Measurement of the resonance at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="italic">E</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="italic">R</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>=1422 keV in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Ar</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>36</mml:

Iliadis, Christian; Höhne, J.; Käppeler, F.; Meißner, J.; Trautvetter, H. P.; Wiescher, M.

doi:10.1103/physrevc.48.r1479

Cited by 15 publications

(13 citation statements)

References 21 publications

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“…I'"/I'~= 1/40, obtained by Iliadis et al[9], lies just to the right of this line. The horizontal line in (a) is the best estimate given by Bahcall and Holstein[21].…”

supporting

confidence: 50%

“…The tightest lower limit came from assuming isospin invariance for GT strength in the 3.239-MeV state in K and the 3.171 MeV in Ar. It was found that the recent measurement of Hiadis et al [9] was within the tightest limits.…”

Section: Discussionmentioning

confidence: 82%

“…Their paper did not show calculations of spectra for K and Ar, but [9] have measured the resonance strength for the 3.239-MeV state of srK, allowing them to determine I'z/I'~= 1/40. This value is within our tighter limit, indicating that the GT strength for this state is fairly isospin invariant.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of Gamow-Teller strength inAr37andK
Aufderheide¹,
Bloom²,
Resler³
et al. 1994
Phys. Rev. C
27
0
15
0
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We compare the Gamow-Teller strength distributions for the A = 37 system as measured by the Ca P+ decay experiment with "Cl (p, n) experiments, considering the efFect of suppression of P-delayed protons from the 3.239-MeV state in K. We determine a range of values for the suppression of proton emission from this state for which the two measurements of strength are consistent. Recent studies of this state support this suppression and the amount of suppression is within our allowed range. Using the experimentally determined value for the suppression we are able to determine neutrino cross sections on Cl from B solar neutrinos, supernova neutrinos, and p+ decay neutrinos. Our cross section for ls+ decay neutrinos is found to be 20% larger than the estimates of Bahcall, because of high-lying strength only recently confirmed by the Ca P+ decay experiment.PACS number(s): 25.4Q. Ep, 23.20.Lv, 96.60.Kx, 27.30.+t I

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“…I'"/I'~= 1/40, obtained by Iliadis et al[9], lies just to the right of this line. The horizontal line in (a) is the best estimate given by Bahcall and Holstein[21].…”

supporting

confidence: 50%

Section: Discussionmentioning

confidence: 82%

See 1 more Smart Citation

Comparison of Gamow-Teller strength inAr37andK
Aufderheide¹,
Bloom²,
Resler³
et al. 1994
Phys. Rev. C
27
0
15
0
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“…At lower temperatures, the uncertainties amount to up to 8 orders of magnitude, mainly because the adopted experimental upper limits of in the energy region keV are rather uc pa E p \ 550È860 high. Note that the 36Ar level at keV corresponding to keV was accidentally omitted E x \ 8887 E R cm \ 381 in Table 36f of Endt (1998 Iliadis et al 1992b ;Iliadis et al 1993b). The measured strengths have been normalized by using the results listed in Table 1.…”

Section: B13 the 35cl( P C)36ar Reactionmentioning

confidence: 99%

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

Iliadis

D’Auria

Starrfield

et al. 2001

ASTROPHYS J SUPPL S

284

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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“…These results are consistent with those from several recent experiments. Iliadis et al [7] obtained a resonance strength for the 3.24 MeV level of wp = wF~F"/F = (6.0+1.5) x 10 eV. Assuming its p-ray width is equal to that of the isobaric analog level in Ar (F~= 8.2 meV) they concluded that F~/F"=40.…”

Section: A Recentmentioning

confidence: 98%

γ decays of proton unbound levels inK37

1995

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Large discrepancies have been reported between the Gamow-Teller strengths determined from Ca P-delayed proton decay, and the isospin-analog strengths deduced from "Cl(p, n) studies. Some of these discrepancies could be removed if the Ca daughter level at 3.24 MeV in K had I'~forty times bigger than its I'", and not negligibly small as assumed in the initial analysis of the Ca P decay. We studied proton and p-ray branching ratios of low-lying K levels populated via the Ca(p, o) reaction. We find that the 3.24 MeV level has I~/1"")8, and that the 2.75 and 3.08 MeV levels have I'~/ I'"= 0.52 + 0.23 and I'~/I'"= 0.41 6 0.014, respectively. In addition we identified new K levels at E = 3.272 + 0.002 and 2.967 + 0.002 MeV. PACS number(s): 23.20.Lv, 21.10.Hw, 27.30.+t The reduced Gamow-Teller transition strength B(GT) for neutrino capture on Cl into a given state in Ar should be equal to the corresponding B(GT) for Ca P decay to the analog level in K if isospin is a valid symmetry. Several surprising difFerences [1] have been observed in the Cai K* B(GT)'s measured by Pdelayed proton emission [2] and the Cl~A r* B(GT)'s deduced from intermediate-energy zero-degree Cl(p, n) cross sections [3]. In particular, the Ca -+ K transition to the second 5/2+ excited state at E =3.24 MeV was reported to be forty times weaker than the strength assigned to the Ar analog level at E =3.17 MeV in

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Measurement of the resonance atER=1422 keV inAr36

Cited by 15 publications

References 21 publications

Comparison of Gamow-Teller strength inAr37andK
Aufderheide¹,
Bloom²,
Resler³
et al. 1994
Phys. Rev. C
27
0
15
0
View full text Add to dashboard Cite

Comparison of Gamow-Teller strength inAr37andK
Aufderheide¹,
Bloom²,
Resler³
et al. 1994
Phys. Rev. C
27
0
15
0
View full text Add to dashboard Cite

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

γ decays of proton unbound levels inK37

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Measurement of the resonance atER=1422 keV inAr36

Cited by 15 publications

References 21 publications

Comparison of Gamow-Teller strength inAr37andKAufderheide1, Bloom2, Resler3 et al. 1994Phys. Rev. C270150View full textAdd to dashboardCite

Comparison of Gamow-Teller strength inAr37andKAufderheide1, Bloom2, Resler3 et al. 1994Phys. Rev. C270150View full textAdd to dashboardCite

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

γ decays of proton unbound levels inK37

Contact Info

Product

Resources

About

Comparison of Gamow-Teller strength inAr37andK
Aufderheide¹,
Bloom²,
Resler³
et al. 1994
Phys. Rev. C
27
0
15
0
View full text Add to dashboard Cite

Comparison of Gamow-Teller strength inAr37andK
Aufderheide¹,
Bloom²,
Resler³
et al. 1994
Phys. Rev. C
27
0
15
0
View full text Add to dashboard Cite