Matches in SemOpenAlex for { <https://semopenalex.org/work/W2614239680> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2614239680 endingPage "1300" @default.
- W2614239680 startingPage "1294" @default.
- W2614239680 abstract "The ${mathrm{Li}}^{7}(p, n)$ total cross section has been measured in detail from threshold to 2.5-Mev proton energy. Between 1.88 and 1.92 Mev the cross section follows the equation for a very broad ${2}^{ensuremath{-}}$ resonance and for $s$-wave particles: ${ensuremath{sigma}}_{mathrm{pn}}=frac{(frac{5}{2})ensuremath{pi}{ensuremath{lambda}}^{2}x}{{(1+x)}^{2}}$, where $x=frac{{ensuremath{Gamma}}_{n}}{{ensuremath{Gamma}}_{p}}=1$ at 50 kev above threshold. The remainder of the cross section up to 2.35 Mev is fitted by this level and the ${3}^{+}$ level at 2.25 Mev. The neutron reduced width exceeds that of the proton by a factor of about five for both the ${2}^{ensuremath{-}}$ and ${3}^{+}$ levels; this is surprising for the self-mirror nucleus ${mathrm{Be}}^{8}$. A small dip is observed just above neutron threshold in the yield of 478-kev gamma rays from ${mathrm{Li}}^{7}(p, {p}^{ensuremath{'}}ensuremath{gamma})$. The shape of these data support the assumption of the broad ${2}^{ensuremath{-}}$ neutron producing resonance with ${ensuremath{Gamma}}_{p}>0.5$ Mev. No anomaly is observed in the yield of Li capture gamma rays at neutron threshold; the 2.10-Mev resonance in this reaction (which probably is due to a ${3}^{ifmmodepmelsetextpmfi{}}$ level) yields mainly 16-Mev gamma rays leading to the 2.9-Mev ${2}^{ifmmodepmelsetextpmfi{}}$ level in ${mathrm{Be}}^{8}$. The ratio of 16 to 19 Mev gamma rays is $frac{3}{2}$ at both 1.7- and 2.5-Mev proton energy. The behavior of the ${mathrm{Li}}^{7}(p, n)$ extrapolated threshold was calculated as a function of target thickness and proton energy spread; shifts in the extrapolated thresholds and the distances between them and true threshold were less than one kev. The extrapolated threshold of a textonehalf{}-kev target taken with a proton energy spread of 1 kev was observed to be textonehalf{} kev lower in proton energy than a thick-target threshold." @default.
- W2614239680 created "2017-05-26" @default.
- W2614239680 creator A5003844482 @default.
- W2614239680 creator A5018123872 @default.
- W2614239680 creator A5039674359 @default.
- W2614239680 creator A5041758019 @default.
- W2614239680 creator A5073160156 @default.
- W2614239680 date "1957-12-01" @default.
- W2614239680 modified "2023-10-17" @default.
- W2614239680 title "<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant=normal>Li</mml:mi></mml:mrow><mml:mrow><mml:mn>7</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mo>(</mml:mo><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mi> </mml:mi><mml:mi>n</mml:mi><mml:mo>)</mml:mo></mml:math>, (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mi> </mml:mi><mml:mrow><mml:msup><mml:mrow><…" @default.
- W2614239680 cites W2010705962 @default.
- W2614239680 cites W2021671112 @default.
- W2614239680 cites W2034454858 @default.
- W2614239680 cites W2058311828 @default.
- W2614239680 cites W2059923373 @default.
- W2614239680 cites W2062466586 @default.
- W2614239680 cites W2086180398 @default.
- W2614239680 cites W2256462260 @default.
- W2614239680 cites W2297561133 @default.
- W2614239680 cites W2331786559 @default.
- W2614239680 cites W2582717733 @default.
- W2614239680 cites W3019715863 @default.
- W2614239680 cites W3020873984 @default.
- W2614239680 doi "https://doi.org/10.1103/physrev.108.1294" @default.
- W2614239680 hasPublicationYear "1957" @default.
- W2614239680 type Work @default.
- W2614239680 sameAs 2614239680 @default.
- W2614239680 citedByCount "85" @default.
- W2614239680 countsByYear W26142396802013 @default.
- W2614239680 countsByYear W26142396802014 @default.
- W2614239680 countsByYear W26142396802015 @default.
- W2614239680 countsByYear W26142396802016 @default.
- W2614239680 countsByYear W26142396802017 @default.
- W2614239680 countsByYear W26142396802018 @default.
- W2614239680 countsByYear W26142396802019 @default.
- W2614239680 countsByYear W26142396802020 @default.
- W2614239680 countsByYear W26142396802021 @default.
- W2614239680 crossrefType "journal-article" @default.
- W2614239680 hasAuthorship W2614239680A5003844482 @default.
- W2614239680 hasAuthorship W2614239680A5018123872 @default.
- W2614239680 hasAuthorship W2614239680A5039674359 @default.
- W2614239680 hasAuthorship W2614239680A5041758019 @default.
- W2614239680 hasAuthorship W2614239680A5073160156 @default.
- W2614239680 hasConcept C121332964 @default.
- W2614239680 hasConcept C139210041 @default.
- W2614239680 hasConcept C152568617 @default.
- W2614239680 hasConcept C184779094 @default.
- W2614239680 hasConcept C185544564 @default.
- W2614239680 hasConcept C186370098 @default.
- W2614239680 hasConcept C54516573 @default.
- W2614239680 hasConcept C62520636 @default.
- W2614239680 hasConceptScore W2614239680C121332964 @default.
- W2614239680 hasConceptScore W2614239680C139210041 @default.
- W2614239680 hasConceptScore W2614239680C152568617 @default.
- W2614239680 hasConceptScore W2614239680C184779094 @default.
- W2614239680 hasConceptScore W2614239680C185544564 @default.
- W2614239680 hasConceptScore W2614239680C186370098 @default.
- W2614239680 hasConceptScore W2614239680C54516573 @default.
- W2614239680 hasConceptScore W2614239680C62520636 @default.
- W2614239680 hasIssue "5" @default.
- W2614239680 hasLocation W26142396801 @default.
- W2614239680 hasOpenAccess W2614239680 @default.
- W2614239680 hasPrimaryLocation W26142396801 @default.
- W2614239680 hasRelatedWork W1597142384 @default.
- W2614239680 hasRelatedWork W1889100939 @default.
- W2614239680 hasRelatedWork W1971262019 @default.
- W2614239680 hasRelatedWork W197334013 @default.
- W2614239680 hasRelatedWork W2004683810 @default.
- W2614239680 hasRelatedWork W2015892918 @default.
- W2614239680 hasRelatedWork W2069062046 @default.
- W2614239680 hasRelatedWork W2092197404 @default.
- W2614239680 hasRelatedWork W2092870811 @default.
- W2614239680 hasRelatedWork W2783667062 @default.
- W2614239680 hasVolume "108" @default.
- W2614239680 isParatext "false" @default.
- W2614239680 isRetracted "false" @default.
- W2614239680 magId "2614239680" @default.
- W2614239680 workType "article" @default.