Gyoungmo Gu
(Sungkyunkwan University,Center for Exotic Nuclear Studies, Institute for Basic Science)
Particle-hole excitations near closed nuclear shells provide important information on single-particle properties, shell evolution, and residual two-body interactions. While doubly magic and near-doubly magic nuclei have been extensively studied, charge-changing particle-hole excitation states in $^{48}$Ca, corresponding to negative-parity T=5 states, remain less well established. These states are of particular interest because they can be interpreted as isobaric analog states associated with particle-hole excitations in $^{48}$K.
To investigate these states, the $^{47}$K($p$,$p$)$^{47}$K elastic resonance scattering measurement was performed in inverse kinematics using the Array for Nuclear Astrophysics and Structure with Exotic Nuclei (ANASEN) as an active-target detector. A radioactive $^{47}$K beam from ReA3 at the National Superconducting Cyclotron Laboratory, with an energy of 4.6 MeV/u, was delivered to methane gas inside ANASEN. The methane gas served as both the hydrogen target and the active detector medium, allowing the excitation function for $p$+$^{47}$K elastic scattering to be measured over $E_{c.m.}$ = 1-4.5 MeV.
Recoil protons were detected with the ANASEN charged-particle detector system, and the reaction kinematics were reconstructed to obtain the center-of-mass excitation function. The excitation function is being analyzed to extract resonance parameters for negative-parity T=5 states in $^{48}$Ca. The experimental method, analysis procedure, and preliminary results will be presented.
Gyoungmo Gu
(Sungkyunkwan University,Center for Exotic Nuclear Studies, Institute for Basic Science)
Sunghoon (Tony) Ahn
(Center for Exotic Nuclear Studies, Institute for Basic Science, Cyclotron Institute, Texas A&M University, Department of Physics and Astronomy, Texas A&M University, National Superconducting Cyclotron Laboratory, Michigan State University, JINA Center for the Evolution of the Elements, Michigan State University)
Dr
Ashley Hood
(Department of Physics and Astronomy, Louisiana State University)
Dr
Catherine Deibel
(Department of Physics and Astronomy, Louisiana State University)
Curtis Hunt
(Cyclotron Institute, Texas A&M University, Department of Physics and Astronomy, Texas A&M University)
Dr
Daniel Santiago-Gonzalez
(Department of Physics and Astronomy, Louisiana State University, Argonne National Laboratory)
Fernando Montes
(National Superconducting Cyclotron Laboratory, Michigan State University, 6 JINA Center for the Evolution of the Elements, Michigan State University)
Grigory Rogachev
(Cyclotron Institute, Texas A&M University, Department of Physics and Astronomy, Texas A&M University, Nuclear Solutions Institute, Texas A&M University)
Dr
Ingo Wiedenhover
(Florida State University)
Dr
Jeffery C Blackmon
(Department of Physics and Astronomy, Louisiana State University)
Dr
Jon Lighthall
(Department of Physics and Astronomy, Louisiana State University)
Joshua Hooker
(Cyclotron Institute, Texas A&M University, Department of Physics and Astronomy, Texas A&M University)
Dr
Justin Browne
(National Superconducting Cyclotron Laboratory, Michigan State University, Department of Physics and Astronomy, Michigan State University)
Dr
Konrad Schmidt
(JINA Center for the Evolution of the Elements, Michigan State University)
Prof.
Kyungyuk Chae
(Department of Physics, Sungkyunkwan University)
Dr
Maria Anastasiou
(Florida State University)
Nabin Rijal
(Florida State University)
Dr
Shadi Bedoor
(Cyclotron Institute, Texas A&M University)
Dr
Sriteja Upadhyayula
(Cyclotron Institute, Texas A&M University, Department of Physics and Astronomy, Texas A&M University)
Dr
Wei Jia Ong
(National Superconducting Cyclotron Laboratory, Michigan State University, Department of Physics and Astronomy, Michigan State University)
Dr
Yevgen Koshchiy
(Cyclotron Institute, Texas A&M University)
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