Update on <sup>12</sup>O(g.s.) width for simultaneous 2p decay

Fortune, H. T.; Sherr, R.

doi:10.1088/0954-3899/40/5/055102

Cited by 10 publications

(2 citation statements)

References 14 publications

(38 reference statements)

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“…corresponds to a Breit-Wigner resonance having a centroid of Q 2p =1.688 (29) MeV and an intrinsic width of Γ=51 (19) keV. This experimental Q 2p value is slightly larger than the value of 1.638 (24) MeV from a previous invariant-mass study [9], but still smaller than the values of 1.783(48), 1.760 (24), and 1.740 (22) MeV obtained from the 12 C(π + ,π − ) reactions [34]. Our calculations give Q 2p =1.97 MeV and Γ=120 keV, which is in reasonable agreement with experiment.…”

Section: Fig 1 Spectrum Of Total Energycontrasting

confidence: 51%

First Observation of Unbound O11 , the Mirror of the Halo Nucleus Li
Webb¹,
Wang²,
Brown³
et al. 2019
Phys. Rev. Lett.
44
5
39
0
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The structure of the extremely proton-rich nucleus 11 8 O3, the mirror of the two-neutron halo nucleus 11 3 Li8, has been studied experimentally for the first time. Following two-neutron knockout reactions with a 13 O beam, the 11 O decay products were detected after two-proton emission and used to construct an invariant-mass spectrum. A broad peak of width ∼3 MeV was observed. Within the Gamow coupled-channel approach, it was concluded that this peak is a multiplet with contributions from the four-lowest 11 O resonant states: J π =3/2 − 1 , 3/2 − 2 , 5/2 + 1 , and 5/2 + 2. The widths and configurations of these states show strong, non-monotonic dependencies on the depth of the p-9 C potential. This unusual behavior is due to the presence of a broad threshold resonant state in 10 N, which is an analog of the virtual state in 10 Li in the presence of the Coulomb potential. After optimizing the model to the data, only a moderate isospin asymmetry between ground states of 11 O and 11 Li was found.

show abstract

Section: Fig 1 Spectrum Of Total Energycontrasting

confidence: 51%

First Observation of Unbound O11 , the Mirror of the Halo Nucleus Li
Webb¹,
Wang²,
Brown³
et al. 2019
Phys. Rev. Lett.
44
5
39
0
View full text Add to dashboard Cite

show abstract

“…corresponds to a Breit-Wigner resonance having a centroid of Q 2p =1.688 (29) MeV and an intrinsic width of Γ=51 (19) keV. This experimental Q 2p value is slightly larger than the value of 1.638 (24) MeV from a previous invariant-mass study [9], but still smaller than the values of 1.783(48), 1.760 (24), and 1.740 (22) MeV obtained from the 12 C(π + ,π − ) reactions [33]. Our calculations give Q 2p =1.97 MeV and Γ=120 keV, which is in reasonable agreement with experiment.…”

contrasting

confidence: 51%

First observation of unbound $^{11}$O, the mirror of the halo nucleus $^{11}$Li

Webb,

Wang,

Brown

et al. 2018

Preprint

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The structure of the extremely proton-rich nucleus 11 8 O3, the mirror of the two-neutron halo nucleus 11 3 Li8, has been studied experimentally for the first time. Following two-neutron knockout reactions with a 13 O beam, the 11 O decay products were detected after two-proton emission and used to construct an invariant-mass spectrum. A broad peak of width 3.4 MeV was observed. Within the Gamow coupled-channel approach, it was concluded that this peak is a multiplet with contributions from the four-lowest 11 O resonant states: J π =3/2 − 1 , 3/2 − 2 , 5/2 + 1 , and 5/2 + 2 . The widths and configurations of these states show strong, non-monotonic dependencies on the depth of the p-9 C potential. This unusual behavior is due to the presence of a broad threshold resonant state in 10 N, which is an analog of the virtual state in 10 Li in the presence of the Coulomb potential. After optimizing the model to the data, only a moderate isospin asymmetry between ground states of 11 O and 11 Li was found.

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Energy levels of light nuclei A= 12

2017

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Update on ¹²O(g.s.) width for simultaneous 2p decay

Abstract: We update information concerning the width of the ground state of 12 O, and correct a small error in our earlier evaluation.

Cited by 10 publications

References 14 publications

First Observation of Unbound O11 , the Mirror of the Halo Nucleus Li
Webb¹,
Wang²,
Brown³
et al. 2019
Phys. Rev. Lett.
44
5
39
0
View full text Add to dashboard Cite

First Observation of Unbound O11 , the Mirror of the Halo Nucleus Li
Webb¹,
Wang²,
Brown³
et al. 2019
Phys. Rev. Lett.
44
5
39
0
View full text Add to dashboard Cite

First observation of unbound $^{11}$O, the mirror of the halo nucleus $^{11}$Li

Energy levels of light nuclei A= 12

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Update on 12O(g.s.) width for simultaneous 2p decay

Abstract: We update information concerning the width of the ground state of 12 O, and correct a small error in our earlier evaluation.

Cited by 10 publications

References 14 publications

First Observation of Unbound O11 , the Mirror of the Halo Nucleus LiWebb1, Wang2, Brown3 et al. 2019Phys. Rev. Lett.445390View full textAdd to dashboardCite

First Observation of Unbound O11 , the Mirror of the Halo Nucleus LiWebb1, Wang2, Brown3 et al. 2019Phys. Rev. Lett.445390View full textAdd to dashboardCite

First observation of unbound $^{11}$O, the mirror of the halo nucleus $^{11}$Li

Energy levels of light nuclei A= 12

Contact Info

Product

Resources

About

Update on ¹²O(g.s.) width for simultaneous 2p decay

First Observation of Unbound O11 , the Mirror of the Halo Nucleus Li
Webb¹,
Wang²,
Brown³
et al. 2019
Phys. Rev. Lett.
44
5
39
0
View full text Add to dashboard Cite

First Observation of Unbound O11 , the Mirror of the Halo Nucleus Li
Webb¹,
Wang²,
Brown³
et al. 2019
Phys. Rev. Lett.
44
5
39
0
View full text Add to dashboard Cite