mml:mrow></mml:math>) reactions at 42–392 MeV

Uozumi, Yusuke; Yamaguchi, Yuji; Watanabe, Gaku; Fukuda, Yuki; Imamura, Ryota; Kobra, Monira Jannatul; Nakano, Masahiro

doi:10.1103/physrevc.97.034630

Cited by 10 publications

(5 citation statements)

References 38 publications

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“…The triton pickup process for (p, α) reactions is described in a similar way to that for the (p, d ) reaction [21]. We assume that the residual nucleus is in a (ν −2 , π −1 ) state.…”

Section: Direct Pickup Of Tritonmentioning

confidence: 99%

“…The knockout calculation is in principle the same as that in Refs. [21,26], which assumes the existence of an α particle in the target nucleus. A preformed α particle is prepared at the nuclear surface before the proton-α collision.…”

Section: Knockout Of α Particlementioning

confidence: 99%

“…A representative example is the inclusive (p, dx) reactions; see Ref. [21] and the references therein. Many experimental studies have been conducted to explore the deuteron production mechanism by systematically measuring the energy spectra of double-differential cross sections (DDXs).…”

Section: Introductionmentioning

confidence: 99%

“…In our recent study [21], we explained the continua of (p, dx) reactions by means of a theoretical model that was developed based on the intranuclear cascade (INC) model. This INC-based model involves pickup, knockout, and indirect pickup and was applied to inclusive (p, dx) reactions at incident energies of 40-400 MeV.…”

Section: Introductionmentioning

confidence: 99%

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Direct pickup and knockout processes in inclusive (p,αx) reactions from 42 to 300 MeV

et al. 2020

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Inclusive (p, αx) reactions from 42 to 300 MeV are investigated to quantitatively understand the roles of direct pickup and knockout processes. These two processes as well as indirect pickup are incorporated into the intranuclear cascade model. Calculations followed by the evaporation model successfully explain the double-differential cross-section spectra in terms of both shape and magnitude. Direct pickup occupies the low excitation energies of the spectra, and knockout appears between the direct pickup and evaporation regions. The contribution of knockout is negligible below 100 MeV, increases to be comparable with that of direct pickup at 160 MeV, and is dominant above 200 MeV. Indirect pickup shows an important contribution at 300 MeV. The direct pickup and knockout processes show decreasing trends of incident-energy dependence, common to targets ranging from 12 C to 209 Bi. However, the decrease of direct pickup is much faster than that for knockout.

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Section: Direct Pickup Of Tritonmentioning

confidence: 99%

Section: Knockout Of α Particlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Direct pickup and knockout processes in inclusive (p,αx) reactions from 42 to 300 MeV

et al. 2020

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“…The Coulomb barrier, however, cannot affect the neutron. (p,p'x), (p,dx), (p,αx) in very wide energies and angles [18][19][20][21]. On the other hand, the INC model has not been applied to neutron induced reactions in the low energies.…”

Section: Introductionmentioning

confidence: 99%

Extension of the intranuclear cascade model to neutron-induced nonelastic cross sections in the low-energy region

Nakano

Uozumi²

2019

Phys. Rev. C

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Two features, a slow slope and a sharp drop, in neutron induced total nonelastic cross-sections are analyzed within the framework of an intra-nuclear cascade (INC) model. First, to reproduce the slow slope from 100MeV to 10 MeV, the original INC is generalized in two points; a method to construct the ground state of the target nucleus, and a method of taking the effective two body cross-sections between two nucleons. Secondly, to analyze the origin of the sharp drop from 10MeV to nearly 1 MeV, the INC is extended to include quantum effects which are originated from the existence of the discrete states in the nuclear potential. It is shown that this extension leads to the sharp drops in the very low energy below around 10MeV. It is concluded that the INC model can be extended to explain the sharp drops in addition to the slow slope in neutron induced nonelastic cross-sections in the energy region from 100MeV down to 1 MeV.

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Development of INC-ELF version 2 and incorporation into PHITS: Extension to lower incident energies down to 30 MeV

Yamaguchi

Watanabe

Fukuda

et al. 2020

Nuclear Instruments and Methods in Physics Research Section B:

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Direct pickup and knockout processes in inclusive(p,dx) reactions at 42–392 MeV

Cited by 10 publications

References 38 publications

Direct pickup and knockout processes in inclusive (p,αx) reactions from 42 to 300 MeV

Direct pickup and knockout processes in inclusive (p,αx) reactions from 42 to 300 MeV

Extension of the intranuclear cascade model to neutron-induced nonelastic cross sections in the low-energy region

Development of INC-ELF version 2 and incorporation into PHITS: Extension to lower incident energies down to 30 MeV

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