Xe136+Pb208 reaction: A test of models of multinucleon transfer reactions

J. S. Barrett, W. Loveland, R. Yanez, S. Zhu, A. D. Ayangeakaa, M. P. Carpenter, J. P. Greene, R. V. F. Janssens, T. Lauritsen, E. A. McCutchan, A. A. Sonzogni, C. J. Chiara, J. L. Harker, and W. B. Walters
Phys. Rev. C 91, 064615 – Published 22 June 2015

Abstract

The yields of over 200 projectile-like fragments (PLFs) and target-like fragments (TLFs) from the interaction of (Ec.m.=450 MeV) Xe136 with a thick target of Pb208 were measured using Gammasphere and off-line γ-ray spectroscopy, giving a comprehensive picture of the production cross sections in this reaction. The measured yields were compared to predictions of the grazing model and the predictions of Zagrebaev and Greiner using a quantitative metric, the theory evaluation factor tef. The grazing model predictions are adequate for describing the yields of nuclei near the target or projectile but they grossly underestimate the yields of all other products. The predictions of Zagrebaev and Greiner correctly describe the magnitude and maxima of the observed TLF transfer cross sections for a wide range of transfers (ΔZ=8 to ΔZ=+2). However, for ΔZ=+4, the observed position of the maximum in the distribution is four neutrons richer than the predicted maximum. The predicted yields of the neutron-rich N=126 nuclei exceed the measured values by two orders of magnitude. Correlations between TLF and PLF yields are discussed.

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  • Received 28 February 2015

DOI:https://doi.org/10.1103/PhysRevC.91.064615

©2015 American Physical Society

Authors & Affiliations

J. S. Barrett, W. Loveland, and R. Yanez

  • Department of Chemistry, Oregon State University, Corvallis, Oregon 97331 USA

S. Zhu, A. D. Ayangeakaa, M. P. Carpenter, J. P. Greene, R. V. F. Janssens, and T. Lauritsen

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 USA

E. A. McCutchan and A. A. Sonzogni

  • National Nuclear Data Center, Brookhaven National Laboratory, Upton, New York 11973, USA

C. J. Chiara* and J. L. Harker

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA and Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA

W. B. Walters

  • Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA

  • *Present address: US Army Research Laboratory, Adelphi, Maryland 20783.

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Issue

Vol. 91, Iss. 6 — June 2015

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