Eur. Phys. J. A (2010) 46: 157-160
https://doi.org/10.1140/epja/i2010-11054-5

Letter

Proton resonance elastic scattering in inverse kinematics on the medium heavy nucleus ⁶⁸Zn

¹ Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Oho 1-1, 305-0801, Tsukuba, Ibaraki, Japan
² Japan Atomic Energy Agency, Shirakata Shirane 2-4, 319-1195, Tokai, Ibaraki, Japan
³ Institute of Physics, University of Tsukuba, Tennodai 1-1, 305-8577, Tsukuba, Ibaraki, Japan

^* e-mail: nobuaki.imai@kek.jp

Received: 9 July 2010
Accepted: 8 October 2010
Published online: 24 October 2010

Abstract

An isobaric analog resonance of ⁶⁹Zn was studied by the resonance elastic scattering of p ( ⁶⁸Zn , p with a 5.5MeV/nucleon ⁶⁸Zn beam and a thick polyethylene target. The excitation function of the differential cross-section of proton elastic scattering was measured around 0 degrees in the laboratory frame by the thick target inverse kinematics method. The angular momentum, and proton and total widths of the resonance assigned using an R -matrix calculation are in good agreement with earlier measurements performed using normal kinematics, demonstrating that the thick target inverse kinematics method is a useful tool for studying the single-particle structures of neutron-rich nuclei.