Coulomb excitation of the proton-dripline nucleus Na20

M. A. Schumaker; D. Cline; G. Hackman; C. J. Pearson; C. E. Svensson; C. Y. Wu; A. Andreyev; R. A.E. Austin; G. C. Ball; D. Bandyopadhyay; J. A. Becker; A. J. Boston; H. C. Boston; L. Buchmann; R. Churchman; F. Cifarelli; R. J. Cooper; D. S. Cross; D. Dashdorj; G. A. Demand; M. R. Dimmock; T. E. Drake; P. Finlay; A. T. Gallant; P. E. Garrett; K. L. Green; A. N. Grint; G. F. Grinyer; L. J. Harkness; A. B. Hayes; R. Kanungo; A. F. Lisetskiy; K. G. Leach; G. Lee; R. Maharaj; J. P. Martin; F. Moisan; A. C. Morton; S. Mythili; L. Nelson; O. Newman; P. J. Nolan; J. N. Orce; E. Padilla-Rodal; A. A. Phillips; M. Porter-Peden; J. J. Ressler; R. Roy; C. Ruiz; F. Sarazin; D. P. Scraggs; J. C. Waddington; J. M. Wan; A. Whitbeck; S. J. Williams; J. Wong

doi:10.1103/PhysRevC.80.044325

Coulomb excitation of the proton-dripline nucleus Na20

M. A. Schumaker, D. Cline, G. Hackman, C. J. Pearson, C. E. Svensson, C. Y. Wu, A. Andreyev, R. A.E. Austin, G. C. Ball, D. Bandyopadhyay, J. A. Becker, A. J. Boston, H. C. Boston, L. Buchmann, R. Churchman, F. Cifarelli, R. J. Cooper, D. S. Cross, D. Dashdorj, G. A. DemandM. R. Dimmock, T. E. Drake, P. Finlay, A. T. Gallant, P. E. Garrett, K. L. Green, A. N. Grint, G. F. Grinyer, L. J. Harkness, A. B. Hayes, R. Kanungo, A. F. Lisetskiy, K. G. Leach, G. Lee, R. Maharaj, J. P. Martin, F. Moisan, A. C. Morton, S. Mythili, L. Nelson, O. Newman, P. J. Nolan, J. N. Orce, E. Padilla-Rodal, A. A. Phillips, M. Porter-Peden, J. J. Ressler, R. Roy, C. Ruiz, F. Sarazin, D. P. Scraggs, J. C. Waddington, J. M. Wan, A. Whitbeck, S. J. Williams, J. Wong

Physics

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Abstract

The low-energy structure of the proton dripline nucleus Na20 has been studied using Coulomb excitation at the TRIUMF-ISAC radioactive ion beam facility. A 1.7-MeV/nucleon Na20 beam of ~5×106 ions/s was Coulomb excited by a 0.5-mg/cm2 natTi target. Scattered beam and target particles were detected by the BAMBINO segmented Si detector while γ rays were detected by two TIGRESS HPGe clover detectors set perpendicular to the beam axis. Coulomb excitation from the 2+ ground state to the first excited 3+ and 4+ states was observed, and B(λL) values were determined using the 2+→0+ de-excitation in Ti48 as a reference. The resulting B(λL) values are B(E2;3+→2+)=55±6 e2fm4 (17.0±1.9 W.u.), B(E2;4+→2+)=35. 7±5.7 e2fm4 (11.1±1.8 W.u.), and B(M1;4+→3+)=0.154±0. 030 μN2 (0.086±0.017 W.u.). These measurements provide the first experimental determination of B(λL) values for this proton dripline nucleus of astrophysical interest.

Original language	English
Article number	044325
Journal	Physical Review C - Nuclear Physics
Volume	80
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.80.044325
State	Published - Oct 22 2009

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Schumaker, M. A., Cline, D., Hackman, G., Pearson, C. J., Svensson, C. E., Wu, C. Y., Andreyev, A., Austin, R. A. E., Ball, G. C., Bandyopadhyay, D., Becker, J. A., Boston, A. J., Boston, H. C., Buchmann, L., Churchman, R., Cifarelli, F., Cooper, R. J., Cross, D. S., Dashdorj, D., ... Wong, J. (2009). Coulomb excitation of the proton-dripline nucleus Na20. Physical Review C - Nuclear Physics, 80(4), Article 044325. https://doi.org/10.1103/PhysRevC.80.044325

