Lifetime measurements of the low-lying excited states of 208Po

D. Kocheva; A. Yaneva; D. Kalaydjieva; G. Rainovski; J. Jolie; N. Pietralla; M. Beckers; A. Blazhev; L. Bussmann; M. Cappellazzo; A. Dewald; F. Diel; M. Djongolov; F. Dunkel; A. Esmaylzadeh; B. Falk; C. Fransen; J. Garbe; L. Gerhard; R.-B. Gerst; K. A. Gladnishki; A. Goldkuhle; G. Hackenberg; C. Henrich; I. Homm; K. Ide; V. Karayonchev; R. Kern; J. Kleemann; L. Knafla; L. Kornwebel; Th. Kröll; M. Ley; C. Muller-Gatermann; M. Scheck; T. Schmidt; P. Spagnoletti; M. Stoyanova; M. Werner

doi:10.1088/1742-6596/1555/1/012020

Lifetime measurements of the low-lying excited states of ²⁰⁸Po

D. Kocheva^*, A. Yaneva, D. Kalaydjieva, G. Rainovski, J. Jolie, N. Pietralla, M. Beckers, A. Blazhev, L. Bussmann, M. Cappellazzo, A. Dewald, F. Diel, M. Djongolov, F. Dunkel, A. Esmaylzadeh, B. Falk, C. Fransen, J. Garbe, L. Gerhard, R.-B. GerstK. A. Gladnishki, A. Goldkuhle, G. Hackenberg, C. Henrich, I. Homm, K. Ide, V. Karayonchev, R. Kern, J. Kleemann, L. Knafla, L. Kornwebel, Th. Kröll, M. Ley, C. Muller-Gatermann, M. Scheck, T. Schmidt, P. Spagnoletti, M. Stoyanova, M. Werner

^*Corresponding author for this work

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

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Abstract

In this study we present the preliminary results about the lifetimes of the 2⁺₂, 4⁺₁ states of ²⁰⁸Po and the upper limit of the lifetime of the 2⁺₁ state. For measuring the lifetimes of the 2⁺₁ and 4⁺₁ states the Recoil Distance Doppler Shift (RDDS) method and for the lifetime of the 2⁺₂ state the Doppler Shift Attenuation method (DSAM) were used. The resulting absolute transition strength B(M1; 2⁺₂ to 2⁺₁)≥0.122(20) μ²N reveals the predominant isovector nature of the 2⁺₂ state of ²⁰⁸Po.

Original language	English
Article number	012020
Number of pages	8
Journal	Journal of Physics: Conference Series
Volume	1555
DOIs	https://doi.org/10.1088/1742-6596/1555/1/012020
Publication status	Published - 1 May 2020

Keywords

lifetime measurement
208Po
Recoil Distance Doppler Shift method
RDDS method
Doppler Shift Attenuation method
DSAM

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10.1088/1742-6596/1555/1/012020Licence: CC BY

2020 05 01 Kocheva et al Lifetime finalFinal published version, 1.02 MBLicence: CC BY

Cite this

Kocheva, D., Yaneva, A., Kalaydjieva, D., Rainovski, G., Jolie, J., Pietralla, N., Beckers, M., Blazhev, A., Bussmann, L., Cappellazzo, M., Dewald, A., Diel, F., Djongolov, M., Dunkel, F., Esmaylzadeh, A., Falk, B., Fransen, C., Garbe, J., Gerhard, L., ... Werner, M. (2020). Lifetime measurements of the low-lying excited states of ²⁰⁸Po. Journal of Physics: Conference Series, 1555, Article 012020. https://doi.org/10.1088/1742-6596/1555/1/012020

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title = "Lifetime measurements of the low-lying excited states of 208Po",

abstract = "In this study we present the preliminary results about the lifetimes of the 2+2, 4+1 states of 208Po and the upper limit of the lifetime of the 2+1 state. For measuring the lifetimes of the 2+1 and 4+1 states the Recoil Distance Doppler Shift (RDDS) method and for the lifetime of the 2+2 state the Doppler Shift Attenuation method (DSAM) were used. The resulting absolute transition strength B(M1; 2+2 to 2+1)≥0.122(20) μ2N reveals the predominant isovector nature of the 2+2 state of 208Po.",

keywords = "lifetime measurement, 208Po, Recoil Distance Doppler Shift method, RDDS method, Doppler Shift Attenuation method, DSAM",

