Charge radii of odd-A Po isotopes

M.D. Seliverstov; T.E. Cocolios; W. Dexters; A.N. Andreyev; B. Bastin; J. Büscher; I.G. Darby; M. Huyse; M. Keupers; Y. Kudryavtsev; J. Van de Walle; P. Van Duppen; M. Venhart; A.E. Barzakh; D.V. Fedorov; P.L. Molkanov; G. Huber; A.M. Sjødin; V.N. Fedoseyev; B.A. Marsh; S. Antalic; K.T. Flanagan; S. Franchoo; S. Fritzsche; U. Köster; R.D. Page; I. Stefan; S.G. Zemlyanoy

doi:10.1016/j.physletb.2013.01.043

Charge radii of odd-A Po isotopes

M.D. Seliverstov, T.E. Cocolios, W. Dexters, A.N. Andreyev, B. Bastin, J. Büscher, I.G. Darby, M. Huyse, M. Keupers, Y. Kudryavtsev, J. Van de Walle, P. Van Duppen, M. Venhart, A.E. Barzakh, D.V. Fedorov, P.L. Molkanov, G. Huber, A.M. Sjødin, V.N. Fedoseyev, B.A. MarshS. Antalic, K.T. Flanagan, S. Franchoo, S. Fritzsche, U. Köster, R.D. Page, I. Stefan, S.G. Zemlyanoy

Physics

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Abstract

Isotope shifts have been measured for the odd-A polonium isotopes Po and changes in the nuclear mean square charge radii 〈r〉 have been deduced. The measurements were performed at CERN-ISOLDE using the in-source resonance-ionization spectroscopy technique. The combined analysis of these data and our recent results for even-A polonium isotopes indicates an onset of deformation already at Po, when going away from stability. This is significantly earlier than was suggested by previous theoretical and experimental studies of the polonium isotopes. Moreover and in contrast to the mercury isotopes, where a strong odd-even staggering of the charge radii of the ground states was observed by approaching the neutron mid-shell at N=104, no such effect is present in polonium down to Po. Consequently the charge radii of both isomeric and ground states of the odd-A polonium isotopes follow the same trend as the even-A isotopes.

Original language	English
Pages (from-to)	362-366
Journal	Physics Letters B : Nuclear, Elementary Particle and High-Energy Physics
Volume	719
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2013.01.043
Publication status	Published - 26 Feb 2013

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Seliverstov, M. D., Cocolios, T. E., Dexters, W., Andreyev, A. N., Bastin, B., Büscher, J., Darby, I. G., Huyse, M., Keupers, M., Kudryavtsev, Y., Van de Walle, J., Van Duppen, P., Venhart, M., Barzakh, A. E., Fedorov, D. V., Molkanov, P. L., Huber, G., Sjødin, A. M., Fedoseyev, V. N., ... Zemlyanoy, S. G. (2013). Charge radii of odd-A Po isotopes. Physics Letters B : Nuclear, Elementary Particle and High-Energy Physics, 719(4-5), 362-366. https://doi.org/10.1016/j.physletb.2013.01.043

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title = "Charge radii of odd-A Po isotopes",

abstract = "Isotope shifts have been measured for the odd-A polonium isotopes Po and changes in the nuclear mean square charge radii 〈r〉 have been deduced. The measurements were performed at CERN-ISOLDE using the in-source resonance-ionization spectroscopy technique. The combined analysis of these data and our recent results for even-A polonium isotopes indicates an onset of deformation already at Po, when going away from stability. This is significantly earlier than was suggested by previous theoretical and experimental studies of the polonium isotopes. Moreover and in contrast to the mercury isotopes, where a strong odd-even staggering of the charge radii of the ground states was observed by approaching the neutron mid-shell at N=104, no such effect is present in polonium down to Po. Consequently the charge radii of both isomeric and ground states of the odd-A polonium isotopes follow the same trend as the even-A isotopes.",

author = "M.D. Seliverstov and T.E. Cocolios and W. Dexters and A.N. Andreyev and B. Bastin and J. B{\"u}scher and I.G. Darby and M. Huyse and M. Keupers and Y. Kudryavtsev and {Van de Walle}, J. and {Van Duppen}, P. and M. Venhart and A.E. Barzakh and D.V. Fedorov and P.L. Molkanov and G. Huber and A.M. Sj{\o}din and V.N. Fedoseyev and B.A. Marsh and S. Antalic and K.T. Flanagan and S. Franchoo and S. Fritzsche and U. K{\"o}ster and R.D. Page and I. Stefan and S.G. Zemlyanoy",

