Differential and total cross sections of noncapture breakup reactions in the 6Li+144Sm system

被引：12

作者：

Martinez Heimann, D. ^{[1
,2
]}

Pacheco, A. J. ^{[1
,2
]}

Capurro, O. A. ^{[1
]}

Arazi, A. ^{[1
,2
]}

Balpardo, C. ^{[1
]}

Cardona, M. A. ^{[1
,2
,3
]}

Carnelli, P. F. F. ^{[1
,2
,3
]}

de Barbara, E. ^{[1
]}

Fernandez Niello, J. O. ^{[1
,2
,3
]}

Figueira, J. M. ^{[1
,2
]}

Hojman, D. ^{[1
,2
]}

Marti, G. V. ^{[1
]}

Negri, A. E. ^{[1
,2
]}

Rodrigues, D. ^{[1
,2
]}

机构：

[1] Comis Nacl Energia Atom, Dept Fis, TANDAR, San Martin, Argentina

[2] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina

[3] Univ Nacl Gen San Martin, San Martin, Argentina

来源：

PHYSICAL REVIEW C | 2014年 / 89卷 / 01期

关键词：

COULOMB BREAKUP; FUSION; LI-7; BARRIER; PROJECTILE; MECHANISMS;

D O I：

10.1103/PhysRevC.89.014615

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 breakup of the projectile-like fragments in reactions induced by Li-6 beams on a Sm-144 target at energies close to the Coulomb barrier has been measured through the coincident detection of the emitted light particles. The emphasis of the measurements and the data analysis were placed in the complete characterization of the alpha-deuteron breakup mode by means of the identification of the breakup fragments and the determination of the total Q value, relative energy of the breakup products, and the angular distribution of their emission. Within the ranges of these variables covered by the present measurements, the results for the Li-6 -> d+alpha mode show a clear dominance of the resonant channel through the 3(+) state at 2.186 MeV over other resonant and nonresonant channels. Differential cross sections as a function of the center-of-mass angles of the intermediate binary collision and of the breakup emission, as well as integrated cross sections as a function of energy, have been obtained. The data are compared with those measured for competing processes in the same system and with the results of calculations based on a dynamic classical model that describes noncapture breakup, incomplete fusion, and complete fusion.

引用

页数：14

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