Two-neutron transfer in the 6He + 120Sn reaction

被引：17

作者：

Appannababu, S. ^{[1
,8
]}

Lichtenthaler, R. ^{[1
]}

Alvarez, M. A. G. ^{[2
]}

Rodriguez-Gallardo, M. ^{[2
]}

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

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

Santos, O. C. B. ^{[1
]}

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

de Faria, P. N. ^{[3
]}

Guimaraes, V ^{[1
]}

Zevallos, E. O. N. ^{[1
]}

Scarduelli, V ^{[1
]}

Assuncao, M. ^{[4
]}

Shorto, J. M. B. ^{[5
]}

Barioni, A. ^{[6
]}

Alcantara-Nunez, J. ^{[1
]}

Morcelle, V ^{[7
]}

机构：

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

[2] Univ Seville, Dept FAMN, Apartamento 1065, E-41080 Seville, Spain

[3] Univ Fed Fluminense Rio de Janeiro, Dept Fis, BR-24210310 Rio De Janeiro, Brazil

[4] Univ Fed Sao Paulo, UNIFESP, Dept Fis, BR-09913030 Diadema, Brazil

[5] IPEN, BR-05508000 Sao Paulo, Brazil

[6] Univ Fed Sao Paulo, UNIFESP, Dept Ciencias Mar, Sao Paulo, Brazil

[7] Univ Fed Rural Rio de Janeiro, Dept Fis, BR-23851970 Rio De Janeiro, Brazil

[8] Andhra Univ, Dept Nucl Phys, Visakhapatnam 530003, Andhra Pradesh, India

来源：

PHYSICAL REVIEW C | 2019年 / 99卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1103/PhysRevC.99.014601

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：

A large yield of a particles produced in the Sn-120(He-6, alpha) reaction was measured at 20.3-, 22.2-, 22.4-, and 24.5-MeV bombarding energies. The alpha particles are distributed over a broad energy range in the vicinity and below the elastic scattering He-6 peak. Energy integrated alpha-particle cross sections have been obtained at theta(lab) = 36 degrees, 40 degrees, and 60 degrees. The alpha energy distributions have been analyzed at a fixed laboratory angle (approximate to 60 degrees) in terms of , the reaction Q value, considering the 2n-transfer reaction kinematics Sn-120(He-6, alpha)Sn-122. A kinematical analysis of the Q-value distribution shows that the recoil system Sn-120 + 2n is formed in highly excited states in the continuum, at increasing excitation energies as the bombarding energy increases. It is shown that by using Brink's formula, the excitation energy depends on the transferred angular momentum following a linear relation with the square of the angular momentum, indicating that some kind of dinuclear rotating system is formed after the reaction.

