Direct laboratory determination of the 187Re half-life

Lindner, M.; Leich, D. A.; Borg, R. J.; Russ, G. P.; Bazan, J. M.; Simons, David S.; Date, Alan R.

doi:10.1038/320246a0

Cited by 76 publications

(25 citation statements)

References 10 publications

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“…Using a better determination of the decay rate of 187 75 Re based on the growth of 187 Os over a 4-year period into a large source of osmium free rhenium, Lindner et al (1986) …”

Section: α-Decaymentioning

confidence: 99%

The fundamental constants and their variation: observational and theoretical status

2003

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This article describes the various experimental bounds on the variation of the fundamental constants of nature. After a discussion on the role of fundamental constants, of their definition and link with metrology, the various constraints on the variation of the fine structure constant, the gravitational, weak and strong interactions couplings and the electron to proton mass ratio are reviewed. This review aims (1) to provide the basics of each measurement, (2) to show as clearly as possible why it constrains a given constant and (3) to point out the underlying hypotheses. Such an investigation is of importance to compare the different results, particularly in view of understanding the recent claims of the detections of a variation of the fine structure constant and of the electron to proton mass ratio in quasar absorption spectra. The theoretical models leading to the prediction of such variation are also reviewed, including KaluzaKlein theories, string theories and other alternative theories and cosmological implications of these results are discussed. The links with the tests of general relativity are emphasized.

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“…Using a better determination of the decay rate of 187 75 Re based on the growth of 187 Os over a 4-year period into a large source of osmium free rhenium, Lindner et al (1986) …”

Section: α-Decaymentioning

confidence: 99%

The fundamental constants and their variation: observational and theoretical status

2003

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“…[2,18,20,21,22] that only coupling constants vary, while the masses of the proton, the neutron and the electron are constant. Conversely, we expect those to vary as well, and some nuclear effects are sensitive to that variation.…”

Section: Geochemical Datamentioning

confidence: 99%

Some possibilities for laboratory searches for variations of fundamental constants

Karshenboim¹

2000

Can. J. Phys.

114

104

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We consider different options for the search for possible variations of the fundamental constants. We give a brief overview of the results obtained with several methods. We discuss their advantages and disadvantages with respect to simultaneous variations of all constants in both time and space in the range 10 8 − 10 10 yr. We also suggest a few possibilities for the laboratory search. Particularly, we propose some experiments with the hyperfine structure of hydrogen, deuterium and ytterbium-171 and of some atoms with a small magnetic moment. Other suggestions are for some measurements of the fine structure associated with the ground state. Special attention is paid to the interpretation of the hfs measurements in terms of variations of the fundamental constants.

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“…Luck and Allegre (1983) In this paper, we will report Os isotope reported the half life value of (4.56 ± 0.12) X ratios in iron meteorites and iridosmines as well 1010y based on the meteoritic isochron. On the as Os reagents measured by ICP-MS. ICP-MS other hand, Lindner et al (1986) measured Os uses inductively coupled plasma (ICP) as an isotope ratios in HReO4 by two different types atmospheric ion source for a quadrupole mass of mass spectrometers, an inductively coupled spectrometer (Gray, 1975(Gray, , 1985Gray and Date, plasma mass spectrometer (ICP-MS) and a laser 1983; Houk et al, 1980). The most prelimina microprobe mass analyzer (LAMMA).…”

Section: Introductionmentioning

confidence: 99%

Determinations of osmium isotope ratios in iron meteorites and iridosmines by ICP-MS.

1986

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Direct laboratory determination of the 187Re half-life

Cited by 76 publications

References 10 publications

The fundamental constants and their variation: observational and theoretical status

The fundamental constants and their variation: observational and theoretical status

Some possibilities for laboratory searches for variations of fundamental constants

Determinations of osmium isotope ratios in iron meteorites and iridosmines by ICP-MS.

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