Spectroscopy of Ti-44,Ti-46 with the Binary Reaction Spectrometer and Euroball

Thummerer, S Gebauer, B Bohlen, HG von Oertzen, W Bazzacco, D Lenzi, SM Algora, A de Angelis, G Gadea, A Napoli, DR Borcan, C Donau, F Kaubler, L Schnare, H Schwengner, R Peter, I Beck, C Bhattacharya, C Rousseau, M Nouicer, R Lisle, J

S. Thummerer et al., Spectroscopy of Ti-44,Ti-46 with the Binary Reaction Spectrometer and Euroball, PHYS SCR, T88, 2000, pp. 114-117

15

INGLESE

Article

Physics

PHYSICA SCRIPTA

0281-1847 → ACNP

T88

2000

114 - 117

ISI

0281-1847(2000)T88:<114:SOTWTB>2.0.ZU;2-7

A first experiment was performed with the Binary Reaction trigger Spectrome ter (BRS) for Euroball, as second last experiment of phase III. The reactio n Mg-24(S, Ni-56*) at E = 163.5 MeV was chosen in order to populate a speci fic hyperdeformed resonance state in the compound nucleus 56Ni* at E* = 84 MeV (J(pi) = 46(+)) and to investigate the spectroscopy of its binary desce ndents. The experimental setup combined the gamma-detector array Euroball I II, without the phase I Ge detectors, the two large-area gas detector teles copes of the BRS at forward angles and 31 of the 40 detectors of the 4 pi s ilicon ball EUROSiB (now called ROSiB) at backward angles. We report on res ults of binary reaction triggers collected with one BRS telescope. Binary e vents are separated from evaporation residues due to (i) the large laborato ry scattering angles of the detected reaction fragments, the opening angle of the BRS telescope being theta = 12 degrees - 46 degrees, and (ii) by mea ns of particle identification in the telescope. In this paper channels with emission of Be-8 plus two protons and of C-12 will be discussed.