Study of unbound levels inC10viaB

Abstract

The unbound level structure of C has been studied using the 'OB(3He, t)' C reaction. Bombarding energy was 38.2 MeV and tritons were detected in an energy-loss spectrometer. In the seven spectra taken, at lab angl. es from 2, 5' to 30', the broad 6.60 MeV prominence was well fitted by a single Lorentzian-shaped peak, while the 5.28 MeV region was well fitted by two peaks. The excitation energies of these peaks were obtained using known levels in C, populated from the B impurity in the 8 target.NUCI EAR REACTIONS~oB(He, t); E=28.2 MeV; deduced level structure in broad peaks by fitting spectra; measured E", I' of levels found.In conjunction with a study of "Be via 9Be(d, P), '

Correlated two-proton decay fromC10

“…. This confirms the original claim by Schneider et al [27] that this structure is at least a doublet. The higher-energy component (5.30 MeV) implies a state that proton decays through the tail of the wide 9 B 1st (not truly sequential as the intermediate has a width comparable to the decay energy), "pseudo" two-body with some 2p correlation, or by uniformly sampling the three-body phase space.…”

Level structure of10C

“…The energy of the cluster 0 The narrowest resonance in the 5. [16] presented a more detailed information on the 10 C states in question than the former experiments, there is an evident difference at 5.38 MeV where a peak with width of 300(60) keV was reported in 10 B( 3 He, 3 H) reaction [21]. The excitation energy and width of this peak are close to our calculations for the 2 − state.…”

Breakup reaction study of the Brunnian nucleusC10

“…The removal of a proton from 10 C leads to 9 B, which is unbound to 8 Be + p decay by 185 keV. The removal of an α particle produces 6 Be. Although the Q value for 5 Li + p decay is −595 keV, 6 Be is unbound to this channel due to the ∼1.5 MeV width of the 5 Li ground state.…”

“…The removal of an α particle produces 6 Be. Although the Q value for 5 Li + p decay is −595 keV, 6 Be is unbound to this channel due to the ∼1.5 MeV width of the 5 Li ground state. In addition, the removal of any two particles from 10 C results in an unbound two-body system.…”

“…The breakup kinematics were used to reconstruct the 10 C → 9 B +p, 9 B → 8 Be +p, 8 Be → α + α and 10 C → 6 Be +α, 6 Be → 5 Li +p, 5 Li → α + p decay paths. Proton emission was seen to be favored.…”