Hindrance of complete fusion in the Li8+Pb208 system at above-barrier energies

Physical Review C - Nuclear Physics

Volumn 80, Issue 4, 2009, Pages

  Aguilera, E F ^a   Martinez Quiroz, E ^a   Rosales, P ^a   Kolata, J J ^b   Deyoung, P A ^c   Peaslee, G F ^c   Mears, P ^c   Guess, C ^c   Becchetti, F D ^d   Lupton, J H ^d   Chen, Yu ^d  

^a INSTITUTO NACIONAL DE INVESTIGACIONES NUCLEARES   (Mexico)

^b UNIVERSITY OF NOTRE DAME   (United States)

^c HOPE COLLEGE   (United States)

^d UNIVERSITY OF MICHIGAN   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 70350759671     PISSN: 05562813     EISSN: 1089490X     Source Type: Journal    
DOI: 10.1103/PhysRevC.80.044605     Document Type: Article

References (52)

1. E. F. Aguilera, J. J. Kolata, F. M. Nunes, F. D. Becchetti, P. A. DeYoung, M. Goupell, V. Guimaraes, B. Hughey, M. Y. Lee, D. Lizcano, E. Martinez-Quiroz, A. Nowlin, T. W. O'Donnell, G. F. Peaslee, D. Peterson, P. Santi, and R. White-Stevens, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.84.5058 84, 5058 (2000).
2. E. F. Aguilera, J. J. Kolata, F. D. Becchetti, P. A. DeYoung, J. D. Hinnefeld, A. Horvath, L. O. Lamm, Hye-Young Lee, D. Lizcano, E. Martinez-Quiroz, P. Mohr, T. W. O'Donnell, D. A. Roberts, and G. Rogachev, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.63.061603 63, 061603 (R) (2001).
3. N. Keeley, R. Raabe, N. Alamanos, J. L. Sida, Prog. Part. Nucl. Phys. PPNPDB 0146-6410 10.1016/j.ppnp.2007.02.002 59, 579 (2007).
4. E. F. Aguilera, E. Martinez-Quiroz, D. Lizcano, A. Gómez-Camacho, J. J. Kolata, L. O. Lamm, V. Guimarães, R. Lichtenthäler, O. Camargo, F. D. Becchetti, H. Jiang, P. A. DeYoung, P. J. Mears, and T. L. Belyaeva, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.79.021601 79, 021601 (R) (2009).
5. L. F. Canto, P. R. S. Gomes, R. Donangelo, M. S. Hussein, Phys. Rep. PRPLCM 0370-1573 10.1016/j.physrep.2005.10.006 424, 1 (2006).
6. C. H. Dasso, S. Landowne, and A. Winther, Nucl. Phys. NUPABL 0375-9474 10.1016/0375-9474(83)90578-X A405, 381 (1983).
7. H. Feshbach, Theoretical Nuclear Physics: Nuclear Reactions (John Wiley & Sons, New York, 1992).
8. J. P. Bychowski, P. A. DeYoung, B. B. Hilldore, J. D. Hinnefeld, A. Vida, F. D. Becchetti, J. Lupton, T. W. O'Donnell, J. J. Kolata, G. Rogachev, and M. Hencheck, Phys. Lett. PYLBAJ 0370-2693 10.1016/j.physletb.2004.05.058 B596, 26 (2004).
9. P. A. DeYoung, Patrick J. Mears, J. J. Kolata, E. F. Aguilera, F. D. Becchetti, Y. Chen, M. Cloughesy, H. Griffin, C. Guess, J.D. Hinnefeld, H. Jiang, Scott R. Jones, U. Khadka, D. Lizcano, E. Martinez-Quiroz, M. Ojaniega, G. F. Peaslee, A. Pena, J. Rieth, S. VanDenDriessche, and J. A. Zimmerman, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.71.051601 71, 051601 (R) (2005).
10. J. J. Kolata, H. Amro, F. D. Becchetti, J. A. Brown, P. A. DeYoung, M. Hencheck, J. D. Hinnefeld, G. F. Peaslee, A.L. Fritsch, C. Hall, U. Khadka, Patrick J. Mears, P. O'Rourke, D.Padilla, J. Rieth, Tabatha Spencer, and T. Williams, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.75.031302 75, 031302 (R) (2007).
