Simulation of the AGATA array and the investigation of the nuclear continuum
D. C. Flechas 1*, F. Cristancho 1,2, E. Merchán 3
1 Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia
2 Centro Internacional de Física, Bogotá, Colombia
3 Helmholtzzentrum GSI, Darmstadt, Germany
The Advanced GAmma-ray Tracking Array (AGATA) is proposed for high-resolution gamma ray spectroscopy. A host of different nuclear physics questions are awaiting to be answered using the extraordinary capabilities of this instrument. Among them questions regarding the nuclear continuum, that energy-spin region in which no more discrete states are observable and instead statistical quantities like level density and temperature can be investigated. Detecting the gamma-ray decay from those high excitation energy and high spin regions has always implied the use of scintillators because of their better efficiency, in comparison to Ge, for energies around 10 MeV. A combination of experimental techniques was proven as successful in the investigation of the nuclear continuum when using scintillator arrays like GASP. The present work uses a Geant4 simulation of AGATA to investigate its possibilities when the large efficiency to the detection of gamma cascades with multiplicities as large as M = 30 is used in order to study the nuclear continuum. The initial main subject is to determine the response function of AGATA when a cascade of multiplicity M starts at nuclear excitation energy E, that is to determine how many detectors k are fired and how much energy H is collected by the array. These are the primary quantities that could allow the method proven already as successful with scintillators.