Identification of the 10Li ground state

Chartier, M.; Beene, J. R.; Blank, Β.; Chen, L; Galonsky, A.; Gan, N.; Govaert, K.; Hansen, P. G.; Kruse, J.; Maddalena, V.; Thoennessen, M.; Varner, R. L.

doi:10.1016/s0370-2693(01)00602-5

Cited by 40 publications

(34 citation statements)

References 17 publications

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“…It is clearly seen that the contribution of the s 1/2 wave is essential to describe the low energy part of the spectrum. Therefore, our calculations clearly support the existence of a low-lying virtual state, as found by other authors [15,17,20,22]. As for the p 1/2 contribution (thin solid line in Fig.…”

Section: Calculations and Comparison With Experimental Resultssupporting

confidence: 91%

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Study of 10Li via the 9Li(2H, p) reaction at REX-ISOLDE

Jeppesen¹,

Moro²,

Bergmann³

et al. 2006

Physics Letters B

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The 9 Li + 2 H reaction has been investigated at 2.36 MeV/u at the REX-ISOLDE facility. In this Letter we focus on the 10 Li + p channel which potentially holds spectroscopic information on the unbound nucleus 10 Li. The experimental excitation energy spectrum and angular distribution are compared with CCBA calculations. These calculations clearly support the existence of a low-lying (s) virtual state, with a (negative) scattering length of the order a s ∼ 13-24 fm and a p 1/2 resonance with an energy of E r 0.38 MeV and a width of Γ 0.2 MeV.

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Section: Calculations and Comparison With Experimental Resultssupporting

confidence: 91%

“…This corresponds to a virtual s-wave potential state around |E s | = 22-76 keV with a (negative) scattering length of magnitude |a s | = 13-24 fm (see Fig. 1) in good agreement with [20,22]. For V s > 100 MeV the cross section grows rapidly at zero energy, in contrast to the observed behavior.…”

Section: Calculations and Comparison With Experimental Resultssupporting

confidence: 55%

Study of 10Li via the 9Li(2H, p) reaction at REX-ISOLDE

Jeppesen¹,

Moro²,

Bergmann³

et al. 2006

Physics Letters B

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“…The detailed analysis of the dipole states would be shown in the forthcoming paper. For 10 Li, the present model successfully produces −17.4 fm for the scattering length of the 2 − state in the 9 Li+n system as a signature of a virtual sstate [19,20,21]. The 1 − state gives −5.6 fm, not so large negative value.…”

Section: LImentioning

confidence: 70%

“…The halo structure of 11 Li is also related with the 1s-state and the 0p-state in 10 Li. Several experiments suggest that the dual states of the s 1/2 -state coupled to the 3/2 − proton state appear close to the threshold energy of 9 Li+n together with the dual states of the p 1/2 -state [19,20,21]. This property is known as the inversion problem of s-and p-states seen in the N = 7 isotone [20].…”

mentioning

confidence: 99%

Roles of tensor and pairing correlations on halo formation inLi11

Myo¹,

Katō

Toki³

et al. 2007

Phys. Rev. C

111

183

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We study the roles of the tensor and pairing correlations on the halo formation in 11 Li with an extended 9 Li+n+n model. We first solve the ground state of 9 Li in the shell model basis by taking 2p-2h states using the Gaussian functions with variational size parameters to take into account the tensor correlation fully. In 11 Li, the tensor and pairing correlations in 9 Li are Pauli-blocked by additional two neutrons, which work coherently to make the configurations containing the 0p 1/2 state pushed up and close to those containing the 1s 1/2 state. Hence, the pairing interaction works efficiently to mix the two configurations by equal amount and develop the halo structure in 11 Li. For 10 Li, the inversion phenomenon of s-and p-states is reproduced in the same framework. Our model furthermore explains the recently observed Coulomb breakup strength and charge radius for 11 Li.

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“…This placed the first measured unbound state at 0.8 ± 0.25 MeV decay energy [8]. The next measurement was made 15 years later [9] and since then, there have been many measurements of energies of the continuum structure of 10 Li [4,5,[10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]34].…”

mentioning

confidence: 99%

Selective population of unbound states in 10Li

et al. 2015

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Unbound positive-parity states in 10 Li have been populated with a two-proton removal reaction from a 71 MeV/u 12 B beam. The 9 Li fragments and emitted neutrons were measured with the MoNA-LISASweeper setup. The measured decay energy spectrum was best fit with three states at 110 ± 40, 500 ± 100, and 1100 ± 100 keV decay energy. This is the second observation of a resonance below 200 keV. The lower two states likely belong to the expected 1 + , 2 + doublet.

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Identification of the 10Li ground state

Cited by 40 publications

References 17 publications

Study of 10Li via the 9Li(2H, p) reaction at REX-ISOLDE

Study of 10Li via the 9Li(2H, p) reaction at REX-ISOLDE

Roles of tensor and pairing correlations on halo formation inLi11

Selective population of unbound states in 10Li

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