Low-lying isovector 2(+) valence-shell excitations of Po-212

D. Kocheva; G. Rainovski; J. Jolie; N. Pietralla; C. Stahl; P. Petkov; A. Blazhev; A. Hennig; A. Astier; Th. Braunroth; M. L. Cortes; A. Dewald; M. Djongolov; C. Fransen; K. Gladnishki; V. Karayonchev; J. Litzinger; C. Mueller-Gatermann; M. Scheck; Ph. Scholz; R. Stegmann; P. Thoele; V. Werner; W. Witt; D. Woelk; P. Van Isacker

doi:10.1103/PhysRevC.93.011303

Low-lying isovector 2(+) valence-shell excitations of Po-212

D. Kocheva
, G. Rainovski
, J. Jolie
, N. Pietralla
, C. Stahl
, P. Petkov
, A. Blazhev
, A. Hennig
, A. Astier
, Th. Braunroth
, M. L. Cortes
, A. Dewald
, M. Djongolov
, C. Fransen
, K. Gladnishki
, V. Karayonchev
, J. Litzinger
, C. Mueller-Gatermann
, M. Scheck
, Ph. Scholz

R. Stegmann, P. Thoele, V. Werner, W. Witt, D. Woelk, P. Van Isacker

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

17 Citations (Scopus)

Abstract

We present the results from an experiment dedicated to search for quadrupole-collective isovector valence-shell excitations, states with so-called mixed proton-neutron symmetry (MSS), of 212Po. This nucleus was studied in an
α-transfer reaction. The lifetimes of two short-lived excited states, candidates for the one-phonon MSS, were determined by utilizing the Doppler shift attenuation method. The experimental results are in qualitative agreement with a simple single-j shell model calculation, which, together with the observed lack of quadrupole collectivity, indicates that the isovector nature of low-lying states is a property of the leading single-particle valence shell configuration.

Original language	English
Article number	011303
Journal	Physical Review C
Volume	93
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.93.011303
Publication status	Published - 19 Jan 2016

Keywords

Nuclear-data sheets
collective modes
mixed-symmetry
states
spectroscopy
beam

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10.1103/PhysRevC.93.011303

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Kocheva, D., Rainovski, G., Jolie, J., Pietralla, N., Stahl, C., Petkov, P., Blazhev, A., Hennig, A., Astier, A., Braunroth, T., Cortes, M. L., Dewald, A., Djongolov, M., Fransen, C., Gladnishki, K., Karayonchev, V., Litzinger, J., Mueller-Gatermann, C., Scheck, M., ... Van Isacker, P. (2016). Low-lying isovector 2(+) valence-shell excitations of Po-212. Physical Review C, 93(1), Article 011303. https://doi.org/10.1103/PhysRevC.93.011303

@article{66b9c85b8c5b4fcd89bb27204550fec3,

title = "Low-lying isovector 2(+) valence-shell excitations of Po-212",

abstract = "We present the results from an experiment dedicated to search for quadrupole-collective isovector valence-shell excitations, states with so-called mixed proton-neutron symmetry (MSS), of 212Po. This nucleus was studied in an α-transfer reaction. The lifetimes of two short-lived excited states, candidates for the one-phonon MSS, were determined by utilizing the Doppler shift attenuation method. The experimental results are in qualitative agreement with a simple single-j shell model calculation, which, together with the observed lack of quadrupole collectivity, indicates that the isovector nature of low-lying states is a property of the leading single-particle valence shell configuration.",

keywords = "Nuclear-data sheets, collective modes, mixed-symmetry, states, spectroscopy, beam",

author = "D. Kocheva and G. Rainovski and J. Jolie and N. Pietralla and C. Stahl and P. Petkov and A. Blazhev and A. Hennig and A. Astier and Th. Braunroth and Cortes, \{M. L.\} and A. Dewald and M. Djongolov and C. Fransen and K. Gladnishki and V. Karayonchev and J. Litzinger and C. Mueller-Gatermann and M. Scheck and Ph. Scholz and R. Stegmann and P. Thoele and V. Werner and W. Witt and D. Woelk and \{Van Isacker\}, P.",

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doi = "10.1103/PhysRevC.93.011303",

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Kocheva, D, Rainovski, G, Jolie, J, Pietralla, N, Stahl, C, Petkov, P, Blazhev, A, Hennig, A, Astier, A, Braunroth, T, Cortes, ML, Dewald, A, Djongolov, M, Fransen, C, Gladnishki, K, Karayonchev, V, Litzinger, J, Mueller-Gatermann, C, Scheck, M, Scholz, P, Stegmann, R, Thoele, P, Werner, V, Witt, W, Woelk, D & Van Isacker, P 2016, 'Low-lying isovector 2(+) valence-shell excitations of Po-212', Physical Review C, vol. 93, no. 1, 011303. https://doi.org/10.1103/PhysRevC.93.011303

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T1 - Low-lying isovector 2(+) valence-shell excitations of Po-212

AU - Kocheva, D.

AU - Rainovski, G.

AU - Jolie, J.

AU - Pietralla, N.

AU - Stahl, C.

AU - Petkov, P.

AU - Blazhev, A.

AU - Hennig, A.

AU - Astier, A.

AU - Braunroth, Th.

AU - Cortes, M. L.

AU - Dewald, A.

AU - Djongolov, M.

AU - Fransen, C.

AU - Gladnishki, K.

AU - Karayonchev, V.

AU - Litzinger, J.

AU - Mueller-Gatermann, C.

AU - Scheck, M.

AU - Scholz, Ph.

AU - Stegmann, R.

AU - Thoele, P.

AU - Werner, V.

AU - Witt, W.

AU - Woelk, D.

AU - Van Isacker, P.

N1 - Keywords from WoS

PY - 2016/1/19

Y1 - 2016/1/19

N2 - We present the results from an experiment dedicated to search for quadrupole-collective isovector valence-shell excitations, states with so-called mixed proton-neutron symmetry (MSS), of 212Po. This nucleus was studied in an α-transfer reaction. The lifetimes of two short-lived excited states, candidates for the one-phonon MSS, were determined by utilizing the Doppler shift attenuation method. The experimental results are in qualitative agreement with a simple single-j shell model calculation, which, together with the observed lack of quadrupole collectivity, indicates that the isovector nature of low-lying states is a property of the leading single-particle valence shell configuration.

AB - We present the results from an experiment dedicated to search for quadrupole-collective isovector valence-shell excitations, states with so-called mixed proton-neutron symmetry (MSS), of 212Po. This nucleus was studied in an α-transfer reaction. The lifetimes of two short-lived excited states, candidates for the one-phonon MSS, were determined by utilizing the Doppler shift attenuation method. The experimental results are in qualitative agreement with a simple single-j shell model calculation, which, together with the observed lack of quadrupole collectivity, indicates that the isovector nature of low-lying states is a property of the leading single-particle valence shell configuration.

KW - Nuclear-data sheets

KW - collective modes

KW - mixed-symmetry

KW - states

KW - spectroscopy

KW - beam

U2 - 10.1103/PhysRevC.93.011303

DO - 10.1103/PhysRevC.93.011303

M3 - Article

SN - 2469-9985

VL - 93

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 011303

ER -

Low-lying isovector 2(+) valence-shell excitations of Po-212

Abstract

Keywords

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