C. Bertulani
Department of Physics, Texas A & M University, Commerce, TX 75429, USA, e–mail: carlos_bertulani@tamu–commerce.edu
Recibido el 23 de febrero de 2008
Aceptado el 23 de abril de 2008
Abstract
]]> Accurate nuclear reaction rates are needed for primordial nucleosynthesis and hydrostatic burning in stars. The relevant reactions are extremely difficult to measure directly in the laboratory at the small astrophysical energies. In recent years direct reactions have been developed and applied to extract low–energy astrophysical S–factors. These methods require a combination of new experimental techniques and theoretical efforts, which are the subject of this presentation.Keywords: Direct reactions; reactions induced by unstable nuclei; nuclear astrophysics.
Resumen
Tasas precisas de reacciones nucleares son importantes para la síntesis nuclear primordial y la quema hidroestática en estrellas. Las reacciones relevantes son extremadamente difíciles para medir en el laboratorio para las energías de interés para la astrofísica. Recientemente se han desarrollado reacciones directas para determinar factores S astrofísicas a bajas energías. Estos métodos requieren una combinación de técnicas experimentales nuevas y cálculos teóricos, que se discuten a continuación en esta contribución.
Descriptores: Reacciones directas; reacciones inducidas por núcleos inestables; astrofísica nuclear.
PACS: 24.50.+g; 26; 25.60.–t
DESCARGAR ARTÍCULO EN FORMATO PDF
]]>Acknowledgments
This work was partially supported by the U.S. DOE grants DE–FG02–08ER41533 and DE–FC02–07ER41457 (UNEDF, SciDAC–2).
References
1. J.N. Bahcall, Neutrino Astrophysics (Cambridge: Cambridge University Press 1989) [ Links ]
2. S.E. Woosley, "Proceedings of the Accelerated Beam Workshop", Eds. L. Buchmann and J. D'Auria (TRIUMF, Canada, 1985). [ Links ]
3. H.J. Assenbaum, K. Langanke, and C. Rolfs, Z. Phys. A 327 (1987) 461. [ Links ]
4. C. Rolfs and E. Somorjai, Nucl. Inst. Meth. B 99 (1995) 297. [ Links ]
5. C. Rolfs, Prog. Part. Nucl. Phys. 46 (2001) 23. [ Links ]
6. A.B. Balantekin, C.A. Bertulani, and M.S. Hussein, Nucl. Phys. A 627 (1997) 324. [ Links ]
7. K. Langanke, T.D. Shoppa, C.A. Barnes, and C. Rolfs, Phys. Lett. B 369 (1996) 211. [ Links ]
8. J.M. Bang, L.S. Ferreira, E. Maglione, and J.M. Hansteen, Phys. Rev. C 53 (1996) R18. [ Links ]
9. H. Andersen and J.F. Ziegler, The Stopping and Ranges of Ions in Matter (Pergamon, NY, 1977). [ Links ]
10. C.A. Bertulani and D.T. de Paula, Phys. Rev.C 62 (2000) 045802. [ Links ]
11. R. Golser and D. Semrad, Phys. Rev. Lett. 14 (1991) 1831. [ Links ]
12. C.A. Bertulani, Phys. Lett. B 585 (2004) 35. [ Links ]
13. A. Formicola et al. Eur. Phys. J. A 8 (2000) 443. [ Links ]
14. S. Neumaier et al., Nucl. Phys. A 583 (1995) 799. [ Links ]
15. A.A. Korsheninnikov et al., Nucl. Phys. A 617 (1997). [ Links ]
16. N. Alamanos, F. Auger, B.A. Brown, and A. Pakou, J. Phys. G 24 (1998) 1541. [ Links ]
17. A. Bonaccorso, G. Picolo and D.M. Brink, Nucl. Phys. A 441 (1985) 555; [ Links ] G. Blanchon, A. Bonaccorso and N. Vinh Mau, Nucl. Phys. A 739 (2004) 259. [ Links ]
18. G. Baur, Phys. Lett. B 178 (1986) 135. [ Links ]
19. M. La Cognata et al., Phys. Rev. C 76 (2007) 065804. [ Links ]
20. A.M. Mukhamedzhanov and N.K. Timofeyuk, JETP Lett. 51 (1990) 282. [ Links ]
