search for $\alpha $-cluster states is an open and interesting question in nuclear structure and has implications for the understanding of helium burning in stars. We carried out an experiment to explore $\alpha $-cluster states above the 4$\alpha $-decay threshold in via the ($\alpha $,n) reaction at the University of Notre Dame's Nuclear Science Laboratory. The experimental setup included four double-sided strip detectors with 256 channels to measure energies and angular distributions of charged particles and 12 deuterated liquid scintillators were used to detect neutrons in the angular range 22\textordmasculine \textordmasculine . By reconstructing reaction kinematics $\alpha $-cluster levels in can be obtained. The experimental setup and preliminary results will be presented. work was supported by the NSF under contract number PHY -- 1419765.
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Authors
Armen Gyurjinyan
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Ethan Sauer
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Bryce Frentz
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Wanpeng Tan
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Anthony Battaglia
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Andrew Nystrom
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Clark Casarella
University of Notre Dame
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Mallory K. Smith
University of Notre Dame
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Patrick O'Malley
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Scott T. Marley
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Sabrina Strauss
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Andre Bermundez-Perez
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Benjamin Guerin
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Patrick Fasano
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Ani Aprahamian
University of Notre Dame
Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
Michael Febbraro
Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
Ramon O. Torres-Isea
Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
Frederick D. Becchetti
Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
Martin Freer
School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
Gvirol Goldring
Department of Particle Physics, Weizmann Institue, 76100 Rehovot, Israel
