Comparison of complementary reactions in the production of Mt

S. L. Nelson, K. E. Gregorich, I. Dragojević, J. Dvořák, P. A. Ellison, M. A. Garcia, J. M. Gates, L. Stavsetra, M. N. Ali, and H. Nitsche

Phys. Rev. C 79, 027605 – Published 25 February 2009

Abstract

The new reaction ${}^{208}{Pb} ({}^{59}{Co}, n) {}^{266}{Mt}$ was studied using the Berkeley Gas-filled Separator at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron. A cross section of ${7.7}_{- 3.3}^{+ 5.2}$ pb was measured at a compound nucleus excitation energy of 14.9 MeV. The measured decay properties of ${}^{266}{Mt}$ and its daughters correspond well with existing data. We compare this experimental result to transactinide compound nucleus formation model predictions, and the previously studied ${}^{209}{Bi} ({}^{58}{Fe}, n) {}^{266}{Mt}$ reaction.

Received 20 December 2008

DOI:https://doi.org/10.1103/PhysRevC.79.027605

Authors & Affiliations

S. L. Nelson^1,2,*, K. E. Gregorich¹, I. Dragojević^1,2, J. Dvořák¹, P. A. Ellison^1,2, M. A. Garcia^1,2, J. M. Gates^1,2, L. Stavsetra¹, M. N. Ali², and H. Nitsche^1,2

¹Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
²Department of Chemistry, University of California, Berkeley, California 94720, USA

^*Current address: Lawrence Livermore National Laboratory, P. O. Box 808, L-235, Livermore, California 94551, USA.

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Vol. 79, Iss. 2 — February 2009

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