### Abstract

A new method of pseudostate discretization is proposed for the method of continuum discretized coupled channels to deal with three-body breakup processes. In the method, discrete S-matrix elements to the pseudo (discretized) continuum states are transformed into smooth ones to the exact continuum states of the projectile. As for the basis functions for describing pseudostate wave functions, we take real- and complex-range Gaussian functions, which form in good approximation a complete set in a finite configuration space being important for breakup processes. This "approximate-completeness" property is essential to make transformed S-matrix elements accurate. Moreover, the use of these Gaussian bases is expected to be very useful to describe four-body breakup processes. Accuracy of the method is tested quantitatively for two realistic examples: elastic and projectile-breakup processes in d+ ^{58}Ni scattering at 80 MeV and those in ^{6}Li+ ^{40}Ca at 156 MeV.

Original language | English |
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Pages (from-to) | 646071-6460710 |

Number of pages | 5814640 |

Journal | Physical Review C - Nuclear Physics |

Volume | 68 |

Issue number | 6 |

Publication status | Published - Dec 1 2003 |

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### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics

### Cite this

*Physical Review C - Nuclear Physics*,

*68*(6), 646071-6460710.

**New treatment of breakup continuum in the method of continuum discretized coupled channels.** / Matsumoto, T.; Kamizato, T.; Ogata, K.; Iseri, Y.; Hiyama, E.; Kamimura, M.; Yahiro, M.

Research output: Contribution to journal › Article

*Physical Review C - Nuclear Physics*, vol. 68, no. 6, pp. 646071-6460710.

}

TY - JOUR

T1 - New treatment of breakup continuum in the method of continuum discretized coupled channels

AU - Matsumoto, T.

AU - Kamizato, T.

AU - Ogata, K.

AU - Iseri, Y.

AU - Hiyama, E.

AU - Kamimura, M.

AU - Yahiro, M.

PY - 2003/12/1

Y1 - 2003/12/1

N2 - A new method of pseudostate discretization is proposed for the method of continuum discretized coupled channels to deal with three-body breakup processes. In the method, discrete S-matrix elements to the pseudo (discretized) continuum states are transformed into smooth ones to the exact continuum states of the projectile. As for the basis functions for describing pseudostate wave functions, we take real- and complex-range Gaussian functions, which form in good approximation a complete set in a finite configuration space being important for breakup processes. This "approximate-completeness" property is essential to make transformed S-matrix elements accurate. Moreover, the use of these Gaussian bases is expected to be very useful to describe four-body breakup processes. Accuracy of the method is tested quantitatively for two realistic examples: elastic and projectile-breakup processes in d+ 58Ni scattering at 80 MeV and those in 6Li+ 40Ca at 156 MeV.

AB - A new method of pseudostate discretization is proposed for the method of continuum discretized coupled channels to deal with three-body breakup processes. In the method, discrete S-matrix elements to the pseudo (discretized) continuum states are transformed into smooth ones to the exact continuum states of the projectile. As for the basis functions for describing pseudostate wave functions, we take real- and complex-range Gaussian functions, which form in good approximation a complete set in a finite configuration space being important for breakup processes. This "approximate-completeness" property is essential to make transformed S-matrix elements accurate. Moreover, the use of these Gaussian bases is expected to be very useful to describe four-body breakup processes. Accuracy of the method is tested quantitatively for two realistic examples: elastic and projectile-breakup processes in d+ 58Ni scattering at 80 MeV and those in 6Li+ 40Ca at 156 MeV.

UR - http://www.scopus.com/inward/record.url?scp=4444284197&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4444284197&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:4444284197

VL - 68

SP - 646071

EP - 6460710

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 6

ER -