Different methods for the identification of short-life nuclei: the 8Be case

• Published in: European physical journal plus Vol. 138; no. 1; p. 89
• Main Authors: Giuseppe, Cardella, Brunilde, Gnoffo, Luis, Acosta, Enrico, De Filippo, Elena, Geraci, Chiara, Guazzoni, Concetta, Maiolino, Simona, Martorana Nunzia, Angelo, Pagano, Vincenzo, Pagano Emanuele, Massimo, Papa, Sara, Pirrone, Giuseppe, Politi, Fabio, Risitano, Francesca, Rizzo, Paolo, Russotto, Marina, Trimarchí
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 26-01-2023; Springer Nature B.V
• Subjects: Angular resolution; Applied and Technical Physics; Atomic; Complex Systems; Condensed Matter Physics; Energy; Identification; Identification methods; Inverse kinematics; Kinematics; Mathematical and Computational Physics; Molecular; Nuclear physics; Nuclei; Optical and Plasma Physics; Physics; Physics and Astronomy; Pulse shape; Regular Article; Sensors; Theoretical
• ISSN: 2190-5444
• DOI: 10.1140/epjp/s13360-023-03681-3

We show all different detection methods for
8
Be identification, available in the 4
π
CHIMERA multidetector. The methods here presented are interesting because they can be extended to resonances also in radioactive nuclei at the border of drip lines, in reactions in inverse kinematics that are characterized by small relative angles among the decay products. In particular, an analysis of the kinematic detection method is done by discussing the effect of the angular resolution on the accuracy determination of the energy of the resonance. Various “pile up” identification methods are shown, as the well known
Δ
E-E method, the time of flight technique and pulse shape analysis. The last section is focused on simulations, that show how the energy is shared between
α
-particles emitted by a
8
Be nucleus. A method that tries to recover for the limits in detector angular resolution is also described by investigating its possibilities and uncertainties.