Double-magic nature of Sn 132 and Pb 208 through lifetime and cross-section measurements

J. M. Allmond; A. E. Stuchbery; J. R. Beene; A. Galindo-Uribarri; J. F. Liang; E. Padilla-Rodal; D. C. Radford; R. L. Varner; A. Ayres; J. C. Batchelder; A. Bey; C. R. Bingham; M. E. Howard; K. L. Jones; B. Manning; P. E. Mueller; C. D. Nesaraja; S. D. Pain; W. A. Peters; A. Ratkiewicz; K. T. Schmitt; D. Shapira; M. S. Smith; N. J. Stone; D. W. Stracener; C. H. Yu

doi:10.1103/PhysRevLett.112.172701

Double-magic nature of Sn 132 and Pb 208 through lifetime and cross-section measurements

J. M. Allmond, A. E. Stuchbery, J. R. Beene, A. Galindo-Uribarri, J. F. Liang, E. Padilla-Rodal, D. C. Radford, R. L. Varner, A. Ayres, J. C. Batchelder, A. Bey, C. R. Bingham, M. E. Howard, K. L. Jones, B. Manning, P. E. Mueller, C. D. Nesaraja, S. D. Pain, W. A. Peters, A. RatkiewiczK. T. Schmitt, D. Shapira, M. S. Smith, N. J. Stone, D. W. Stracener, C. H. Yu

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Abstract

Single-neutron states in Sn133 and Pb209, which are analogous to single-electron states outside of closed atomic shells in alkali metals, were populated by the (Be9, Be8) one-neutron transfer reaction in inverse kinematics using particle-γ coincidence spectroscopy. In addition, the s1/2 single-neutron hole-state candidate in Sn131 was populated by (Be9, Be10). Doubly closed-shell Sn132 (radioactive) and Pb208 (stable) beams were used at sub-Coulomb barrier energies of 3 MeV per nucleon. Level energies, γ-ray transitions, absolute cross sections, spectroscopic factors, asymptotic normalization coefficients, and excited-state lifetimes are reported and compared with shell-model expectations. The results include a new transition and precise level energy for the 3p1/2 candidate in Sn133, new absolute cross sections for the 1h9/2 candidate in Sn133 and 3s1/2 candidate in Sn131, and new lifetimes for excited states in Sn133 and Pb209. This is the first report on excited-state lifetimes of Sn133, which allow for a unique test of the nuclear shell model and Sn132 double-shell closure.

Original language	English
Article number	172701
Journal	Physical Review Letters
Volume	112
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.112.172701
State	Published - Apr 30 2014

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Allmond, J. M., Stuchbery, A. E., Beene, J. R., Galindo-Uribarri, A., Liang, J. F., Padilla-Rodal, E., Radford, D. C., Varner, R. L., Ayres, A., Batchelder, J. C., Bey, A., Bingham, C. R., Howard, M. E., Jones, K. L., Manning, B., Mueller, P. E., Nesaraja, C. D., Pain, S. D., Peters, W. A., ... Yu, C. H. (2014). Double-magic nature of Sn 132 and Pb 208 through lifetime and cross-section measurements. Physical Review Letters, 112(17), Article 172701. https://doi.org/10.1103/PhysRevLett.112.172701

@article{c7e13374556c4b5eab588b34e6db7948,

title = "Double-magic nature of Sn 132 and Pb 208 through lifetime and cross-section measurements",

abstract = "Single-neutron states in Sn133 and Pb209, which are analogous to single-electron states outside of closed atomic shells in alkali metals, were populated by the (Be9, Be8) one-neutron transfer reaction in inverse kinematics using particle-γ coincidence spectroscopy. In addition, the s1/2 single-neutron hole-state candidate in Sn131 was populated by (Be9, Be10). Doubly closed-shell Sn132 (radioactive) and Pb208 (stable) beams were used at sub-Coulomb barrier energies of 3 MeV per nucleon. Level energies, γ-ray transitions, absolute cross sections, spectroscopic factors, asymptotic normalization coefficients, and excited-state lifetimes are reported and compared with shell-model expectations. The results include a new transition and precise level energy for the 3p1/2 candidate in Sn133, new absolute cross sections for the 1h9/2 candidate in Sn133 and 3s1/2 candidate in Sn131, and new lifetimes for excited states in Sn133 and Pb209. This is the first report on excited-state lifetimes of Sn133, which allow for a unique test of the nuclear shell model and Sn132 double-shell closure.",

