Evidence of a slight nuclear transparency in the alpha-nucleus systems

被引：9

作者：

Chamon, L. C. ^{[1
]}

Gasques, L. R. ^{[1
]}

Nobre, G. P. A. ^{[2
]}

Rossi, E. S., Jr. ^{[1
,3
]}

deBoer, R. J. ^{[4
]}

Seymour, C. ^{[4
]}

Wiescher, M. ^{[4
]}

Kiss, G. G. ^{[5
]}

机构：

[1] Univ Sao Paulo, Inst Fis, Dept Fis Nucl, BR-05315970 Sao Paulo, SP, Brazil

[2] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA

[3] Ctr Univ FIEO UNIFIEO, Osasco, SP, Brazil

[4] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[5] Inst Nucl Res ATOMKI, H-4001 Debrecen, Hungary

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2015年 / 42卷 / 05期

基金：

美国国家科学基金会; 巴西圣保罗研究基金会;

关键词：

nuclear reactions; elastic scattering; optical models; REACTION CROSS-SECTIONS; MEDIUM-WEIGHT NUCLEI; EXCITATION-FUNCTIONS; ELASTIC-SCATTERING; COULOMB BARRIER; INELASTIC-SCATTERING; MODEL POTENTIALS; LOW ENERGIES; ISOTOPES; PROBABILITY;

D O I：

10.1088/0954-3899/42/5/055102

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：

In earlier works, we proposed a model for the nuclear potential of the alpha + alpha and alpha + C-12 systems. This theoretical model successfully described data related to the elastic and inelastic scattering processes as well as resonances that correspond to the capture reaction channel. In the present work, we extend the same model to obtain bare nuclear potentials for several alpha-nucleus systems. We adopt this interaction to analyze fusion, elastic, and inelastic scattering data within the context of the coupled-channel formalism. Our results indicate that, for these systems, the absorption of flux of the elastic channel at internal distances of interaction is not complete. In addition, we present new experimental angular distributions for the 2(+) inelastic target excitation of alpha on Te-120,Te-130.

引用

页数：27

共 70 条

[21] TOTAL REACTION CROSS-SECTIONS OF DEFORMED-NUCLEI - STUDY OF U-233,U-238 AND ALPHA SYSTEMS [J].

FREIESLEBEN, H ;

HUIZENGA, JR .

NUCLEAR PHYSICS A, 1974, A224 (03) :503-516

[22] 92Mo(α,α)92Mo scattering, the 92Mo-α optical potential, and the 96Ru(γ,α)92Mo reaction rate at astrophysically relevant energies -: art. no. 065805 [J].

Fülöp, Z ;

Gyürky, G ;

Máté, Z ;

Somorjai, E ;

Zolnai, L ;

Galaviz, D ;

Babilon, M ;

Mohr, P ;

Zilges, A ;

Rauscher, T ;

Oberhummer, H ;

Staudt, G .

PHYSICAL REVIEW C, 2001, 64 (06) :658051-6580513

[23]

Fulop Z, 1996, Z PHYS A-HADRON NUCL, V355, P203, DOI 10.1007/BF02769685

[24] Elastic α scattering on 112Sn and 124Sn at astrophysically relevant energies -: art. no. 065802 [J].

Galaviz, D ;

Fülöp, Z ;

Gyürky, G ;

Máté, Z ;

Mohr, P ;

Rauscher, T ;

Somorjai, E ;

Zilges, A .

PHYSICAL REVIEW C, 2005, 71 (06)

[25] Experimental determination of the surface density for the 6He exotic nucleus -: art. no. 024602 [J].

Gasques, LR ;

Chamon, LC ;

Pereira, D ;

Guimaraes, V ;

Lépine-Szily, A ;

Alvarez, MAG ;

Rossi, ES ;

Silva, CP ;

Carlson, BV ;

Kolata, JJ ;

Lamm, L ;

Peterson, D ;

Santi, P ;

Vincent, S ;

De Young, PA ;

Peasley, G .

PHYSICAL REVIEW C, 2003, 67 (02)

[26] Relation between total cross sections from elastic scattering and α-induced reactions: The example of 64Zn [J].

Gyuerky, Gy ;

Mohr, P. ;

Fueloep, Zs ;

Halasz, Z. ;

Kiss, G. G. ;

Szuecs, T. ;

Somorjai, E. .

PHYSICAL REVIEW C, 2012, 86 (04)

[27] α-induced cross sections of 106Cd for the astrophysical p process [J].

Gyurky, Gy. ;

Kiss, G. G. ;

Elekes, Z. ;

Fulop, Zs. ;

Somorjai, E. ;

Palumbo, A. ;

Gorres, J. ;

Lee, H. Y. ;

Rapp, W. ;

Wiescher, M. ;

Ozkan, N. ;

Guray, R. T. ;

Efe, G. ;

Rauscher, T. .

PHYSICAL REVIEW C, 2006, 74 (02)

[28] Subbarrier Fusion Reactions and Many-Particle Quantum Tunneling [J].

Hagino, Kouichi ;

Takigawa, Noboru .

PROGRESS OF THEORETICAL PHYSICS, 2012, 128 (06) :1061-1106

[29] Investigation of α-induced reactions on 130Ba and 132Ba and their importance for the synthesis of heavy p nuclei [J].

Halasz, Z. ;

Gyuerky, Gy ;

Farkas, J. ;

Fueloep, Zs ;

Szuecs, T. ;

Somorjai, E. ;

Rauscher, T. .

PHYSICAL REVIEW C, 2012, 85 (02)

[30] EMPIRE: Nuclear reaction model code system for data evaluation [J].

Herman, M. ;

Capote, R. ;

Carlson, B. V. ;

Oblozinsky, P. ;

Sin, M. ;

Trkov, A. ;

Wienke, H. ;

Zerkin, V. .

NUCLEAR DATA SHEETS, 2007, 108 (12) :2655-2715

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