Nuclear structure towards N=40 Ca 60: In-Beam γ-ray spectroscopy of Ti 58,60

A. Gade; R. V.F. Janssens; D. Weisshaar; B. A. Brown; E. Lunderberg; M. Albers; V. M. Bader; T. Baugher; D. Bazin; J. S. Berryman; C. M. Campbell; M. P. Carpenter; C. J. Chiara; H. L. Crawford; M. Cromaz; U. Garg; C. R. Hoffman; F. G. Kondev; C. Langer; T. Lauritsen; I. Y. Lee; S. M. Lenzi; J. T. Matta; F. Nowacki; F. Recchia; K. Sieja; S. R. Stroberg; J. A. Tostevin; S. J. Williams; K. Wimmer; S. Zhu

doi:10.1103/PhysRevLett.112.112503

Nuclear structure towards N=40 Ca 60: In-Beam γ-ray spectroscopy of Ti 58,60

A. Gade, R. V.F. Janssens, D. Weisshaar, B. A. Brown, E. Lunderberg, M. Albers, V. M. Bader, T. Baugher, D. Bazin, J. S. Berryman, C. M. Campbell, M. P. Carpenter, C. J. Chiara, H. L. Crawford, M. Cromaz, U. Garg, C. R. Hoffman, F. G. Kondev, C. Langer, T. LauritsenI. Y. Lee, S. M. Lenzi, J. T. Matta, F. Nowacki, F. Recchia, K. Sieja, S. R. Stroberg, J. A. Tostevin, S. J. Williams, K. Wimmer, S. Zhu

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Abstract

Excited states in the neutron-rich N=38, 36 nuclei Ti60 and Ti58 were populated in nucleon-removal reactions from V61 projectiles at 90MeV/nucleon. The γ-ray transitions from such states in these Ti isotopes were detected with the advanced γ-ray tracking array GRETINA and were corrected event by event for large Doppler shifts (v/c∼0.4) using the γ-ray interaction points deduced from online signal decomposition. The new data indicate that a steep decrease in quadrupole collectivity occurs when moving from neutron-rich N=36, 38 Fe and Cr toward the Ti and Ca isotones. In fact, Ti58,60 provide some of the most neutron-rich benchmarks accessible today for calculations attempting to determine the structure of the potentially doubly magic nucleus Ca60.

Original language	English
Article number	112503
Journal	Physical Review Letters
Volume	112
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.112.112503
State	Published - Mar 21 2014
Externally published	Yes

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Gade, A., Janssens, R. V. F., Weisshaar, D., Brown, B. A., Lunderberg, E., Albers, M., Bader, V. M., Baugher, T., Bazin, D., Berryman, J. S., Campbell, C. M., Carpenter, M. P., Chiara, C. J., Crawford, H. L., Cromaz, M., Garg, U., Hoffman, C. R., Kondev, F. G., Langer, C., ... Zhu, S. (2014). Nuclear structure towards N=40 Ca 60: In-Beam γ-ray spectroscopy of Ti 58,60. Physical Review Letters, 112(11), Article 112503. https://doi.org/10.1103/PhysRevLett.112.112503

@article{50740350266f4cd1a5d4d2403133a6a4,

title = "Nuclear structure towards N=40 Ca 60: In-Beam γ-ray spectroscopy of Ti 58,60",

abstract = "Excited states in the neutron-rich N=38, 36 nuclei Ti60 and Ti58 were populated in nucleon-removal reactions from V61 projectiles at 90MeV/nucleon. The γ-ray transitions from such states in these Ti isotopes were detected with the advanced γ-ray tracking array GRETINA and were corrected event by event for large Doppler shifts (v/c∼0.4) using the γ-ray interaction points deduced from online signal decomposition. The new data indicate that a steep decrease in quadrupole collectivity occurs when moving from neutron-rich N=36, 38 Fe and Cr toward the Ti and Ca isotones. In fact, Ti58,60 provide some of the most neutron-rich benchmarks accessible today for calculations attempting to determine the structure of the potentially doubly magic nucleus Ca60.",