11. A. Chatterjee, A. Navin, A. Shrivastava, S. Bhattacharyya, M. Rejmund, N. Keeley, V. Nanal, J. Nyberg, R. G. Pillay, K.Ramachandran, I. Stefan, D. Bazin, D. Beaumel, Y. Blumenfeld, G. de France, D. Gupta, M. Labiche, A. Lemasson, R. Lemmon, R. Raabe, J. A. Scarpaci, C. Simenel, and C. Timis, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.101.032701 101, 032701 (2008).
12. D. Pereira, C. P. Silva, J. Lubian, E. S. Rossi, Jr., and L. C. Chamon, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.73.014601 73, 014601 (2006).
13. L. F. Canto, J. Phys. G: Nucl. Part. Phys. JPGPED 0954-3899 10.1088/0954-3899/36/1/015109 36, 015109 (2009).
14. M. Dasgupta, D. J. Hinde, R. D. Butt, R. M. Anjos, A. C. Berriman, N. Carlin, P. R. S. Gomes, C. R. Morton, J. O. Newton, A. Szanto de Toledo, and K. Hagino, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.82.1395 82, 1395 (1999).
15. M. Dasgupta, D. J. Hinde, K. Hagino, S. B. Moraes, P. R. S. Gomes, R. M. Anjos, R. D. Butt, A. C. Berriman, N. Carlin, C. R. Morton, J. O. Newton, and A. Szanto de Toledo, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.66.041602 66, 041602 (R) (2002).
16. M. Dasgupta, P. R. S. Gomes, D. J. Hinde, S. B. Moraes, R. M. Anjos, A. C. Berriman, R. D. Butt, N. Carlin, J. Lubian, C. R. Morton, J. O. Newton, and A. Szanto de Toledo, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.70.024606 70, 024606 (2004).
17. V. Tripathi, A. Navin, K. Mahata, K. Ramachandran, A. Chatterjee, and S. Kailas, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.88.172701 88, 172701 (2002).
18. Y. W. Wu, Z. H. Liu, C. J. Lin, H. Q. Zhang, M. Ruan, F. Yang, Z. C. Li, M. Trotta, K. Hagino, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.68.044605 68, 044605 (2003).
19. A. Mukherjee, Subinit Roy, M. K. Pradhan, M. Saha Sarkar, P. Basu, B. Dasmahapatra, T. Bhattacharya, S. K. Basu, A. Chatterjee, V. Tripathi, and S. Kailas, Phys. Lett. PYLBAJ 0370-2693 10.1016/j.physletb.2006.03.051 B636, 91 (2006).
20. L. R. Gasques, D. J. Hinde, M. Dasgupta, A. Mukherjee, and R. G. Thomas, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.79.034605 79, 034605 (2009).
21. P. R. S. Gomes, I. Padron, E. Crema, O. A. Capurro, J. O. Fernández Niello, G. V. Marti, A. Arazi, M. Trotta, J. Lubian, M. E. Ortega, A. J. Pacheco, M. D. Rodríguez, J. E. Testoni, R. M. Anjos, L. C. Chamon, M. Dasgupta, D. J. Hinde, and K. Hagino, Phys. Lett. PYLBAJ 0370-2693 10.1016/j.physletb.2006.02.005 B634, 356 (2006).
22. A. M. M. Maciel, P. R. S. Gomes, J. Lubian, R. M. Anjos, R. Cabezas, G. M. Santos, C. Muri, S. B. Moraes, R. L. Neto, N. Added, N. C. Filho, and C. Tenreiro, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.59.2103 59, 2103 (1999).
23. K. Hagino, A. Vitturi, C. H. Dasso, and S. M. Lenzi, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.61.037602 61, 037602 (2000).