引用

页数：7

共 33 条

[1] Reaction cross sections for 8B, 7Be, and 6Li+58Ni near the Coulomb barrier: Proton-halo effects
Aguilera, E. F.
Martinez-Quiroz, E.
Lizcano, D.
Gomez-Camacho, A.
Kolata, J. J.
Lamm, L. O.
Guimaraes, V.
Lichtenthaler, R.
Camargo, O.
Becchetti, F. D.
Jiang, H.
DeYoung, P. A.
Mears, P. J.
Belyaeva, T. L.
[J]. PHYSICAL REVIEW C, 2009, 79 (02):
[2] Transfer and/or breakup modes in the 6He+209Bi reaction near the Coulomb barrier
Aguilera, EF
Kolata, JJ
Nunes, FM
Becchetti, FD
DeYoung, PA
Goupell, M
Guimaraes, V
Hughey, B
Lee, MY
Lizcano, D
Martinez-Quiroz, E
Nowlin, A
O'Donnell, TW
Peaslee, GF
Peterson, D
Santi, P
White-Stevens, R
[J]. PHYSICAL REVIEW LETTERS, 2000, 84 (22) : 5058 - 5061
[3] KINEMATICAL EFFECTS IN HEAVY-ION REACTIONS
BRINK, DM
[J]. PHYSICS LETTERS B, 1972, B 40 (01) : 37 - &
[4] 209Bi(6He, α) reaction mechanisms studied near the Coulomb barrier using n-α coincidence measurements
Bychowski, JP
DeYoung, PA
Hilldore, BB
Hinnefeld, JD
Vida, A
Becchetti, FD
Lupton, J
O'Donnell, TW
Kolata, JJ
Rogachev, G
Hencheck, M
[J]. PHYSICS LETTERS B, 2004, 596 (1-2) : 26 - 31
[5] 1n and 2n transfer with the borromean nucleus 6He near the Coulomb barrier
Chatterjee, A.
Navin, A.
Shrivastava, A.
Bhattacharyya, S.
Rejmund, M.
Keeley, N.
Nanal, V.
Nyberg, J.
Pillay, R. G.
Ramachandran, K.
Stefan, I.
Bazin, D.
Beaumel, D.
Blumenfeld, Y.
de France, G.
Gupta, D.
Labiche, M.
Lemasson, A.
Lemmon, R.
Raabe, R.
Scarpaci, J. A.
Simenel, C.
Timis, C.
[J]. PHYSICAL REVIEW LETTERS, 2008, 101 (03)
[6] Do Halo Nuclei Follow Rutherford Elastic Scattering at Energies Below the Barrier? The Case of 11Li
Cubero, M.
Fernandez-Garcia, J. P.
Rodriguez-Gallardo, M.
Acosta, L.
Alcorta, M.
Alvarez, M. A. G.
Borge, M. J. G.
Buchmann, L.
Diget, C. A.
Al Falou, H.
Fulton, B. R.
Fynbo, H. O. U.
Galaviz, D.
Gomez-Camacho, J.
Kanungo, R.
Lay, J. A.
Madurga, M.
Martel, I.
Moro, A. M.
Mukha, I.
Nilsson, T.
Sanchez-Benitez, A. M.
Shotter, A.
Tengblad, O.
Walden, P.
[J]. PHYSICAL REVIEW LETTERS, 2012, 109 (26)
[7] α-particle production in 6He+120Sn collisions
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.
[J]. PHYSICAL REVIEW C, 2010, 82 (03):
[8] Elastic scattering and total reaction cross section of 6He+120Sn
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.
[J]. PHYSICAL REVIEW C, 2010, 81 (04):
[9] Two-neutron transfer in the 6He+209Bi reaction near the Coulomb barrier -: art. no. 051601
DeYoung, PA
Mears, PJ
Kolata, JJ
Aguilera, EF
Becchetti, FD
Chen, Y
Cloughesy, M
Griffin, H
Guess, C
Hinnefeld, JD
Jiang, H
Jones, SR
Khadka, U
Lizcano, D
Martinez-Quiroz, E
Ojaniega, M
Peaslee, GF
Pena, A
Rieth, J
VanDenDriessche, S
Zimmerman, JA
[J]. PHYSICAL REVIEW C, 2005, 71 (05):
[10] Elastic Scattering and Reaction Mechanisms of the Halo Nucleus 11Be around the Coulomb Barrier
Di Pietro, A.
Randisi, G.
Scuderi, V.
Acosta, L.
Amorini, F.
Borge, M. J. G.
Figuera, P.
Fisichella, M.
Fraile, L. M.
Gomez-Camacho, J.
Jeppesen, H.
Lattuada, M.
Martel, I.
Milin, M.
Musumarra, A.
Papa, M.
Pellegriti, M. G.
Perez-Bernal, F.
Raabe, R.
Rizzo, F.
Santonocito, D.
Scalia, G.
Tengblad, O.
Torresi, D.
Maira Vidal, A.
Voulot, D.
Wenander, F.
Zadro, M.
[J]. PHYSICAL REVIEW LETTERS, 2010, 105 (02)

← 1 2 3 4 →