Spectroscopy of high-lying resonances in 9Be by the measurement of (p, p), (p, d), and (p, α) reactions with a radioactive 8Li beam

被引：13

作者：

Leistenschneider, E. ^{[1
,2
]}

Lepine-Szily, A. ^{[1
]}

Alvarez, M. A. G. ^{[1
,3
]}

Mendes Jr, D. R. ^{[4
]}

Lichtenthaler, R. ^{[1
]}

Aguiar, V. A. P. ^{[1
]}

Assuncao, M. ^{[5
]}

Condori, R. Pampa ^{[1
]}

da Silva, U. U. ^{[1
]}

de Faria, P. N. ^{[4
]}

Deshmukh, N. ^{[1
,6
]}

Duarte, J. G. ^{[1
,7
]}

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

Guimaraes, V ^{[1
]}

Macchione, E. L. A. ^{[1
]}

Morais, M. C. ^{[8
]}

Morcelle, V ^{[9
]}

Pires, K. C. C. ^{[1
]}

Scarduelli, V. B. ^{[1
]}

Scotton, G. ^{[1
]}

Shorto, J. M. B. ^{[10
]}

Zagatto, V. A. B. ^{[1
,4
]}

机构：

[1] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, SP, Brazil

[2] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[3] Univ Seville, Dept FAMN, Apdo 1065, E-41080 Seville, Spain

[4] Univ Fed Fluminense, Inst Fis, BR-24210340 Niteroi, RJ, Brazil

[5] Univ Fed Sao Paulo, Dept Fis, Campus Diadema, Sao Paulo, Brazil

[6] Ist Nazl Fis Nucl, Lab Nazl Sud, Via Santa Sofia 62, I-95123 Catania, CT, Italy

[7] Univ Campania Luigi Vanvitelli, Dipartimento Matemat & Fis, Viale Lincoln, I-81100 Caserta, Italy

[8] Univ Fed Fluminense, Inst Noroeste Fluminense Ensino Super, BR-28470000 Santo Antonio De Padua, RJ, Brazil

[9] Univ Fed Rural Rio de Janeiro, Rio De Janeiro, RJ, Brazil

[10] IPEN, Sao Paulo, SP, Brazil

来源：

PHYSICAL REVIEW C | 2018年 / 98卷 / 06期

基金：

巴西圣保罗研究基金会;

关键词：

ELASTIC-SCATTERING; CROSS-SECTION; FACILITY; NUCLEI; RIBRAS; LIGHT;

D O I：

10.1103/PhysRevC.98.064601

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：

We measured the Li-8(p, p)Li-8, Li-8(p, d)Li-7, and( 8 )Li(p, alpha)(5) He reactions at low energies using the thick target inverse kinematics method, with a polyethylene [CH2](n) target and a radioactive Li-8 beam available at the Radioactive Ion Beams in Brazil facility of S (a) over tildeo Paulo. By measuring simultaneously several reaction channels (p, p), (p, d), and (p, alpha), the still uncertain high-lying resonances of Be-9, close to the proton threshold, can be studied and their parameters, such as energy, width, and spin parity can be more reliably determined. The experimental excitation functions of the reactions Li-8(p, p)Li-8, Li-8(p, d)Li-7, and Li-8(p, alpha)(5) He were analyzed using the R-matrix theory, which allows us to infer the properties of the resonances. Multichannel R-matrix analysis provides evidence for a significant clustering in the (p, d) channel. The experimental data and the multichannel R-matrix analysis will be presented.

引用

页数：13

共 37 条

[1] Elastic scattering and total reaction cross sections for the 8Li+12C system [J].

Barioni, A. ;

Guimaraes, V. ;

Lepine-Szily, A. ;

Lichtenthaeler, R. ;

Mendes, D. R., Jr. ;

Crema, E. ;

Pires, K. C. C. ;

Morais, M. C. ;

Morcelle, V. ;

de Faria, P. N. ;

Condori, R. P. ;

Moro, A. M. ;

Monteiro, D. S. ;

Shorto, J. M. B. ;

Lubian, J. ;

Assuncao, M. .

PHYSICAL REVIEW C, 2009, 80 (03)

[2] ELASTIC SCATTERING OF 2-11 MEV PROTONS BY HE4 [J].

BARNARD, ACL ;

WEIL, JL ;

JONES, CM .

NUCLEAR PHYSICS, 1964, 50 (04) :604-&

[3] LI7(D,P)LI8 YIELD CURVE [J].

BASHKIN, S .

PHYSICAL REVIEW, 1954, 95 (04) :1012-1015

[4] Elastic scattering and total reaction cross section for the 6He+27Al system [J].

Benjamim, E. A. ;

Lepine-Szily, A. ;

Mendes, D. R., Jr. ;

Lichtenthaler, R. ;

Guimaraes, V. ;

Gomes, P. R. S. ;

Chamon, L. C. ;

Hussein, M. S. ;

Moro, A. M. ;

Arazi, A. ;

Padron, I. ;

Nunez, J. Alcantara ;

Assuncao, M. ;

Barioni, A. ;

Camargo, O., Jr. ;

Denke, R. Z. ;

de Faria, P. N. ;

Pires, K. C. C. .

PHYSICS LETTERS B, 2007, 647 (01) :30-35

[5] Nuclear astrophysics with radioactive beams [J].

Bertulani, C. A. ;

Gade, A. .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2010, 485 (06) :195-259

[6]

Brune CR, 2002, PHYS REV C, V66, DOI 10.1103/PhysRevC.66.044611

[7] α-particle production in 6He+120Sn collisions [J].

de Faria, P. N. ;

Lichtenthaeler, R. ;

Pires, K. C. C. ;

Moro, A. M. ;

Lepine-Szily, A. ;

Guimaraes, V. ;

Mendes, D. R., Jr. ;

Arazi, A. ;

Barioni, A. ;

Morcelle, V. ;

Morais, M. C. .

PHYSICAL REVIEW C, 2010, 82 (03)

[8] Elastic scattering and total reaction cross section of 6He+120Sn [J].

de Faria, P. N. ;

Lichtenthaler, R. ;

Pires, K. C. C. ;

Moro, A. M. ;

Lepine-Szily, A. ;

Guimaraes, V. ;

Mendes, D. R., Jr. ;

Arazi, A. ;

Rodriguez-Gallardo, M. ;

Barioni, A. ;

Morcelle, V. ;

Morais, M. C. ;

Camargo, O., Jr. ;

Nunez, J. Alcantara ;

Assuncao, M. .

PHYSICAL REVIEW C, 2010, 81 (04)

[9] Faddeev-type calculation of three-body nuclear reactions including core excitation [J].

Deltuva, A. .

PHYSICAL REVIEW C, 2013, 88 (01)

[10] The R-matrix theory [J].

Descouvemont, P. ;

Baye, D. .

REPORTS ON PROGRESS IN PHYSICS, 2010, 73 (03)

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