24. C. Beck, F. A. Souza, N. Rowley, S. J. Sanders, N. Aissaoui, E. E. Alonso, P. Bednarczyk, N. Carlin, S. Courtin, A.Diaz-Torres, A. Dummer, F. Haas, A. Hachem, K. Hagino, F. Hoellinger, R. V. F. Janssens, N. Kintz, R. LiguoriNeto, E. Martin, M. M. Moura, M. G. Munhoz, P. Papka, M. Rousseau, A. SancheziZafra, O. Stezowski, A. A. Suaide, E. M. Szanto, A. Szanto de Toledo, S. Szilner, and J. Takahashi, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.67. 054602 67, 054602 (2003).
25. R. J. Woolliscroft, N. M. Clarke, B. R. Fulton, R. L. Cowin, M. Dasgupta, D. J. Hinde, C. R. Morton, and A. C. Berriman, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.68.014611 68, 014611 (2003).
26. A. Diaz-Torres, I. J. Thompson, and C. Beck, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.68.044607 68, 044607 (2003).
27. M. S. Hussein, L. F. Canto, and R. Donangelo, Nucl. Phys. NUPABL 0375-9474 10.1016/S0375-9474(03)01384-8 A722, 321 c (2003).
28. A. Szanto de Toledo, F. A. Souza, C. Beck, S. J. Sanders, M.G. Munhoz, J. Takahashi, N. Carlin, A. A. P. Suaide, M. M. deMoura, and E. M. Szanto, Nucl. Phys. NUPABL 0375-9474 10.1016/j.nuclphysa.2004.01.055 A734, 311 (2004).
29. W. Y. So, S. W. Hong, B. T. Kim, and T. Udagawa, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.69.064606 69, 064606 (2004).
30. P. R. S. Gomes, M. D. Rodriguez, G. V. Marti, I. Padron, L. C. Chamon, J. O. Fernandez Niello, O. A. Capurro, A. J. Pacheco, J. E. Testoni, A. Arazi, M. Ramirez, R. M. Anjos, J. Lubian, R.Veiga, R. Liguori Neto, E. Crema, N. Added, C. Tenreiro, and M. S. Hussein, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.71.034608 71, 034608 (2005).
31. L. F. Canto, R. Donangelo, and H. D. Marta, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.73.034608 73, 034608 (2006).
32. L. F. Canto, R. Donangelo, and M. S. Hussein, Nucl. Phys. NUPABL 0375-9474 10.1016/j.nuclphysa.2006.12.039 A787, 243 c (2007).
33. C. J. Lin, H. Q. Zhang, F. Yang, M. Ruan, Z. H. Liu, Y. W. Wu, X. K. Wu, P. Zhou, C. L. Zhang, G. L. Zhang, G. P. An, H. M. Jia, and X. X. Xu, Nucl. Phys. NUPABL 0375-9474 10.1016/j.nuclphysa.2006.12.044 A787, 281 c (2007).
34. J. J. Kolata, V. Z. Goldberg, L. O. Lamm, M. G. Marino, C. J. O'Keeffe, G. Rogachev, E. F. Aguilera, H. Garcia-Martinez, E. Martinez-Quiroz, P. Rosales, F. D. Becchetti, T. W. O'Donnell, D. A. Roberts, J. A. Brown, P. A. DeYoung, J. D. Hinnefeld, and S. A. Shaheen, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.65.054616 65, 054616 (2002).
35. A. Gómez-Camacho and E. F. Aguilera, Nucl. Phys. NUPABL 0375-9474 10.1016/j.nuclphysa.2004.02.009 A735, 425 (2004).
36. A. M. Moro, R. Crespo, H. Garcia-Martinez, E. F. Aguilera, E. Martinez-Quiroz, J. Gómez-Camacho, and F. M. Nunes, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.68.034614 68, 034614 (2003).
37. A. M. Moro, R. Crespo, H. García-Martínez, E. F. Aguilera, E. Martinez-Quiroz, J. Gómez-Camacho, and F. M. Nunes, Rev. Mex. Fís. 49, S4, 73 (2003), http://rmf.fciencias.unam.mx/pdf/rmf-s/49/4/49-4- 073.pdf.
38. F. D. Becchetti, R. S. Raymond, D. A. Roberts, J. Lucido, P. A. DeYoung, B. Hilldore, J. Bychowski, A. J. Huisman, P. J. VanWylen, J. J. Kolata, G. Rogachev, and J. D. Hinnefeld, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.71.054610 71, 054610 (2005).
