An extra push from entrance-channel effects

N. Rowley; N. Grar; K. Hagino

doi:10.1016/j.physletb.2005.10.059

An extra push from entrance-channel effects

N. Rowley, N. Grar, K. Hagino

SCI - Physics

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Symmetric heavy-ion collisions are known to display an 'extra-push' effect. That is, the energy at which the s-wave transmission is 0.5 lies significantly higher than the nominal Coulomb barrier. Despite this, however, the capture cross section is still greatly enhanced below the uncoupled barrier. It is shown that this phenomenon can be simply explained in terms of entrance-channel effects which account for long-range Coulomb excitations.

Original language	English
Pages (from-to)	243-246
Number of pages	4
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	632
Issue number	2-3
DOIs	https://doi.org/10.1016/j.physletb.2005.10.059
Publication status	Published - 2006 Jan 12

Keywords

Coulomb barrier distribution
Coulomb excitation
Coupled channels
Extra push
Fusion and fusion-fission reactions

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2005.10.059

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AU - Grar, N.

AU - Hagino, K.

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N2 - Symmetric heavy-ion collisions are known to display an 'extra-push' effect. That is, the energy at which the s-wave transmission is 0.5 lies significantly higher than the nominal Coulomb barrier. Despite this, however, the capture cross section is still greatly enhanced below the uncoupled barrier. It is shown that this phenomenon can be simply explained in terms of entrance-channel effects which account for long-range Coulomb excitations.

AB - Symmetric heavy-ion collisions are known to display an 'extra-push' effect. That is, the energy at which the s-wave transmission is 0.5 lies significantly higher than the nominal Coulomb barrier. Despite this, however, the capture cross section is still greatly enhanced below the uncoupled barrier. It is shown that this phenomenon can be simply explained in terms of entrance-channel effects which account for long-range Coulomb excitations.

KW - Coulomb barrier distribution

KW - Coulomb excitation

KW - Coupled channels

KW - Extra push

KW - Fusion and fusion-fission reactions

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

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