Double isobaric analog of Li-11 in B-11

R. J. Charity; L. G. Sobotka; K. Hagino; D. Bazin; M. A. Famiano; A. Gade; S. Hudan; S. A. Komarov; Jenny Lee; S. P. Lobastov; S. M. Lukyanov; W. G. Lynch; C. Metelko; M. Mocko; A. M. Rogers; H. Sagawa; A. Sanetullaev; M. B. Tsang; M. S. Wallace; M. J. van Goethem; A. H. Wuosmaa

doi:10.1103/PhysRevC.86.041307

Double isobaric analog of Li-11 in B-11

R. J. Charity^*, L. G. Sobotka, K. Hagino, D. Bazin, M. A. Famiano, A. Gade, S. Hudan, S. A. Komarov, Jenny Lee, S. P. Lobastov, S. M. Lukyanov, W. G. Lynch, C. Metelko, M. Mocko, A. M. Rogers, H. Sagawa, A. Sanetullaev, M. B. Tsang, M. S. Wallace, M. J. van GoethemA. H. Wuosmaa

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

12 Citations (Scopus)

Abstract

The ground state of Li-11 is the preeminent example of a two-neutron-halo nucleus and is part of an isobaric sextet. Another member of this sextet, the double isobaric analog of Li-11(g.s). in B-11, has been identified in the Be-12(p, 2n)B-11 reaction. The state was discovered through its two-proton decay branch. From detected 2p + Li-9 events, its excitation energy was determined to be 33.57(8) MeV using the invariant mass method. With the known masses of Li-11 and its isobaric analog state in Be-11, three members of the same sextet have measured masses for the first time, permitting the masses of the remaining members to be extrapolated using the isobaric multiplet mass equation. All members of this multiplet are expected to have a two-nucleon halo structure and this was found consistent with the evolution of the mass across the sextet. The momentum correlations of the detected protons were found to have both "diproton" and "cigar" components.

Original language	English
Article number	041307
Number of pages	5
Journal	Physical Review C
Volume	86
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.86.041307
Publication status	Published - 31-Oct-2012

Keywords

HALO
NUCLEI
STATES

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Double isobaric analog of Li-11 in B-11
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Charity, R. J., Sobotka, L. G., Hagino, K., Bazin, D., Famiano, M. A., Gade, A., Hudan, S., Komarov, S. A., Lee, J., Lobastov, S. P., Lukyanov, S. M., Lynch, W. G., Metelko, C., Mocko, M., Rogers, A. M., Sagawa, H., Sanetullaev, A., Tsang, M. B., Wallace, M. S., ... Wuosmaa, A. H. (2012). Double isobaric analog of Li-11 in B-11. Physical Review C, 86(4), [041307]. https://doi.org/10.1103/PhysRevC.86.041307

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title = "Double isobaric analog of Li-11 in B-11",

abstract = "The ground state of Li-11 is the preeminent example of a two-neutron-halo nucleus and is part of an isobaric sextet. Another member of this sextet, the double isobaric analog of Li-11(g.s). in B-11, has been identified in the Be-12(p, 2n)B-11 reaction. The state was discovered through its two-proton decay branch. From detected 2p + Li-9 events, its excitation energy was determined to be 33.57(8) MeV using the invariant mass method. With the known masses of Li-11 and its isobaric analog state in Be-11, three members of the same sextet have measured masses for the first time, permitting the masses of the remaining members to be extrapolated using the isobaric multiplet mass equation. All members of this multiplet are expected to have a two-nucleon halo structure and this was found consistent with the evolution of the mass across the sextet. The momentum correlations of the detected protons were found to have both {"}diproton{"} and {"}cigar{"} components.",

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author = "Charity, {R. J.} and Sobotka, {L. G.} and K. Hagino and D. Bazin and Famiano, {M. A.} and A. Gade and S. Hudan and Komarov, {S. A.} and Jenny Lee and Lobastov, {S. P.} and Lukyanov, {S. M.} and Lynch, {W. G.} and C. Metelko and M. Mocko and Rogers, {A. M.} and H. Sagawa and A. Sanetullaev and Tsang, {M. B.} and Wallace, {M. S.} and {van Goethem}, {M. J.} and Wuosmaa, {A. H.}",

year = "2012",

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doi = "10.1103/PhysRevC.86.041307",

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Charity, RJ, Sobotka, LG, Hagino, K, Bazin, D, Famiano, MA, Gade, A, Hudan, S, Komarov, SA, Lee, J, Lobastov, SP, Lukyanov, SM, Lynch, WG, Metelko, C, Mocko, M, Rogers, AM, Sagawa, H, Sanetullaev, A, Tsang, MB, Wallace, MS, van Goethem, MJ & Wuosmaa, AH 2012, 'Double isobaric analog of Li-11 in B-11', Physical Review C, vol. 86, no. 4, 041307. https://doi.org/10.1103/PhysRevC.86.041307

TY - JOUR

T1 - Double isobaric analog of Li-11 in B-11

AU - Charity, R. J.

AU - Sobotka, L. G.

AU - Hagino, K.

AU - Bazin, D.

AU - Famiano, M. A.

AU - Gade, A.

AU - Hudan, S.

AU - Komarov, S. A.

AU - Lee, Jenny

AU - Lobastov, S. P.

AU - Lukyanov, S. M.

AU - Lynch, W. G.

AU - Metelko, C.

AU - Mocko, M.

AU - Rogers, A. M.

AU - Sagawa, H.

AU - Sanetullaev, A.

AU - Tsang, M. B.

AU - Wallace, M. S.

AU - van Goethem, M. J.

AU - Wuosmaa, A. H.

PY - 2012/10/31

Y1 - 2012/10/31

N2 - The ground state of Li-11 is the preeminent example of a two-neutron-halo nucleus and is part of an isobaric sextet. Another member of this sextet, the double isobaric analog of Li-11(g.s). in B-11, has been identified in the Be-12(p, 2n)B-11 reaction. The state was discovered through its two-proton decay branch. From detected 2p + Li-9 events, its excitation energy was determined to be 33.57(8) MeV using the invariant mass method. With the known masses of Li-11 and its isobaric analog state in Be-11, three members of the same sextet have measured masses for the first time, permitting the masses of the remaining members to be extrapolated using the isobaric multiplet mass equation. All members of this multiplet are expected to have a two-nucleon halo structure and this was found consistent with the evolution of the mass across the sextet. The momentum correlations of the detected protons were found to have both "diproton" and "cigar" components.

AB - The ground state of Li-11 is the preeminent example of a two-neutron-halo nucleus and is part of an isobaric sextet. Another member of this sextet, the double isobaric analog of Li-11(g.s). in B-11, has been identified in the Be-12(p, 2n)B-11 reaction. The state was discovered through its two-proton decay branch. From detected 2p + Li-9 events, its excitation energy was determined to be 33.57(8) MeV using the invariant mass method. With the known masses of Li-11 and its isobaric analog state in Be-11, three members of the same sextet have measured masses for the first time, permitting the masses of the remaining members to be extrapolated using the isobaric multiplet mass equation. All members of this multiplet are expected to have a two-nucleon halo structure and this was found consistent with the evolution of the mass across the sextet. The momentum correlations of the detected protons were found to have both "diproton" and "cigar" components.

KW - HALO

KW - NUCLEI

KW - STATES

U2 - 10.1103/PhysRevC.86.041307

DO - 10.1103/PhysRevC.86.041307

M3 - Article

VL - 86

JO - Physical Review C

JF - Physical Review C

SN - 0556-2813

IS - 4

M1 - 041307

ER -