year = "2013",

month = feb,

day = "26",

doi = "10.1016/j.physletb.2013.01.043",

language = "English",

volume = "719",

pages = "362--366",

journal = "Physics Letters B",

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Seliverstov, MD, Cocolios, TE, Dexters, W, Andreyev, AN, Bastin, B, Büscher, J, Darby, IG, Huyse, M, Keupers, M, Kudryavtsev, Y, Van de Walle, J, Van Duppen, P, Venhart, M, Barzakh, AE, Fedorov, DV, Molkanov, PL, Huber, G, Sjødin, AM, Fedoseyev, VN, Marsh, BA, Antalic, S, Flanagan, KT, Franchoo, S, Fritzsche, S, Köster, U, Page, RD, Stefan, I & Zemlyanoy, SG 2013, 'Charge radii of odd-A Po isotopes', Physics Letters B : Nuclear, Elementary Particle and High-Energy Physics, vol. 719, no. 4-5, pp. 362-366. https://doi.org/10.1016/j.physletb.2013.01.043

TY - JOUR

T1 - Charge radii of odd-A Po isotopes

AU - Seliverstov, M.D.

AU - Cocolios, T.E.

AU - Dexters, W.

AU - Andreyev, A.N.

AU - Bastin, B.

AU - Büscher, J.

AU - Darby, I.G.

AU - Huyse, M.

AU - Keupers, M.

AU - Kudryavtsev, Y.

AU - Van de Walle, J.

AU - Van Duppen, P.

AU - Venhart, M.

AU - Barzakh, A.E.

AU - Fedorov, D.V.

AU - Molkanov, P.L.

AU - Huber, G.

AU - Sjødin, A.M.

AU - Fedoseyev, V.N.

AU - Marsh, B.A.

AU - Antalic, S.

AU - Flanagan, K.T.

AU - Franchoo, S.

AU - Fritzsche, S.

AU - Köster, U.

AU - Page, R.D.

AU - Stefan, I.

AU - Zemlyanoy, S.G.

PY - 2013/2/26

Y1 - 2013/2/26

N2 - Isotope shifts have been measured for the odd-A polonium isotopes Po and changes in the nuclear mean square charge radii 〈r〉 have been deduced. The measurements were performed at CERN-ISOLDE using the in-source resonance-ionization spectroscopy technique. The combined analysis of these data and our recent results for even-A polonium isotopes indicates an onset of deformation already at Po, when going away from stability. This is significantly earlier than was suggested by previous theoretical and experimental studies of the polonium isotopes. Moreover and in contrast to the mercury isotopes, where a strong odd-even staggering of the charge radii of the ground states was observed by approaching the neutron mid-shell at N=104, no such effect is present in polonium down to Po. Consequently the charge radii of both isomeric and ground states of the odd-A polonium isotopes follow the same trend as the even-A isotopes.

AB - Isotope shifts have been measured for the odd-A polonium isotopes Po and changes in the nuclear mean square charge radii 〈r〉 have been deduced. The measurements were performed at CERN-ISOLDE using the in-source resonance-ionization spectroscopy technique. The combined analysis of these data and our recent results for even-A polonium isotopes indicates an onset of deformation already at Po, when going away from stability. This is significantly earlier than was suggested by previous theoretical and experimental studies of the polonium isotopes. Moreover and in contrast to the mercury isotopes, where a strong odd-even staggering of the charge radii of the ground states was observed by approaching the neutron mid-shell at N=104, no such effect is present in polonium down to Po. Consequently the charge radii of both isomeric and ground states of the odd-A polonium isotopes follow the same trend as the even-A isotopes.

UR - http://www.scopus.com/inward/record.url?scp=84873571388&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2013.01.043

DO - 10.1016/j.physletb.2013.01.043

M3 - Article

AN - SCOPUS:84873571388

VL - 719

SP - 362

EP - 366

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 4-5

ER -

Charge radii of odd-A Po isotopes

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