Sequential decay reactions induced by a 18 MeV 6He beam on 6Li and 7Li

Milin, Matko; Задро, М.; Cherubini, S.; Davinson, T.; Pietro, A. Di; Фігуера, П.; Miljanić, Đuro; Musumarra, A.; Ninane, A.; Ostrowski, A. N.; Pellegriti, M. G.; Shotter, A. C.; Soić, N.; Spitaleri, C.

doi:10.1016/j.nuclphysa.2005.02.154

Cited by 62 publications

(73 citation statements)

References 78 publications

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“…We note that the spin-parity of the 10.15-MeV state remains somewhat controversial. It was first found to be 3 − [4,5], but two more recent measurements [6,7] both favor a 4 + assignment.…”

Section: Introductionmentioning

confidence: 99%

“…Related to this is the unusually large α width of the 7.54-MeV state [6,8], which exceeds the Wigner limit [9] by a factor of ∼50. 1 The enhanced separation of the two α clusters may partially explain the large α width since it results in a lowering of the centrifugal and Coulomb barriers, which inhibit the decay very strongly because the 7.54-MeV state is located only 129 keV above the α + 6 He threshold; see, e.g., the analysis of Ref.…”

Section: Introductionmentioning

confidence: 99%

“…[11], the 10.15-MeV state in 10 Be exhibits peculiar decay properties. While particle unbound states in 10 Be usually decay by neutron emission, the 10.15-MeV state has only been observed to decay by α emission [6,7,12,13]. It has a very large α width comparable to the Wigner limit [7], and it decays both to the 0 + ground state and the 2 + first-excited state in 6 He [13].…”

Section: Introductionmentioning

confidence: 99%

“…While particle unbound states in 10 Be usually decay by neutron emission, the 10.15-MeV state has only been observed to decay by α emission [6,7,12,13]. It has a very large α width comparable to the Wigner limit [7], and it decays both to the 0 + ground state and the 2 + first-excited state in 6 He [13]. One may reasonably assume similar decay properties for the analog state in 10 B, i.e., the decay should be dominated by α emission to the 0 + and 2 + , T = 1 states in 6 Li located at 3.56 and 5.37 MeV, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…It has a very large α width comparable to the Wigner limit [7], and it decays both to the 0 + ground state and the 2 + first-excited state in 6 He [13]. One may reasonably assume similar decay properties for the analog state in 10 B, i.e., the decay should be dominated by α emission to the 0 + and 2 + , T = 1 states in 6 Li located at 3.56 and 5.37 MeV, respectively. Indeed, a recent conference proceedings paper [14] reports a state at ∼11.3 MeV, populated in the reaction 3 He + 11 B → α + 10 B, that decays by α emission to the 3.56-MeV state in 6 Li.…”

Section: Introductionmentioning

confidence: 99%

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Observation ofαdecay from a state in10B at 11.48 MeV

et al. 2012

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We report on the observation of α decay from a state in 10 B at 11.48 MeV. The only observed decay branch is to the first T = 1 state in 6 Li at 3.56 MeV. The apparent absence of an α-decay branch to the (T = 0) ground state in 6 Li suggests that the 11.48-MeV state should be assigned isospin T = 1. The spin and parity of the 11.48-MeV state could not be directly determined from the present study apart from J = 0 being ruled out by the observed angular correlation. We conjecture that the 11.48-MeV state is the analog of the 10.15-MeV, (4 + ) state in 10 Be, constitutes the third member of a rotational band built on the 0 + state at 7.65 MeV, and has pronounced molecular structure.

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Section: Introductionmentioning

confidence: 99%