Nuclear Energy Levels of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">K</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>37</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>

Goosman, D.R.; Kavanagh, R. W.

doi:10.1103/physrev.161.1156

Cited by 46 publications

(20 citation statements)

References 31 publications

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“…It should be noted that both sets of absolute resonance strengths are consistent with each other (see the discussion in Powell et al 1998). We have also included the 36Ar( p, c)37K reaction, since two groups (Goosman & Kavanagh 1967 ;Mohr et al 1999) have independently measured the same resonance using di †erent techniques (gas target and implanted target, respectively) and found consistent results. For the reactions listed in Table 1 we have normalized all available measured strengths to the corresponding standard values.…”

Section: Absolute Resonance Strength Standardssupporting

confidence: 58%

“…c Resonance strength uncertainty (in percent). REFERENCES.È(1) Paine & Sargood 1979 ; (2) Powell et al 1998 ; (3) Powell et al 1999 ;(4) Anderson et al 1980 ;(5) Goosman &Kavanagh 1967 andMohr et al 1999, weighted average of values. Second, several accurately known experimental reaction rates presented here have been used to test the reliability of current Hauser-Feshbach calculations involving sd shell target nuclei.…”

Section: Introductionmentioning

confidence: 99%

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Proton‐induced Thermonuclear Reaction Rates for A = 20–40 Nuclei

Iliadis

D’Auria

Starrfield

et al. 2001

ASTROPHYS J SUPPL S

286

419

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Proton-induced reaction rates on 26 stable and 29 unstable target nuclei in the mass A \ 20È40 region have been evaluated and compiled. Recommended reaction rates, assuming that all interacting nuclei are in the ground state, are presented in tabular form on a temperature grid in the range T \ 0.01È10.0 GK. Most reaction rates involving stable targets were normalized to a set of measured standard resonance strengths in the sd shell. For the majority of reaction rates, experimental information from transfer reaction studies has been used consistently. Our results are compared with recent statistical model (HauserFeshbach) calculations. Reaction rate uncertainties are presented and amount to several orders of magnitude for many of the reactions. Several of these reaction rates and/or their corresponding uncertainties deviate from results of previous compilations. In most cases, the deviations are explained by the fact that new experimental information became available recently. Examples are given for calculating reaction rates and reverse reaction rates for thermally excited nuclei from the present results. The survey of literature for this review was concluded in 2000 August.

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Section: Absolute Resonance Strength Standardssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Proton‐induced Thermonuclear Reaction Rates for A = 20–40 Nuclei

Iliadis

D’Auria

Starrfield

et al. 2001

ASTROPHYS J SUPPL S

286

419

View full text Add to dashboard Cite

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“…The proton capture on Ar was previously investigated by Goosman and Kavanagh [3] and by de Esch and van der Leun [4] in the bombarding energy range E &0.9 MeV. Figure 2 shows the level diagram of K with the corresponding resonances in the Ar+p channel and the important energy windows for different stellar temperatures.…”

mentioning

confidence: 93%

ReactionAr36(p,γ)37
Iliadis
¹
,
Ross
²
,
Wiescher
³

et al. 1992
Phys. Rev. C
14
0
14
0
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The reaction Ar(p, y) K has been measured in the proton energy range of E~= 0.32-0.93 MeU. A new resonance was found at E& =321 keU. We have measured the branching ratios and the resonance strength.The stellar reaction rates which are dominated by this resonance for temperatures T=0.07-0.9 GK are calculated. Network calculations have been performed to investigate the influence of the new stellar rates on the time evolution of the Ar abundance during explosive H burning. PACS number(s): 25.40.Lw, 27.30.+t, 95.30.Cq

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“…9 Discussion and conclusions.-If one assumes the absence of mesonic exchange currents, the magnetic moment of a nuclear state can be obtained by calculating the expectation value of the operator…”

mentioning

confidence: 99%

“…The mean value from all measurements is M = -1.33(5)/^, The half-life of T l/2 = 4.5(2) nsec, as determined in this work, is in agreement with the measurements of Goosman and Kavanagh 7 who report T x / 2 = 5.15(70) nsec. Additional n-y correlation experiments were performed at the University of where I(t, 9) is the number of y rays detected as a function of time at the angle 0. The solid line represents a least-squares fit of the data by R(t) =a + b COS2(0-CJ Z /) .…”

mentioning

confidence: 99%

Magnetic Moments of the72−Mirror States inAr<

et al. 1971

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The magnetic moments of the •£•" states at 1.610 MeV in 37 Ar and 1.380 MeV in 37 K were measured by differential spin-precession methods. The moments, together with the remeasured halflives, are /i --1.33(5)/ijv anc * '11/2 = 4.6(2) nsec for 37 Ar, and pi=+ 5.2(3)M A and T 1 / 2 = 10.5(5) nsec for the 37 K state. The prediction of the Sachs mirror theorem is shown to hold, and systematic trends in^-state moments of l/ 7 / 2 -shell nuclei are examined .The early development of the shell model was dependent, in part, on the desire to explain nuclear magnetic moment values. Although the moments rarely fall on the Schmidt limits, 1 the fact that most moments lie inside the lines and near them at the closed shell is an important indication of the model's validity. Explanation of the deviations of moments from the simple predictions should be an equally important means for checking more detailed calculations.

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Nuclear Energy Levels ofK37

Cited by 46 publications

References 31 publications

Proton‐induced Thermonuclear Reaction Rates for A = 20–40 Nuclei

Proton‐induced Thermonuclear Reaction Rates for A = 20–40 Nuclei

ReactionAr36(p,γ)37
Iliadis
¹
,
Ross
²
,
Wiescher
³

et al. 1992
Phys. Rev. C
14
0
14
0
View full text Add to dashboard Cite

Magnetic Moments of the72−Mirror States inAr<

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Nuclear Energy Levels ofK37

Cited by 46 publications

References 31 publications

Proton‐induced Thermonuclear Reaction Rates for A = 20–40 Nuclei

Proton‐induced Thermonuclear Reaction Rates for A = 20–40 Nuclei

ReactionAr36(p,γ)37Iliadis1, Ross2, Wiescher3 et al. 1992Phys. Rev. C140140View full textAdd to dashboardCite

Magnetic Moments of the72−Mirror States inAr<

Contact Info

Product

Resources

About

ReactionAr36(p,γ)37
Iliadis
¹
,
Ross
²
,
Wiescher
³

et al. 1992
Phys. Rev. C
14
0
14
0
View full text Add to dashboard Cite