21. R.E. Tribble et al., Proceedings of Science (online at: http://pos.sissa.it/index.html), 2007. [ Links ]
22. K. Alder and A. Winther, Electromagnetic Excitation (North–Holland, Amsterdam, 1975). [ Links ]
23. A. Winther and K. Alder, Nucl. Phys. A 319 (1979) 518. [ Links ]
24. C.A. Bertulani and G. Baur, Phys. Rep. 163 (1988) 299. [ Links ]
25. C.A. Bertulani and A.M. Nathan, Nucl. Phys. A 554 (1993) 158. [ Links ]
26. T. Glasmacher, Nucl. Phys. A 693 (2001) 90. [ Links ]
27. C.A. Bertulani, A. Stuchbery, T. Mertzimekis and A. Davies, Phys. Rev.C 68 (2003) 044609; [ Links ] C.A. Bertulani, Phys. Rev. Lett. 94 (2005) 072701. [ Links ]
28. C.A. Bertulani, G. Cardella, M. De Napoli, G. Raciti, and E. Rapisarda, Phys. Lett. B 650 (2007) 233. [ Links ]
29. H. Scheit, A. Gade, T. Glasmacher and T. Motobayashi, Phys. Lett. B 659 (2008) 515. [ Links ]
30. G. Baur, C. Bertulani and H. Rebel, Nucl. Phys. A459 (1986) 188. [ Links ]
31. T. Motobayashi, et al., Phys. Rev. Lett. 73 (1994) 2680. [ Links ]
32. H. Esbensen, G.F. Bertsch, and K. Snover, Phys. Rev. Lett. 94 (2005) 042502; [ Links ] Moshe Gai, Phys. Rev. Lett. 96 (2006) 159201; [ Links ] H. Esbensen, G.F. Bertsch, and K. Snover, Phys. Rev. Lett. 94 (2005) 042502. [ Links ]
33. G.F. Bertsch and C.A. Bertulani, Nucl. Phys. A 556 (1993) 136; Phys. Rev. C 49 (1994) 2834; [ Links ] H. Esbensen, G.F. Bertsch and C.A. Bertulani, Nucl. Phys. A 581 (1995) 107. [ Links ]
34. H. Esbensen and G. Bertsch, Phys. Rev. Lett. A 359 (1995) 13; Nucl. Phys. A 600 (1996) 37. [ Links ]
35. T.N. Tadeucci et al., Nucl. Phys. A 469 (1987) 125. [ Links ]
36. H. Lenske, H.H. Wolter and H.G. Bohlen, Phys. Rev. Lett. 62 (1989) 1457. [ Links ]
37. C.A. Bertulani, Nucl. Phys. A 554 (1993) 493; [ Links ] C.A. Bertulani and P. Lotti, Phys. Lett. B 402 (1997) 237; [ Links ] C.A. Bertulani and D. Dolci, Nucl. Phys. A 674 (2000) 527. [ Links ]
38. S.M. Austin, N. Anantaraman and W.G. Love, Phys. Rev. Lett. 73 (1994) 30. [ Links ]
39. J.W. Watson et al., Phys. Rev. Lett. 55 (1985) 1369. [ Links ]
40. M. Steiner, et al., Phys. Rev. Lett. 76 (1996) 26. [ Links ]
41. R.G. Zegers et al., Los Alamos archive, arXiv:0710.2944. [ Links ]
42. P. Gregers Hansen, Nature 334 (1988) 194. [ Links ]
43. P. G. Hansen and J.A. Tostevin, Annu. Rev. Nucl. Part. Sci. 53 (2003) 219. [ Links ]
44. R.R. Clement et al., Phys. Rev. Lett. 92 (2004) 172502; [ Links ] H. Schatz et al., Phys. Rev. C72 (2005) 065804. [ Links ]
45. A. Volya and V. Zelevinsky, Phys. Rev. Lett. 94 (2005) 052501. [ Links ]
46. N. Michel, W. Nazarewicz, and M. Ploszajczak, Phys. Rev. C70 (2004) 064313. [ Links ]
47. G. Bertsch, J. Borysowicz, H. McManus, and W.G. Love, Nucl. Phys. A 284 (1977) 399. [ Links ]
48. P. Navratil, Phys. Rev. C. 70 (2004) 054324. [ Links ]
49. P. Navratil, C.A. Bertulani, and E. Caurier, Phys. Lett. B 634 (2006) 191. [ Links ]
50. P. Navratil, C.A. Bertulani, and E. Caurier, Phys. Rev. C 73 (2006) 065801. [ Links ]
51. B.K. Jennings, S. Karataglidis, and T.D. Shoppa, Phys. Rev. C 58 (1998) 579. [ Links ]
52. R.D. Williams and S.E. Koonin, Phys. Rev. C 23 (1981) 2773. [ Links ]
53. C.A. Bertulani, Phys. Rev. C 75 (2007) 024606. [ Links ]
54. S. Goriely, Phys. Lett. B 436 (1998) 10. [ Links ] ]]>