author = "D. Kocheva and A. Yaneva and D. Kalaydjieva and G. Rainovski and J. Jolie and N. Pietralla and M. Beckers and A. Blazhev and L. Bussmann and M. Cappellazzo and A. Dewald and F. Diel and M. Djongolov and F. Dunkel and A. Esmaylzadeh and B. Falk and C. Fransen and J. Garbe and L. Gerhard and R.-B. Gerst and Gladnishki, {K. A.} and A. Goldkuhle and G. Hackenberg and C. Henrich and I. Homm and K. Ide and V. Karayonchev and R. Kern and J. Kleemann and L. Knafla and L. Kornwebel and Th. Kr{\"o}ll and M. Ley and C. Muller-Gatermann and M. Scheck and T. Schmidt and P. Spagnoletti and M. Stoyanova and M. Werner",

year = "2020",

month = may,

day = "1",

doi = "10.1088/1742-6596/1555/1/012020",

language = "English",

volume = "1555",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

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Kocheva, D, Yaneva, A, Kalaydjieva, D, Rainovski, G, Jolie, J, Pietralla, N, Beckers, M, Blazhev, A, Bussmann, L, Cappellazzo, M, Dewald, A, Diel, F, Djongolov, M, Dunkel, F, Esmaylzadeh, A, Falk, B, Fransen, C, Garbe, J, Gerhard, L, Gerst, R-B, Gladnishki, KA, Goldkuhle, A, Hackenberg, G, Henrich, C, Homm, I, Ide, K, Karayonchev, V, Kern, R, Kleemann, J, Knafla, L, Kornwebel, L, Kröll, T, Ley, M, Muller-Gatermann, C, Scheck, M, Schmidt, T, Spagnoletti, P, Stoyanova, M & Werner, M 2020, 'Lifetime measurements of the low-lying excited states of ²⁰⁸Po', Journal of Physics: Conference Series, vol. 1555, 012020. https://doi.org/10.1088/1742-6596/1555/1/012020

TY - JOUR

T1 - Lifetime measurements of the low-lying excited states of 208Po

AU - Kocheva, D.

AU - Yaneva, A.

AU - Kalaydjieva, D.

AU - Rainovski, G.

AU - Jolie, J.

AU - Pietralla, N.

AU - Beckers, M.

AU - Blazhev, A.

AU - Bussmann, L.

AU - Cappellazzo, M.

AU - Dewald, A.

AU - Diel, F.

AU - Djongolov, M.

AU - Dunkel, F.

AU - Esmaylzadeh, A.

AU - Falk, B.

AU - Fransen, C.

AU - Garbe, J.

AU - Gerhard, L.

AU - Gerst, R.-B.

AU - Gladnishki, K. A.

AU - Goldkuhle, A.

AU - Hackenberg, G.

AU - Henrich, C.

AU - Homm, I.

AU - Ide, K.

AU - Karayonchev, V.

AU - Kern, R.

AU - Kleemann, J.

AU - Knafla, L.

AU - Kornwebel, L.

AU - Kröll, Th.

AU - Ley, M.

AU - Muller-Gatermann, C.

AU - Scheck, M.

AU - Schmidt, T.

AU - Spagnoletti, P.

AU - Stoyanova, M.

AU - Werner, M.

PY - 2020/5/1

Y1 - 2020/5/1

N2 - In this study we present the preliminary results about the lifetimes of the 2+2, 4+1 states of 208Po and the upper limit of the lifetime of the 2+1 state. For measuring the lifetimes of the 2+1 and 4+1 states the Recoil Distance Doppler Shift (RDDS) method and for the lifetime of the 2+2 state the Doppler Shift Attenuation method (DSAM) were used. The resulting absolute transition strength B(M1; 2+2 to 2+1)≥0.122(20) μ2N reveals the predominant isovector nature of the 2+2 state of 208Po.

AB - In this study we present the preliminary results about the lifetimes of the 2+2, 4+1 states of 208Po and the upper limit of the lifetime of the 2+1 state. For measuring the lifetimes of the 2+1 and 4+1 states the Recoil Distance Doppler Shift (RDDS) method and for the lifetime of the 2+2 state the Doppler Shift Attenuation method (DSAM) were used. The resulting absolute transition strength B(M1; 2+2 to 2+1)≥0.122(20) μ2N reveals the predominant isovector nature of the 2+2 state of 208Po.

KW - lifetime measurement

KW - 208Po

KW - Recoil Distance Doppler Shift method

KW - RDDS method

KW - Doppler Shift Attenuation method

KW - DSAM

U2 - 10.1088/1742-6596/1555/1/012020

DO - 10.1088/1742-6596/1555/1/012020

M3 - Article

SN - 1742-6588

VL - 1555

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

M1 - 012020

ER -