author = "Allmond, {J. M.} and Stuchbery, {A. E.} and Beene, {J. R.} and A. Galindo-Uribarri and Liang, {J. F.} and E. Padilla-Rodal and Radford, {D. C.} and Varner, {R. L.} and A. Ayres and Batchelder, {J. C.} and A. Bey and Bingham, {C. R.} and Howard, {M. E.} and Jones, {K. L.} and B. Manning and Mueller, {P. E.} and Nesaraja, {C. D.} and Pain, {S. D.} and Peters, {W. A.} and A. Ratkiewicz and Schmitt, {K. T.} and D. Shapira and Smith, {M. S.} and Stone, {N. J.} and Stracener, {D. W.} and Yu, {C. H.}",

year = "2014",

month = apr,

day = "30",

doi = "10.1103/PhysRevLett.112.172701",

language = "English",

volume = "112",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "17",

}

Allmond, JM, Stuchbery, AE, Beene, JR, Galindo-Uribarri, A, Liang, JF, Padilla-Rodal, E, Radford, DC, Varner, RL, Ayres, A, Batchelder, JC, Bey, A, Bingham, CR, Howard, ME, Jones, KL, Manning, B, Mueller, PE , Nesaraja, CD , Pain, SD, Peters, WA, Ratkiewicz, A, Schmitt, KT, Shapira, D, Smith, MS, Stone, NJ, Stracener, DW & Yu, CH 2014, 'Double-magic nature of Sn 132 and Pb 208 through lifetime and cross-section measurements', Physical Review Letters, vol. 112, no. 17, 172701. https://doi.org/10.1103/PhysRevLett.112.172701

TY - JOUR

T1 - Double-magic nature of Sn 132 and Pb 208 through lifetime and cross-section measurements

AU - Allmond, J. M.

AU - Stuchbery, A. E.

AU - Beene, J. R.

AU - Galindo-Uribarri, A.

AU - Liang, J. F.

AU - Padilla-Rodal, E.

AU - Radford, D. C.

AU - Varner, R. L.

AU - Ayres, A.

AU - Batchelder, J. C.

AU - Bey, A.

AU - Bingham, C. R.

AU - Howard, M. E.

AU - Jones, K. L.

AU - Manning, B.

AU - Mueller, P. E.

AU - Nesaraja, C. D.

AU - Pain, S. D.

AU - Peters, W. A.

AU - Ratkiewicz, A.

AU - Schmitt, K. T.

AU - Shapira, D.

AU - Smith, M. S.

AU - Stone, N. J.

AU - Stracener, D. W.

AU - Yu, C. H.

PY - 2014/4/30

Y1 - 2014/4/30

N2 - Single-neutron states in Sn133 and Pb209, which are analogous to single-electron states outside of closed atomic shells in alkali metals, were populated by the (Be9, Be8) one-neutron transfer reaction in inverse kinematics using particle-γ coincidence spectroscopy. In addition, the s1/2 single-neutron hole-state candidate in Sn131 was populated by (Be9, Be10). Doubly closed-shell Sn132 (radioactive) and Pb208 (stable) beams were used at sub-Coulomb barrier energies of 3 MeV per nucleon. Level energies, γ-ray transitions, absolute cross sections, spectroscopic factors, asymptotic normalization coefficients, and excited-state lifetimes are reported and compared with shell-model expectations. The results include a new transition and precise level energy for the 3p1/2 candidate in Sn133, new absolute cross sections for the 1h9/2 candidate in Sn133 and 3s1/2 candidate in Sn131, and new lifetimes for excited states in Sn133 and Pb209. This is the first report on excited-state lifetimes of Sn133, which allow for a unique test of the nuclear shell model and Sn132 double-shell closure.

AB - Single-neutron states in Sn133 and Pb209, which are analogous to single-electron states outside of closed atomic shells in alkali metals, were populated by the (Be9, Be8) one-neutron transfer reaction in inverse kinematics using particle-γ coincidence spectroscopy. In addition, the s1/2 single-neutron hole-state candidate in Sn131 was populated by (Be9, Be10). Doubly closed-shell Sn132 (radioactive) and Pb208 (stable) beams were used at sub-Coulomb barrier energies of 3 MeV per nucleon. Level energies, γ-ray transitions, absolute cross sections, spectroscopic factors, asymptotic normalization coefficients, and excited-state lifetimes are reported and compared with shell-model expectations. The results include a new transition and precise level energy for the 3p1/2 candidate in Sn133, new absolute cross sections for the 1h9/2 candidate in Sn133 and 3s1/2 candidate in Sn131, and new lifetimes for excited states in Sn133 and Pb209. This is the first report on excited-state lifetimes of Sn133, which allow for a unique test of the nuclear shell model and Sn132 double-shell closure.

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U2 - 10.1103/PhysRevLett.112.172701

DO - 10.1103/PhysRevLett.112.172701

M3 - Article

AN - SCOPUS:84899741869

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

M1 - 172701

ER -

Double-magic nature of Sn 132 and Pb 208 through lifetime and cross-section measurements

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