@article{395400b4301b4ea6a7f3c93be7466df4,

title = "Coulomb excitation of the proton-dripline nucleus Na20",

abstract = "The low-energy structure of the proton dripline nucleus Na20 has been studied using Coulomb excitation at the TRIUMF-ISAC radioactive ion beam facility. A 1.7-MeV/nucleon Na20 beam of ~5×106 ions/s was Coulomb excited by a 0.5-mg/cm2 natTi target. Scattered beam and target particles were detected by the BAMBINO segmented Si detector while γ rays were detected by two TIGRESS HPGe clover detectors set perpendicular to the beam axis. Coulomb excitation from the 2+ ground state to the first excited 3+ and 4+ states was observed, and B(λL) values were determined using the 2+→0+ de-excitation in Ti48 as a reference. The resulting B(λL) values are B(E2;3+→2+)=55±6 e2fm4 (17.0±1.9 W.u.), B(E2;4+→2+)=35. 7±5.7 e2fm4 (11.1±1.8 W.u.), and B(M1;4+→3+)=0.154±0. 030 μN2 (0.086±0.017 W.u.). These measurements provide the first experimental determination of B(λL) values for this proton dripline nucleus of astrophysical interest.",

author = "Schumaker, {M. A.} and D. Cline and G. Hackman and Pearson, {C. J.} and Svensson, {C. E.} and Wu, {C. Y.} and A. Andreyev and Austin, {R. A.E.} and Ball, {G. C.} and D. Bandyopadhyay and Becker, {J. A.} and Boston, {A. J.} and Boston, {H. C.} and L. Buchmann and R. Churchman and F. Cifarelli and Cooper, {R. J.} and Cross, {D. S.} and D. Dashdorj and Demand, {G. A.} and Dimmock, {M. R.} and Drake, {T. E.} and P. Finlay and Gallant, {A. T.} and Garrett, {P. E.} and Green, {K. L.} and Grint, {A. N.} and Grinyer, {G. F.} and Harkness, {L. J.} and Hayes, {A. B.} and R. Kanungo and Lisetskiy, {A. F.} and Leach, {K. G.} and G. Lee and R. Maharaj and Martin, {J. P.} and F. Moisan and Morton, {A. C.} and S. Mythili and L. Nelson and O. Newman and Nolan, {P. J.} and Orce, {J. N.} and E. Padilla-Rodal and Phillips, {A. A.} and M. Porter-Peden and Ressler, {J. J.} and R. Roy and C. Ruiz and F. Sarazin and Scraggs, {D. P.} and Waddington, {J. C.} and Wan, {J. M.} and A. Whitbeck and Williams, {S. J.} and J. Wong",

year = "2009",

month = oct,

day = "22",

doi = "10.1103/PhysRevC.80.044325",

language = "English",

volume = "80",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "4",

}

Schumaker, MA, Cline, D, Hackman, G, Pearson, CJ, Svensson, CE, Wu, CY, Andreyev, A, Austin, RAE, Ball, GC, Bandyopadhyay, D, Becker, JA, Boston, AJ, Boston, HC, Buchmann, L, Churchman, R, Cifarelli, F, Cooper, RJ, Cross, DS, Dashdorj, D, Demand, GA, Dimmock, MR, Drake, TE, Finlay, P, Gallant, AT, Garrett, PE, Green, KL, Grint, AN, Grinyer, GF, Harkness, LJ, Hayes, AB, Kanungo, R, Lisetskiy, AF, Leach, KG, Lee, G, Maharaj, R, Martin, JP, Moisan, F, Morton, AC, Mythili, S, Nelson, L, Newman, O, Nolan, PJ, Orce, JN, Padilla-Rodal, E, Phillips, AA, Porter-Peden, M, Ressler, JJ, Roy, R, Ruiz, C, Sarazin, F, Scraggs, DP, Waddington, JC, Wan, JM, Whitbeck, A, Williams, SJ & Wong, J 2009, 'Coulomb excitation of the proton-dripline nucleus Na20', Physical Review C - Nuclear Physics, vol. 80, no. 4, 044325. https://doi.org/10.1103/PhysRevC.80.044325

TY - JOUR

T1 - Coulomb excitation of the proton-dripline nucleus Na20

AU - Schumaker, M. A.

