Evidence of double phonon excitations in the fusion of 16O + 208Pb

M. Dasgupta; K. Hagino; C. R. Morton; D. J. Hinde; J. R. Leigh; N. Takigawa; H. Timmers; J. O. Newton

doi:10.1088/0954-3899/23/10/041

Evidence of double phonon excitations in the fusion of ¹⁶O + ²⁰⁸Pb

M. Dasgupta, K. Hagino, C. R. Morton, D. J. Hinde, J. R. Leigh, N. Takigawa, H. Timmers, J. O. Newton

SCI - Physics

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

14 Citations (Scopus)

Abstract

The fusion cross-sections for ¹⁶O+ ²⁰⁸Pb, measured to high precision, enable the extraction of the distribution of fusion barriers. This shows a structure markedly different from the single barrier which might be expected for fusion of two doubly-closed shell nuclei. The results of exact coupled-channel calculations performed to understand the observations are presented. These calculations indicate that coupling to a double octupole phonon excited state in ²⁰⁸Pb is necessary to explain the experimental barrier distributions.

Original language	English
Pages (from-to)	1491-1496
Number of pages	6
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	23
Issue number	10
DOIs	https://doi.org/10.1088/0954-3899/23/10/041
Publication status	Published - 1997 Oct

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1088/0954-3899/23/10/041

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abstract = "The fusion cross-sections for 16O+ 208Pb, measured to high precision, enable the extraction of the distribution of fusion barriers. This shows a structure markedly different from the single barrier which might be expected for fusion of two doubly-closed shell nuclei. The results of exact coupled-channel calculations performed to understand the observations are presented. These calculations indicate that coupling to a double octupole phonon excited state in 208Pb is necessary to explain the experimental barrier distributions.",

author = "M. Dasgupta and K. Hagino and Morton, {C. R.} and Hinde, {D. J.} and Leigh, {J. R.} and N. Takigawa and H. Timmers and Newton, {J. O.}",

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T1 - Evidence of double phonon excitations in the fusion of 16O + 208Pb

AU - Dasgupta, M.

AU - Hagino, K.

AU - Morton, C. R.

AU - Hinde, D. J.

AU - Leigh, J. R.

AU - Takigawa, N.

AU - Timmers, H.

AU - Newton, J. O.

PY - 1997/10

Y1 - 1997/10

N2 - The fusion cross-sections for 16O+ 208Pb, measured to high precision, enable the extraction of the distribution of fusion barriers. This shows a structure markedly different from the single barrier which might be expected for fusion of two doubly-closed shell nuclei. The results of exact coupled-channel calculations performed to understand the observations are presented. These calculations indicate that coupling to a double octupole phonon excited state in 208Pb is necessary to explain the experimental barrier distributions.

AB - The fusion cross-sections for 16O+ 208Pb, measured to high precision, enable the extraction of the distribution of fusion barriers. This shows a structure markedly different from the single barrier which might be expected for fusion of two doubly-closed shell nuclei. The results of exact coupled-channel calculations performed to understand the observations are presented. These calculations indicate that coupling to a double octupole phonon excited state in 208Pb is necessary to explain the experimental barrier distributions.

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JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

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Evidence of double phonon excitations in the fusion of ¹⁶O + ²⁰⁸Pb

Abstract

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