Influence of nuclear structure on sub-barrier hindrance in Ni + Ni fusion

C. L. Jiang; K. E. Rehm; R. V.F. Janssens; H. Esbensen; L. Ahmad; B. B. Back; P. Collon; C. N. Davids; J. P. Greene; D. J. Henderson; G. Mukherjee; R. C. Pardo; M. Paul; T. O. Pennington; D. Seweryniak; S. Sinha; Z. Zhou

doi:10.1103/PhysRevLett.93.012701

Influence of nuclear structure on sub-barrier hindrance in Ni + Ni fusion

C. L. Jiang^*
, K. E. Rehm
, R. V.F. Janssens
, H. Esbensen
, L. Ahmad
, B. B. Back
, P. Collon
, C. N. Davids
, J. P. Greene
, D. J. Henderson
, G. Mukherjee
, R. C. Pardo
, M. Paul
, T. O. Pennington
, D. Seweryniak
, S. Sinha
, Z. Zhou

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

202 Scopus citations

Abstract

The fusion excitation function for ⁶⁴Ni + ⁶⁴Ni down to a cross section level of 10 nb and have observed a strong fusion hindrance at extreme sub-barrier energies. The onset of the sub-barrier fusion hindrance in ⁶⁴Ni + ⁶⁴Ni was found to occur 8.4 MeV lower in center-of-mass energy, whereas a 2 MeV higher energy was expected on the basis of systematics. The effect was found to appear to be associated with the nuclear structure of the interacting nuclei. A strong dependence of the energy where the hindrance was also found to occur on the stiffness of the interacting nuclei.

Original language	English
Article number	012701
Pages (from-to)	012701-1-012701-4
Journal	Physical Review Letters
Volume	93
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.93.012701
State	Published - 2 Jul 2004

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Jiang, C. L., Rehm, K. E., Janssens, R. V. F., Esbensen, H., Ahmad, L., Back, B. B., Collon, P., Davids, C. N., Greene, J. P., Henderson, D. J., Mukherjee, G., Pardo, R. C., Paul, M., Pennington, T. O., Seweryniak, D., Sinha, S., & Zhou, Z. (2004). Influence of nuclear structure on sub-barrier hindrance in Ni + Ni fusion. Physical Review Letters, 93(1), 012701-1-012701-4. Article 012701. https://doi.org/10.1103/PhysRevLett.93.012701

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title = "Influence of nuclear structure on sub-barrier hindrance in Ni + Ni fusion",

abstract = "The fusion excitation function for 64Ni + 64Ni down to a cross section level of 10 nb and have observed a strong fusion hindrance at extreme sub-barrier energies. The onset of the sub-barrier fusion hindrance in 64Ni + 64Ni was found to occur 8.4 MeV lower in center-of-mass energy, whereas a 2 MeV higher energy was expected on the basis of systematics. The effect was found to appear to be associated with the nuclear structure of the interacting nuclei. A strong dependence of the energy where the hindrance was also found to occur on the stiffness of the interacting nuclei.",

author = "Jiang, \{C. L.\} and Rehm, \{K. E.\} and Janssens, \{R. V.F.\} and H. Esbensen and L. Ahmad and Back, \{B. B.\} and P. Collon and Davids, \{C. N.\} and Greene, \{J. P.\} and Henderson, \{D. J.\} and G. Mukherjee and Pardo, \{R. C.\} and M. Paul and Pennington, \{T. O.\} and D. Seweryniak and S. Sinha and Z. Zhou",

year = "2004",

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doi = "10.1103/PhysRevLett.93.012701",

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pages = "012701--1--012701--4",

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Jiang, CL, Rehm, KE, Janssens, RVF, Esbensen, H, Ahmad, L, Back, BB, Collon, P, Davids, CN, Greene, JP, Henderson, DJ, Mukherjee, G, Pardo, RC, Paul, M, Pennington, TO, Seweryniak, D, Sinha, S & Zhou, Z 2004, 'Influence of nuclear structure on sub-barrier hindrance in Ni + Ni fusion', Physical Review Letters, vol. 93, no. 1, 012701, pp. 012701-1-012701-4. https://doi.org/10.1103/PhysRevLett.93.012701

TY - JOUR

T1 - Influence of nuclear structure on sub-barrier hindrance in Ni + Ni fusion

AU - Jiang, C. L.

AU - Rehm, K. E.

AU - Janssens, R. V.F.

AU - Esbensen, H.

AU - Ahmad, L.

AU - Back, B. B.

AU - Collon, P.

AU - Davids, C. N.

AU - Greene, J. P.

AU - Henderson, D. J.

AU - Mukherjee, G.

AU - Pardo, R. C.

AU - Paul, M.

AU - Pennington, T. O.

AU - Seweryniak, D.

AU - Sinha, S.

AU - Zhou, Z.

PY - 2004/7/2

Y1 - 2004/7/2

N2 - The fusion excitation function for 64Ni + 64Ni down to a cross section level of 10 nb and have observed a strong fusion hindrance at extreme sub-barrier energies. The onset of the sub-barrier fusion hindrance in 64Ni + 64Ni was found to occur 8.4 MeV lower in center-of-mass energy, whereas a 2 MeV higher energy was expected on the basis of systematics. The effect was found to appear to be associated with the nuclear structure of the interacting nuclei. A strong dependence of the energy where the hindrance was also found to occur on the stiffness of the interacting nuclei.

AB - The fusion excitation function for 64Ni + 64Ni down to a cross section level of 10 nb and have observed a strong fusion hindrance at extreme sub-barrier energies. The onset of the sub-barrier fusion hindrance in 64Ni + 64Ni was found to occur 8.4 MeV lower in center-of-mass energy, whereas a 2 MeV higher energy was expected on the basis of systematics. The effect was found to appear to be associated with the nuclear structure of the interacting nuclei. A strong dependence of the energy where the hindrance was also found to occur on the stiffness of the interacting nuclei.

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JO - Physical Review Letters

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IS - 1

M1 - 012701

ER -

Influence of nuclear structure on sub-barrier hindrance in Ni + Ni fusion

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