Fusion of the positive Q-value system 36S+48Ca well below the Coulomb barrier

被引：89

作者：

Stefanini, A. M. ^{[1
]}

Montagnoli, G. ^{[2
,3
]}

Silvestri, R. ^{[1
]}

Beghini, S. ^{[2
,3
]}

Corradi, L. ^{[1
]}

Courtin, S. ^{[7
]}

Fioretto, E. ^{[1
]}

Guiot, B. ^{[1
]}

Haas, F. ^{[7
]}

Lebhertz, D. ^{[7
]}

Marginean, N. ^{[6
]}

Mason, P. ^{[2
,3
]}

Scarlassara, F. ^{[2
,3
]}

Sagaidak, R. N. ^{[5
]}

Szilner, S. ^{[4
]}

机构：

[1] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Padua, Italy

[2] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy

[3] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[4] Rudjer Boskovic Inst, HR-10002 Zagreb, Croatia

[5] Joint Inst Nucl Res Dubna, Flerov Lab Nucl React, Dubna, Russia

[6] Horia Hulubei Natl Inst, Bucharest, Romania

[7] Univ Strasbourg, CNRS, IN2P3, IPHC, F-67037 Strasbourg 2, France

来源：

PHYSICAL REVIEW C | 2008年 / 78卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.78.044607

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The fusion excitation function of S-36+Ca-48 has been measured from well above the barrier down to very small cross sections at sub-barrier energies. A steady decrease of the fusion cross sections is observed below the barrier with no pronounced change of slope. The logarithmic derivative saturates and does not reach the value expected for a constant astrophysical S-factor. The S-factor does not show any maximum in the measured energy range. Coupled-channels calculations using a Woods-Saxon potential have been performed.

引用

页数：5

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