Sub-barrier fusion involving odd mass nuclei: The case of 36S + 50Ti, 51V

G. Colucci; G. Montagnoli; A. M. Stefanini; K. Hagino; A. Caciolli; P. Čolović; L. Corradi; E. Fioretto; F. Galtarossa; A. Goasduff; J. Grebosz; M. Mazzocco; D. Montanari; C. Parascandolo; F. Scarlassara; M. Siciliano; E. Strano; S. Szilner; N. Vukman

doi:10.1140/epja/i2019-12796-0

Sub-barrier fusion involving odd mass nuclei: The case of ³⁶S + ⁵⁰Ti, ⁵¹V

G. Colucci, G. Montagnoli, A. M. Stefanini, K. Hagino, A. Caciolli, P. Čolović, L. Corradi, E. Fioretto, F. Galtarossa, A. Goasduff, J. Grebosz, M. Mazzocco, D. Montanari, C. Parascandolo, F. Scarlassara, M. Siciliano, E. Strano, S. Szilner, N. Vukman

SCI - Physics

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Abstract

Sub-barrier fusion of the two near-by systems ³⁶S + ⁵⁰Ti, ⁵¹V has been measured at the Laboratori Nazionali di Legnaro (INFN). Motivation for the experiment came from the possible effect of the non-zero spin of the ground state of the ⁵¹V nucleus on the sub-barrier excitation function, and in particular on the shape of the barrier distribution. No previous data were available for these two systems near the barrier. Our results show that the two measured excitation functions are very similar down to the level of 20-30μb. The same is true for the two barrier distributions. Coupled-channel calculations have been performed including the low energy excitations of both projectile and the two targets. We have indication that the low-lying levels in ⁵¹V can be interpreted in the weak-coupling scheme, that is, ⁵¹V (I) = ⁵⁰Ti(2⁺) ⊗ p(1f_7/2) and that the extra proton in the 1 f_{7 / 2} shell does not have a significant influence on sub-barrier fusion.

Original language	English
Article number	111
Journal	European Physical Journal A
Volume	55
Issue number	7
DOIs	https://doi.org/10.1140/epja/i2019-12796-0
Publication status	Published - 2019 Jul 1

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1140/epja/i2019-12796-0

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Colucci, G., Montagnoli, G., Stefanini, A. M., Hagino, K., Caciolli, A., Čolović, P., Corradi, L., Fioretto, E., Galtarossa, F., Goasduff, A., Grebosz, J., Mazzocco, M., Montanari, D., Parascandolo, C., Scarlassara, F., Siciliano, M., Strano, E., Szilner, S., & Vukman, N. (2019). Sub-barrier fusion involving odd mass nuclei: The case of ³⁶S + ⁵⁰Ti, ⁵¹V. European Physical Journal A, 55(7), [111]. https://doi.org/10.1140/epja/i2019-12796-0

Colucci, G, Montagnoli, G, Stefanini, AM, Hagino, K, Caciolli, A, Čolović, P, Corradi, L, Fioretto, E, Galtarossa, F, Goasduff, A, Grebosz, J, Mazzocco, M, Montanari, D, Parascandolo, C, Scarlassara, F, Siciliano, M, Strano, E, Szilner, S & Vukman, N 2019, 'Sub-barrier fusion involving odd mass nuclei: The case of ³⁶S + ⁵⁰Ti, ⁵¹V', European Physical Journal A, vol. 55, no. 7, 111. https://doi.org/10.1140/epja/i2019-12796-0

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title = "Sub-barrier fusion involving odd mass nuclei: The case of 36S + 50Ti, 51V",

abstract = "Sub-barrier fusion of the two near-by systems 36S + 50Ti, 51V has been measured at the Laboratori Nazionali di Legnaro (INFN). Motivation for the experiment came from the possible effect of the non-zero spin of the ground state of the 51V nucleus on the sub-barrier excitation function, and in particular on the shape of the barrier distribution. No previous data were available for these two systems near the barrier. Our results show that the two measured excitation functions are very similar down to the level of 20-30μb. The same is true for the two barrier distributions. Coupled-channel calculations have been performed including the low energy excitations of both projectile and the two targets. We have indication that the low-lying levels in 51V can be interpreted in the weak-coupling scheme, that is, 51V (I) = 50Ti(2+) ⊗ p(1f7/2) and that the extra proton in the 1 f7 / 2 shell does not have a significant influence on sub-barrier fusion.",

author = "G. Colucci and G. Montagnoli and Stefanini, {A. M.} and K. Hagino and A. Caciolli and P. {\v C}olovi{\'c} and L. Corradi and E. Fioretto and F. Galtarossa and A. Goasduff and J. Grebosz and M. Mazzocco and D. Montanari and C. Parascandolo and F. Scarlassara and M. Siciliano and E. Strano and S. Szilner and N. Vukman",

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doi = "10.1140/epja/i2019-12796-0",

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T1 - Sub-barrier fusion involving odd mass nuclei

T2 - The case of 36S + 50Ti, 51V

AU - Colucci, G.

AU - Montagnoli, G.

AU - Stefanini, A. M.

AU - Hagino, K.

AU - Caciolli, A.

AU - Čolović, P.

AU - Corradi, L.

AU - Fioretto, E.

AU - Galtarossa, F.

AU - Goasduff, A.

AU - Grebosz, J.

AU - Mazzocco, M.

AU - Montanari, D.

AU - Parascandolo, C.

AU - Scarlassara, F.

AU - Siciliano, M.

AU - Strano, E.

AU - Szilner, S.

AU - Vukman, N.

PY - 2019/7/1

Y1 - 2019/7/1

N2 - Sub-barrier fusion of the two near-by systems 36S + 50Ti, 51V has been measured at the Laboratori Nazionali di Legnaro (INFN). Motivation for the experiment came from the possible effect of the non-zero spin of the ground state of the 51V nucleus on the sub-barrier excitation function, and in particular on the shape of the barrier distribution. No previous data were available for these two systems near the barrier. Our results show that the two measured excitation functions are very similar down to the level of 20-30μb. The same is true for the two barrier distributions. Coupled-channel calculations have been performed including the low energy excitations of both projectile and the two targets. We have indication that the low-lying levels in 51V can be interpreted in the weak-coupling scheme, that is, 51V (I) = 50Ti(2+) ⊗ p(1f7/2) and that the extra proton in the 1 f7 / 2 shell does not have a significant influence on sub-barrier fusion.

AB - Sub-barrier fusion of the two near-by systems 36S + 50Ti, 51V has been measured at the Laboratori Nazionali di Legnaro (INFN). Motivation for the experiment came from the possible effect of the non-zero spin of the ground state of the 51V nucleus on the sub-barrier excitation function, and in particular on the shape of the barrier distribution. No previous data were available for these two systems near the barrier. Our results show that the two measured excitation functions are very similar down to the level of 20-30μb. The same is true for the two barrier distributions. Coupled-channel calculations have been performed including the low energy excitations of both projectile and the two targets. We have indication that the low-lying levels in 51V can be interpreted in the weak-coupling scheme, that is, 51V (I) = 50Ti(2+) ⊗ p(1f7/2) and that the extra proton in the 1 f7 / 2 shell does not have a significant influence on sub-barrier fusion.

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Sub-barrier fusion involving odd mass nuclei: The case of ³⁶S + ⁵⁰Ti, ⁵¹V

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