39. E. F. Aguilera, Rev. Mex. Fís. 50, S2, 1 (2004), (http://rmf.fciencias.unam.mx/pdf/rmf-s/50/2/50-2-001.pdf);
40. E. F. Aguilera, Rev. Mex. Fís. 53, S6, 1 (2007), (http://rmf.fciencias.unam.mx/pdf/rmf-s/53/6/53-6-001.pdf).
41. J. J. Kolata, V. Guimaraes, D. Peterson, P. Santi, R. White-Stevens, P. A. DeYoung, G. F. Peaslee, B. Hughey, B. Atalla, M. Kern, P. L. Jolivette, J. A. Zimmerman, M. Y. Lee, F. D. Becchetti, E. F. Aguilera, E. Martinez-Quiroz, and J. D. Hinnefeld, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.81.4580 81, 4580 (1998).
42. A. Gavron, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.21.230 21, 230 (1980).
43. For radioactive nuclei with decay constant λ that are being produced at some rate P, the respective activity A follows the well known decay law dA/dt=λ(P-A). If only one cycle of the pulsed beam is considered, the solution can be given by two functions, one valid during the time (ton) that the beam is on (A1) and the other one valid afterwards (A2): A1(t)=P(1-e-λt),A2(t)=A1(ton)e-λ(t-ton). The integral of A2(t) over any time interval can thus be easily related to P and therefore to the respective cross section. This method, with the additional assumption that each beam-on cycle contributes only to the counts in the two succesive beam-off periods, was used by one group (ININ) to deduce the cross sections for At212 production. Alternatively, the periodic step function P corresponding to a whole experimental run can be used in the decay law and an exact numeric solution for A can be found. This method was used by the second group (Hope College). For the case of At211 the procedure is somewhat simpler but the detailed history of the bombardement must be taken into account.
44. R. Bass, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.39.265 39, 265 (1977).
45. R. A. Broglia and A. Winther, Heavy Ion Reactions (Benjamin, Reading, MA, 1981), Vol. I.
46. L. C. Vaz, J. M. Alexander, and G. R. Satchler, Phys. Rep. PRPLCM 0370-1573 10.1016/0370-1573(81)90094-6 69, 373 (1981).
47. Y. Suzuki, R. G. Lovas, K. Yabana, and K. Varga, Structure and Reactions of Light Exotic Nuclei (Taylor & Francis, London, 2003).
48. R. K. Puri and R. K. Gupta, in Proceedings of the International Conference on Heavy Ion Fusion: Exploring the Variety of Nuclear Properties, Padova, 1994, edited by, A. M. Stefanini, G. Nebbia, S. Lunardi, G. Montagnoli, and, A. Vitturi, (World Scientific, Singapore, 1994), p. 319.
49. B. Haas, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.54.398 54, 398 (1985).
50. M. Dasgupta, A. Navin, Y. K. Agarwal, C. V. K. Baba, H. C. Jain, M. L. Jhingan, and A. Roy, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.66. 1414 66, 1414 (1991).
51. P. R. S. Gomes, J. Lubian, I. Padron, and R. M. Anjos, Phys. Rev. C PRVCAN 0556-2813 10.1103/PhysRevC.71.017601 71, 017601 (2005).
52. D. J. Hinde, M. Dasgupta, B. R. Fulton, C. R. Morton, R. J. Wooliscroft, A. C. Berriman, and K. Hagino, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.89.272701 89, 272701 (2002).