Direct measurements of the 12C+12C reactions cross-sections towards astrophysical energies

被引：0

作者：

Morales-Gallegos, L. ^{[1
,2
,3
]}

Aliotta, M. ^{[1
,2
]}

Gialanella, L. ^{[1
,3
]}

Best, A. ^{[3
,5
]}

Bruno, C. G. ^{[2
]}

Buompane, R. ^{[1
,3
]}

Davinson, T. ^{[2
]}

De Cesare, M. ^{[3
,4
]}

Di Leva, A. ^{[3
,5
]}

D'Onofrio, A. ^{[1
,3
]}

Duarte, J. G. ^{[1
,3
,7
]}

Gasques, L. R. ^{[1
,3
,6
]}

Imbriani, G. ^{[3
,5
]}

Porzio, G. ^{[1
]}

Rapagnani, D. ^{[1
,3
]}

Romoli, M. ^{[3
]}

Terrasi, F. ^{[1
,3
]}

机构：

[1] Univ Campania Luigi Vanvitelli, Dipartimento Matemat & Fis, Caserta, Italy

[2] Univ Edinburgh, Sch Phys & Astron, SUPA, Edinburgh, Scotland

[3] INFN, Sez Napoli, Naples, Italy

[4] Ctr Italiano Ric Aerospaziali, Capua, Italy

[5] Univ Napoli Federico II, Dipartimento Fis E Pancini, Naples, Italy

[6] Univ Sao Paulo, Dept Fis Nucl, Inst Fis, Sao Paulo, Brazil

[7] Lawrence Livermore Natl Lab, Nucl & Particle Phys Grp, Livermore, CA 94550 USA

来源：

EUROPEAN PHYSICAL JOURNAL A | 2024年 / 60卷 / 01期

关键词：

C-12; RAY;

D O I：

10.1140/epja/s10050-024-01233-6

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：

Carbon fusion reactions C-12(C-12,p)Na-23 and C-12(C-12,alpha)Ne-20 play a key role in the evolution of massive stars and in explosive scenarios such as type-Ia supernovae and super-bursts in binary stars. A direct determination of their cross sections is extremely challenging and discrepancies exist between different data sets in the literature. Here we report the results of a direct measurement performed at the CIRCE Tandem Accelerator Laboratory in Caserta (Italy), using Delta E-E detectors for unambiguous charge identification. Cross sections were measured in the energy range E-c.m.=2.51-4.36 MeV with energy steps between 10 and 25 keV in the centre of mass. To our knowledge these represent the finest energy steps to date. Results are presented in the form of partial and summed astrophysical S-similar to-factors for individual proton- and alpha-particle channels. Branching ratios of individual proton- and alpha-particle groups were found to vary significantly with energy. Angular distributions, albeit limited to three angles, were also found to be non-isotropic, which could be a potential explanation for the discrepancies observed among different data sets. Further efforts are ongoing to extend measurements to lower energies.