AU - Cline, D.

AU - Hackman, G.

AU - Pearson, C. J.

AU - Svensson, C. E.

AU - Wu, C. Y.

AU - Andreyev, A.

AU - Austin, R. A.E.

AU - Ball, G. C.

AU - Bandyopadhyay, D.

AU - Becker, J. A.

AU - Boston, A. J.

AU - Boston, H. C.

AU - Buchmann, L.

AU - Churchman, R.

AU - Cifarelli, F.

AU - Cooper, R. J.

AU - Cross, D. S.

AU - Dashdorj, D.

AU - Demand, G. A.

AU - Dimmock, M. R.

AU - Drake, T. E.

AU - Finlay, P.

AU - Gallant, A. T.

AU - Garrett, P. E.

AU - Green, K. L.

AU - Grint, A. N.

AU - Grinyer, G. F.

AU - Harkness, L. J.

AU - Hayes, A. B.

AU - Kanungo, R.

AU - Lisetskiy, A. F.

AU - Leach, K. G.

AU - Lee, G.

AU - Maharaj, R.

AU - Martin, J. P.

AU - Moisan, F.

AU - Morton, A. C.

AU - Mythili, S.

AU - Nelson, L.

AU - Newman, O.

AU - Nolan, P. J.

AU - Orce, J. N.

AU - Padilla-Rodal, E.

AU - Phillips, A. A.

AU - Porter-Peden, M.

AU - Ressler, J. J.

AU - Roy, R.

AU - Ruiz, C.

AU - Sarazin, F.

AU - Scraggs, D. P.

AU - Waddington, J. C.

AU - Wan, J. M.

AU - Whitbeck, A.

AU - Williams, S. J.

AU - Wong, J.

PY - 2009/10/22

Y1 - 2009/10/22

N2 - The low-energy structure of the proton dripline nucleus Na20 has been studied using Coulomb excitation at the TRIUMF-ISAC radioactive ion beam facility. A 1.7-MeV/nucleon Na20 beam of ~5×106 ions/s was Coulomb excited by a 0.5-mg/cm2 natTi target. Scattered beam and target particles were detected by the BAMBINO segmented Si detector while γ rays were detected by two TIGRESS HPGe clover detectors set perpendicular to the beam axis. Coulomb excitation from the 2+ ground state to the first excited 3+ and 4+ states was observed, and B(λL) values were determined using the 2+→0+ de-excitation in Ti48 as a reference. The resulting B(λL) values are B(E2;3+→2+)=55±6 e2fm4 (17.0±1.9 W.u.), B(E2;4+→2+)=35. 7±5.7 e2fm4 (11.1±1.8 W.u.), and B(M1;4+→3+)=0.154±0. 030 μN2 (0.086±0.017 W.u.). These measurements provide the first experimental determination of B(λL) values for this proton dripline nucleus of astrophysical interest.

AB - The low-energy structure of the proton dripline nucleus Na20 has been studied using Coulomb excitation at the TRIUMF-ISAC radioactive ion beam facility. A 1.7-MeV/nucleon Na20 beam of ~5×106 ions/s was Coulomb excited by a 0.5-mg/cm2 natTi target. Scattered beam and target particles were detected by the BAMBINO segmented Si detector while γ rays were detected by two TIGRESS HPGe clover detectors set perpendicular to the beam axis. Coulomb excitation from the 2+ ground state to the first excited 3+ and 4+ states was observed, and B(λL) values were determined using the 2+→0+ de-excitation in Ti48 as a reference. The resulting B(λL) values are B(E2;3+→2+)=55±6 e2fm4 (17.0±1.9 W.u.), B(E2;4+→2+)=35. 7±5.7 e2fm4 (11.1±1.8 W.u.), and B(M1;4+→3+)=0.154±0. 030 μN2 (0.086±0.017 W.u.). These measurements provide the first experimental determination of B(λL) values for this proton dripline nucleus of astrophysical interest.

UR - http://www.scopus.com/inward/record.url?scp=70449416796&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.80.044325

DO - 10.1103/PhysRevC.80.044325

M3 - Article

AN - SCOPUS:70449416796

SN - 0556-2813

VL - 80

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 044325

ER -

Coulomb excitation of the proton-dripline nucleus Na20

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