Application of the Trojan Horse Method to study neutron induced reactions: the 17O(n, α)14C reaction

被引：0
|
作者：
Gulino, M. [1 ,2 ]
Spitaleri, C. [1 ,3 ]
Tang, X. D. [4 ,5 ]
Guardo, G. L. [1 ,3 ]
Lamia, L. [1 ,3 ]
Cherubini, S. [1 ,3 ]
Bucher, B. [4 ,5 ]
Burjan, V. [6 ]
Couder, M. [4 ,5 ]
Davies, P. [4 ,5 ]
deBoer, R. [4 ,5 ]
Fang, X. [4 ,5 ]
Goldberg, V. Z. [7 ]
Hons, Z. [6 ]
Kroha, V. [6 ]
Lamm, L. [4 ,5 ]
La Cognata, M. [1 ]
Li, C. [8 ]
Ma, C. [4 ,5 ]
Mrazek, J. [6 ]
Mukhamedzhanov, A. M. [7 ]
Notani, M. [4 ,5 ]
O'Brien, S. [4 ,5 ]
Pizzone, R. G. [1 ]
Rapisarda, G. G. [1 ,3 ]
Roberson, D. [4 ,5 ]
Sergi, M. L. [1 ]
Tan, W. [4 ,5 ]
Thompson, I. J. [9 ]
Wiescher, M. [4 ,5 ]
机构：
[1] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95129 Catania, Italy
[2] Uni Enna KORE, Enna, Italy
[3] Univ Catania, Dipartimento Fis & Astron, Catania, Italy
[4] Univ Notre Dame, Dept Phys, Notre Dame, IN USA
[5] Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN USA
[6] ASCR, Inst Nucl Phys, Rez, Czech Republic
[7] Texas A&M Univ, Inst Cyclotron, College Stn, TX USA
[8] China Inst Atom Energy, Beijing, Peoples R China
[9] Lawrence Livermore Natl Lab, Livermore, CA USA
来源：
INPC 2013 - INTERNATIONAL NUCLEAR PHYSICS CONFERENCE, VOL. 2 | 2014年 / 66卷
关键词：
CROSS-SECTION; C-14;
D O I：
10.1051/epjconf/20146607008
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The reaction O-17( n,alpha)C-14 was studied using virtual neutrons coming from the quasi-free deuteron break-up in the three body reaction O-17+d -> alpha+C-14+p. This technique, called virtual neutron method, extends the Trojan Horse method to neutron-induced reactions allowing to study the reaction cross section avoiding the suppression effects coming from the penetrability of the centrifugal barrier. For incident neutron energies from thermal up to a few hundred keV, direct experiments have shown the population of two out of three expected excited states at energies 8213 keV and 8282 keV and the influence of the sub-threshold level at 8038 keV. In the present experiment the O-18 excited state at E* = 8.125 MeV, missing in the direct measurement, is observed. The angular distributions of the populated resonances have been measured for the first time. The results unambiguously indicate the ability of the method to overcome the centrifugal barrier suppression effect and to pick out the contribution of the bare nuclear interaction.
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页数：4
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