author = "A. Gade and Janssens, {R. V.F.} and D. Weisshaar and Brown, {B. A.} and E. Lunderberg and M. Albers and Bader, {V. M.} and T. Baugher and D. Bazin and Berryman, {J. S.} and Campbell, {C. M.} and Carpenter, {M. P.} and Chiara, {C. J.} and Crawford, {H. L.} and M. Cromaz and U. Garg and Hoffman, {C. R.} and Kondev, {F. G.} and C. Langer and T. Lauritsen and Lee, {I. Y.} and Lenzi, {S. M.} and Matta, {J. T.} and F. Nowacki and F. Recchia and K. Sieja and Stroberg, {S. R.} and Tostevin, {J. A.} and Williams, {S. J.} and K. Wimmer and S. Zhu",

year = "2014",

month = mar,

day = "21",

doi = "10.1103/PhysRevLett.112.112503",

language = "English",

volume = "112",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "11",

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Gade, A, Janssens, RVF, Weisshaar, D, Brown, BA, Lunderberg, E, Albers, M, Bader, VM, Baugher, T, Bazin, D, Berryman, JS, Campbell, CM, Carpenter, MP, Chiara, CJ, Crawford, HL, Cromaz, M, Garg, U, Hoffman, CR, Kondev, FG, Langer, C, Lauritsen, T, Lee, IY, Lenzi, SM, Matta, JT, Nowacki, F, Recchia, F, Sieja, K, Stroberg, SR, Tostevin, JA, Williams, SJ, Wimmer, K & Zhu, S 2014, 'Nuclear structure towards N=40 Ca 60: In-Beam γ-ray spectroscopy of Ti 58,60', Physical Review Letters, vol. 112, no. 11, 112503. https://doi.org/10.1103/PhysRevLett.112.112503

TY - JOUR

T1 - Nuclear structure towards N=40 Ca 60

T2 - In-Beam γ-ray spectroscopy of Ti 58,60

AU - Gade, A.

AU - Janssens, R. V.F.

AU - Weisshaar, D.

AU - Brown, B. A.

AU - Lunderberg, E.

AU - Albers, M.

AU - Bader, V. M.

AU - Baugher, T.

AU - Bazin, D.

AU - Berryman, J. S.

AU - Campbell, C. M.

AU - Carpenter, M. P.

AU - Chiara, C. J.

AU - Crawford, H. L.

AU - Cromaz, M.

AU - Garg, U.

AU - Hoffman, C. R.

AU - Kondev, F. G.

AU - Langer, C.

AU - Lauritsen, T.

AU - Lee, I. Y.

AU - Lenzi, S. M.

AU - Matta, J. T.

AU - Nowacki, F.

AU - Recchia, F.

AU - Sieja, K.

AU - Stroberg, S. R.

AU - Tostevin, J. A.

AU - Williams, S. J.

AU - Wimmer, K.

AU - Zhu, S.

PY - 2014/3/21

Y1 - 2014/3/21

N2 - Excited states in the neutron-rich N=38, 36 nuclei Ti60 and Ti58 were populated in nucleon-removal reactions from V61 projectiles at 90MeV/nucleon. The γ-ray transitions from such states in these Ti isotopes were detected with the advanced γ-ray tracking array GRETINA and were corrected event by event for large Doppler shifts (v/c∼0.4) using the γ-ray interaction points deduced from online signal decomposition. The new data indicate that a steep decrease in quadrupole collectivity occurs when moving from neutron-rich N=36, 38 Fe and Cr toward the Ti and Ca isotones. In fact, Ti58,60 provide some of the most neutron-rich benchmarks accessible today for calculations attempting to determine the structure of the potentially doubly magic nucleus Ca60.

AB - Excited states in the neutron-rich N=38, 36 nuclei Ti60 and Ti58 were populated in nucleon-removal reactions from V61 projectiles at 90MeV/nucleon. The γ-ray transitions from such states in these Ti isotopes were detected with the advanced γ-ray tracking array GRETINA and were corrected event by event for large Doppler shifts (v/c∼0.4) using the γ-ray interaction points deduced from online signal decomposition. The new data indicate that a steep decrease in quadrupole collectivity occurs when moving from neutron-rich N=36, 38 Fe and Cr toward the Ti and Ca isotones. In fact, Ti58,60 provide some of the most neutron-rich benchmarks accessible today for calculations attempting to determine the structure of the potentially doubly magic nucleus Ca60.

UR - http://www.scopus.com/inward/record.url?scp=84897450954&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.112.112503

DO - 10.1103/PhysRevLett.112.112503

M3 - Article

AN - SCOPUS:84897450954

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

M1 - 112503

ER -

Nuclear structure towards N=40 Ca 60: In-Beam γ-ray spectroscopy of Ti 58,60

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