α-decay half-life of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Es</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>253</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>in metallic Fe at temperatures between 4 K and 50 mK

Severijns, N.; Belyaev, Andrey K.; Erzinkyan, A. L.; Eversheim, P.D.; Filimonov, V.T.; Golovko, V. V.; Gurevich, G. M.; Herzog, P.; Kraev, I. S.; Lukhanin, A.A.; Noga, V.I.; Parfenova, V. P.; Phalet, T.; Rusakov, A. V.; Toporov, Yu. P.; Tramm, C.; Vyachin, V. N.; Wauters, F.; Zákoucký, D.; Zotov, E.

doi:10.1103/physrevc.76.024304

Cited by 20 publications

(9 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because of the findings reported in [16] and [17], it comes as no surprise that our results do not support the Debye-Hücker model [1][2][3], which predicts (based on the calculations of [11,12]) a reduction of the half-life of 221 Fr in a metal at 4 K with a factor of about 50, and at 20 mK with a factor of many orders of magnitude more. No dependency on the solid-state environment and temperature of this α decaying isotope is observed up to a level of 1 × 10 −3 , which is at variance with the reported 6% change of the activity of 213 Po nuclei implanted in Cu at 12 K [4].…”

Section: Discussioncontrasting

confidence: 38%

“…Further, it was argued [16,17] that if the Debye plasma model would be applicable to α decays, the effect should have been observed previously in Low Temperature Nuclear Orientation (LTNO) experiments [18]. In this type of experiment, radioactive isotopes are implanted in a metallic foil, typically Fe, and cooled to millikelvin temperatures.…”

Section: Introductionmentioning

confidence: 99%

“…[21][22][23][24]). In LTNO experiments on α-decaying isotopes implanted in Fe, no half-life changes at the percent level were observed between room temperature and 1 K [17], and between 4 K and 50 mK [16].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Half-life ofFr221in Si and Au at 4 K and at millikelvin temperatures

et al. 2010

Self Cite

View full text Add to dashboard Cite

The half-life of the α-decaying nucleus 221 Fr was determined in different environments, that is, embedded in Si at 4 K, and embedded in Au at 4 K and about 20 mK. No differences in half-life for these different conditions were observed within 0.1%. Furthermore, we quote a value for the absolute half-life of 221 Fr of t 1/2 = 286.1(10) s that is of comparable precision to the most precise value available in the literature.

show abstract

Section: Discussioncontrasting

confidence: 38%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Half-life ofFr221in Si and Au at 4 K and at millikelvin temperatures

et al. 2010

Self Cite

View full text Add to dashboard Cite

show abstract

“…Hints for similar behavior were found also in the electron capture rate of Be 7 [9,10]. While in some of these experiments temperature dependence was also claimed [1,2], no such dependence was found in others [9,11].…”

Section: Introductionsupporting

confidence: 53%

Deuterium-deuterium nuclear cross-sections in insulator and metallic environments

Salzmann

Hass

2008

Eur. Phys. J. A

View full text Add to dashboard Cite

The three-dimensional Thomas-Fermi (TF) model is used to simulate the variation of the d+d → t + p cross-section at low impact energies, when the target deuterium nucleus is embedded in metallic or insulator environments. Comparison of the computational results to recent experiments demonstrates that even though the TF model can explain some increase in the low energy cross section for metallic host, a full explanation of the experimental results is still lacking. Possible reasons for the disagreement are discussed.PACS. 95.30.-k Fundamental aspects of astrophysics -95.30.Dr Atomic processes and interactions

show abstract

“…1. Measurements of electron capture decay rates and constants of 7 Be in host materials [9,10,11,12,13], of αradioactive uranium exposed to glow-discharge plasma [14] and of other heavy nuclei implanted in different environments [15,16,17] have recently shown fluctuations and variations of previous standard results.…”

Section: Introductionmentioning

confidence: 99%

Nuclear problems in astrophysical q-plasmas and environments

Coraddu¹,

Lissia²,

Quarati³

et al. 2009

Braz. J. Phys.

View full text Add to dashboard Cite

Experimental measurements in terrestrial laboratory, space and astrophysical observations of variation and fluctuation of nuclear decay constants, measurements of large enhancements in fusion reaction rate of deuterons implanted in metals and electron capture by nuclei in solar core indicate that these processes depend on the environment where they take place and possibly also on the fluctuation of some extensive parameters and eventually on stellar energy production. Electron screening is the first important environment effect. We need to develop a treatment beyond the Debye-Hückel screening approach, commonly adopted within global thermodynamic equilibrium. Advances in the description of these processes can be obtained by means of q-thermostatistics and/or superstatistics for metastable states. This implies to handle, without ambiguities, the case q < 1.

show abstract

α-decay half-life ofEs253in metallic Fe at temperatures between 4 K and 50 mK

Cited by 20 publications

References 13 publications

Half-life ofFr221in Si and Au at 4 K and at millikelvin temperatures

Half-life ofFr221in Si and Au at 4 K and at millikelvin temperatures

Deuterium-deuterium nuclear cross-sections in insulator and metallic environments

Nuclear problems in astrophysical q-plasmas and environments

Contact Info

Product

Resources

About