引用

页数：11

共 50 条

[11] Constraining the 12C+12C astrophysical S-factors with the 12C+13C measurements at very low energies
Zhang, N. T.
Wang, X. Y.
Tudor, D.
Bucher, B.
Burducea, I.
Chen, H.
Chen, Z. J.
Chesneanu, D.
Chilug, A. I.
Gasques, L. R.
Ghita, D. G.
Gomoiu, C.
Hagino, K.
Kubono, S.
Li, Y. J.
Lin, C. J.
Lin, W. P.
Margineanu, R.
Pantelica, A.
Stefanescu, I. C.
Straticiuc, M.
Tang, X. D.
Trache, L.
Umar, A. S.
Xin, W. Y.
Xu, S. W.
Xu, Y.
PHYSICS LETTERS B, 2020, 801
[12] Cross section measurements in the 12C+12C system
Courtin, S.
Jiang, C. L.
Fruet, G.
Heine, M.
Jenkins, D. G.
Adsley, P.
Morris, L. G.
Regan, P. H.
Rudigier, M.
Montanari, D.
Della Negra, S.
de Sereville, N.
Haas, F.
Hammache, F.
Kirsebom, O. S.
Lesrel, J.
Meyer, A.
Montanari, D.
Auranen, K.
Avila, M. L.
Ayangeakaa, A. D.
Back, B. B.
Bottoni, S.
Carpenter, M.
Dickerson, C.
DiGiovine, B.
Greene, J. P.
Henderson, D. J.
Hoffman, C. R.
Janssens, R. V. F.
Kay, B. P.
Kuvin, S. A.
Lauritsen, T.
Pardo, R. C.
Rehm, K. E.
Santiago-Gonzalez, D.
Sethi, J.
Seweryniak, D.
Talwar, R.
Ugalde, C.
Zhu, S.
Deibel, C. M.
Marley, S. T.
Bourgin, D.
Stodel, C.
Lefebvre-Schuhl, A.
Almaraz-Calderon, S.
Fang, X.
Tang, X. D.
Alcorta, M.
NUCLEAR PHYSICS IN ASTROPHYSICS VIII (NPA8 2017), 2017, 165
[13] ENERGY-DEPENDENCE OF 12C+12C SINGLE-NEUTRON TRANSFER CROSS-SECTIONS
WINFIELD, JS
AUSTIN, SM
CRAWLEY, GM
DJALALI, C
OGILVIE, CA
SMITH, RJ
CHEN, ZP
TORRES, M
PHYSICS LETTERS B, 1988, 203 (04) : 345 - 348
[14] EXTRAPOLATION OF C-12+C-12 AND C-12+0-16 REACTION CROSS SECTIONS TO ASTROPHYSICAL ENERGIES
NAGORCKA, BN
SYMONS, GD
ZUK, WM
PATTERSON, JR
NATURE-PHYSICAL SCIENCE, 1971, 231 (18): : 17 - +
[15] REACTION CROSS-SECTIONS FOR C-12+C-12
KOLATA, JJ
FREEMAN, RM
HAAS, F
HEUSCH, B
GALLMANN, A
PHYSICAL REVIEW C, 1980, 21 (02): : 579 - 587
[16] REACTION CROSS-SECTIONS FOR C-12+C-12
KOLATA, JJ
FREEMAN, RM
HAAS, F
HEUSCH, B
GALLMANN, A
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1977, 22 (08): : 1010 - 1010
[17] Constraining the 12C+12C astrophysical S-factors with the 12C+13C measurements at very low energies (vol 801, 135170, 2020)
Zhang, N. T.
Wang, X. Y.
Tudor, D.
Bucher, B.
Burducea, I.
Chen, H.
Chen, Z. J.
Chesneanu, D.
Chilug, A. I.
Gasques, L. R.
Ghita, D. G.
Gomoiu, C.
Hagino, K.
Kubono, S.
Li, Y. J.
Lin, C. J.
Lin, W. P.
Margineanu, R.
Pantelica, A.
Stefanescu, I. C.
Straticiuc, M.
Tang, X. D.
Trache, L.
Umar, A. S.
Xin, W. Y.
Xu, S. W.
Xu, Y.
PHYSICS LETTERS B, 2020, 803
[18] Status on 12C+12C fusion at deep subbarrier energies: impact of resonances on astrophysical S* factors
Beck, C.
Mukhamedzhanov, A. M.
Tang, X.
EUROPEAN PHYSICAL JOURNAL A, 2020, 56 (03):
[19] MEASUREMENT OF CROSS-SECTIONS FOR C-12+C-14 REACTION AT SUBBARRIER ENERGIES
DASMAHAPATRA, B
CUJEC, B
NUCLEAR PHYSICS A, 1993, 565 (03) : 657 - 670
[20] 12C+12C reactions for Nuclear Astrophysics
Morales-Gallegos, Lizeth
Aliotta, Marialuisa
Best, Andreas
Bruno, Carlo G.
Buompane, Rafaelle
Davinson, Thomas
De Cesare, Mario
Di Leva, Antonino
D'Onofrio, Antonio
Duarte, Jeremias
Gasques, Leandro
Gialanella, Lucio
Imbriani, Gianluca
Porzio, Giuseppe
Rapagnani, David
Romoli, Mauro
Terrasi, Filippo
NUCLEAR PHYSICS IN ASTROPHYSICS - X, NPA-X 2022, 2023, 279

← 1 2 3 4 5 →