The 10B+10B reactions are measured at beam energies of 50 and 72.2 MeV. The large spin of 10B nucleus (Jύ= 3+) makes this reaction particularly suitable to populate high spin states in the exit ...channels. Population and decay of different states in A≈10 mass region is studied, and the results are discussed from the structure point of view. In particular, a new state in 12C at Ex= 24.4 MeV is observed to be strongly populated in the triple α-particle coincidences.
Transfer reactions have always been of great importance for nuclear structure and reaction mechanism studies. So far, in multinucleon transfer studies, proton pickup channels have been completely ...identified in atomic and mass numbers at energies close to the Coulomb barrier only in few cases. We measured the multinucleon transfer reactions in the
40
Ar+
208
Pb system near the Coulomb barrier, by employing the PRISMA magnetic spectrometer. By using the most neutron-rich stable
40
Ar beam we could populate, besidesneutron pickup and proton stripping channels, also neutron stripping and proton pickup channels. Comparison ofcross sections between different systems with the
208
Pb target and with projectiles going from neutron-poor to neutron-rich nuclei, as well as between the data and GRAZING calculations, was carried out.Finally, recent results concerning the measurement of the excitation function from the Coulomb barrier to far below for the
92
Mo+
54
Fe system, where both proton stripping and pickup channels were populated with similar strength, will be discussed.
The experimental evidence for existence of nuclear molecular structures has been reviewed, starting with the simplest two-centre symmetric systems (9Be and A=10 nuclei), then discussing the ...possibility of three-centre molecular states in carbon isotopes 13,14C and finally giving experimental results for asymmetric cluster and molecular structures in oxygen isotopes 17–20O.
Double Sided Silicon Strip Detectors (DSSSDs) are segmented silicon detectors widely used for the detection of charged particles. When a particle hits the inter-strip gap between two adjacent strips, ...energy measurement can be affected by different effects reducing the efficiency of output signal generation. With the purpose to study this behaviour, an experiment was performed at the scanning proton micro-beam facility of the Ruđer Bošković Institute (RBI). Response of two detectors of thickness 75 and 998 µm is examined as a function of the beam impact position and bias voltage. Results show that the effective width of the inter-strip gap, which is linked to the efficiency for full energy detection, depends on the experimental conditions and detector settings.
For the first time in an application to nuclear astrophysics, a process induced by the unstable 5He = (4He-n) nucleus, the 3He+5He→2α reaction, has been studied through the Trojan Horse Method (THM). ...For that purpose, the quasi-free (QF) contribution of the 9Be(3He,αα)4He reaction was selected at E3 He =4 MeV incident energy. The reaction was studied in a kinematically complete experiment following a recent publication, where for the quasi free contribution the momentum distribution between α and 5He particle cluster in the 9Be nucleus in the ground state have been extracted. The angular distribution of the QF 3He+5He→2α reaction was measured at θcm = 78°–115°. The energy dependence of the differential cross section of the 3He+5He→2α virtual reaction was extracted in the energy range Ecm = 0–650 keV. In conclusion, the total cross section obtained from the Trojan-horse method was normalized to absolute cross sections from a theoretical calculation in the energy range Ecm =300–620 keV.
The
10
B+
10
B reactions are measured at beam energies of 50 and 72.2 MeV. The large spin of
10
B nucleus (
J
ύ
= 3
+
) makes this reaction particularly suitable to populate high spin states in the ...exit channels. Population and decay of different states in
A
≈10 mass region is studied, and the results are discussed from the structure point of view. In particular, a new state in
12
C at
E
x
= 24.4 MeV is observed to be strongly populated in the triple
α
-particle coincidences.
Double Sided Silicon Strip Detectors (DSSSDs) are segmented silicon detectors widely used for the detection of charged particles. When a particle hits the inter-strip gap between two adjacent strips, ...energy measurement can be affected by different effects reducing the efficiency of output signal generation. With the purpose to study this behaviour, an experiment was performed at the scanning proton micro-beam facility of the Ruder Boskovic Institute (RBI). Response of two detectors of thickness 75 and 998 mu m is examined as a function of the beam impact position and bias voltage. Results show that the effective width of the inter-strip gap, which is linked to the efficiency for full energy detection, depends on the experimental conditions and detector settings.
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