Matches in SemOpenAlex for { <https://semopenalex.org/work/W2115560147> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W2115560147 abstract "In nuclear matter, the pion weak decay constant is separated into two components ${f}_{t}$ and ${f}_{s}$ corresponding to the time and space components of the axial-vector current. Using QCD sum rules, we compute the two decay constants from the pseudoscalar-axial vector correlation function in the matter $iensuremath{int}{d}^{4}x {e}^{mathrm{ip}ensuremath{cdot}x}〈ensuremath{rho}|T[overline{d}(x)i{ensuremath{gamma}}_{5}u(x) ifmmode bar{u}else ={u}fi{}(0){ensuremath{gamma}}_{ensuremath{mu}}{ensuremath{gamma}}_{5}d(0)]|ensuremath{rho}〉.$ It is found that the sum rule for ${f}_{t}$ satisfies the in-medium Gell-Mann--Oakes--Renner relation precisely, while the ${f}_{s}$ sum rule does not. The ${f}_{s}$ sum rule contains the non-negligible contribution from the dimension 5 condensate $〈overline{q}{mathrm{iD}}_{0}{mathrm{iD}}_{0}q{〉}_{N}+frac{1}{8}〈overline{q}{g}_{s}ensuremath{sigma}ensuremath{cdot}mathcal{G}q{〉}_{N}$ in addition to the in-medium quark condensate. Using a standard set of QCD parameters and ignoring the in-medium change of the pion mass, we obtain ${f}_{t}=105 mathrm{MeV}$ at the nuclear saturation density. The prediction for ${f}_{s}$ depends on the dimension 5 condensate and on the Borel mass. However, because of the positivity condition for the dimension 5 condensate, the operator product expansion constrains that ${f}_{s}{/f}_{t}>~1,$ which does not agree with the ``tree level'' prediction from the in-medium chiral perturbation theory. Depending on the value of the dimension 5 condensate, ${f}_{s}$ at the saturation density is found to be in the range $112--134 mathrm{MeV}$ at the Borel mass ${M}^{2}ensuremath{sim}1 {mathrm{GeV}}^{2}.$" @default.
- W2115560147 created "2016-06-24" @default.
- W2115560147 creator A5034968472 @default.
- W2115560147 date "2002-04-29" @default.
- W2115560147 modified "2023-10-18" @default.
- W2115560147 title "In-medium pion weak decay constants" @default.
- W2115560147 cites W1971702030 @default.
- W2115560147 cites W1974234687 @default.
- W2115560147 cites W1977391318 @default.
- W2115560147 cites W1985536474 @default.
- W2115560147 cites W1998702920 @default.
- W2115560147 cites W2005379694 @default.
- W2115560147 cites W2011522139 @default.
- W2115560147 cites W2016021593 @default.
- W2115560147 cites W2021109370 @default.
- W2115560147 cites W2022155795 @default.
- W2115560147 cites W2022673318 @default.
- W2115560147 cites W2028832935 @default.
- W2115560147 cites W2044707687 @default.
- W2115560147 cites W2056059849 @default.
- W2115560147 cites W2057109704 @default.
- W2115560147 cites W2060782499 @default.
- W2115560147 cites W2086499030 @default.
- W2115560147 cites W2096013182 @default.
- W2115560147 cites W2100538255 @default.
- W2115560147 cites W2147427697 @default.
- W2115560147 cites W2949537424 @default.
- W2115560147 cites W3099127249 @default.
- W2115560147 cites W3099224067 @default.
- W2115560147 cites W4211094490 @default.
- W2115560147 cites W4232958558 @default.
- W2115560147 cites W4237746299 @default.
- W2115560147 doi "https://doi.org/10.1103/physrevc.65.055201" @default.
- W2115560147 hasPublicationYear "2002" @default.
- W2115560147 type Work @default.
- W2115560147 sameAs 2115560147 @default.
- W2115560147 citedByCount "6" @default.
- W2115560147 countsByYear W21155601472012 @default.
- W2115560147 countsByYear W21155601472013 @default.
- W2115560147 crossrefType "journal-article" @default.
- W2115560147 hasAuthorship W2115560147A5034968472 @default.
- W2115560147 hasBestOaLocation W21155601472 @default.
- W2115560147 hasConcept C101583263 @default.
- W2115560147 hasConcept C109214941 @default.
- W2115560147 hasConcept C117137515 @default.
- W2115560147 hasConcept C121332964 @default.
- W2115560147 hasConcept C18199665 @default.
- W2115560147 hasConcept C206094082 @default.
- W2115560147 hasConcept C2776250685 @default.
- W2115560147 hasConcept C7602139 @default.
- W2115560147 hasConcept C88407732 @default.
- W2115560147 hasConcept C99077945 @default.
- W2115560147 hasConceptScore W2115560147C101583263 @default.
- W2115560147 hasConceptScore W2115560147C109214941 @default.
- W2115560147 hasConceptScore W2115560147C117137515 @default.
- W2115560147 hasConceptScore W2115560147C121332964 @default.
- W2115560147 hasConceptScore W2115560147C18199665 @default.
- W2115560147 hasConceptScore W2115560147C206094082 @default.
- W2115560147 hasConceptScore W2115560147C2776250685 @default.
- W2115560147 hasConceptScore W2115560147C7602139 @default.
- W2115560147 hasConceptScore W2115560147C88407732 @default.
- W2115560147 hasConceptScore W2115560147C99077945 @default.
- W2115560147 hasIssue "5" @default.
- W2115560147 hasLocation W21155601471 @default.
- W2115560147 hasLocation W21155601472 @default.
- W2115560147 hasLocation W21155601473 @default.
- W2115560147 hasOpenAccess W2115560147 @default.
- W2115560147 hasPrimaryLocation W21155601471 @default.
- W2115560147 hasRelatedWork W1495589090 @default.
- W2115560147 hasRelatedWork W1846329939 @default.
- W2115560147 hasRelatedWork W1971486956 @default.
- W2115560147 hasRelatedWork W1971538577 @default.
- W2115560147 hasRelatedWork W1975213020 @default.
- W2115560147 hasRelatedWork W1992228388 @default.
- W2115560147 hasRelatedWork W2040325626 @default.
- W2115560147 hasRelatedWork W2054544235 @default.
- W2115560147 hasRelatedWork W3104560757 @default.
- W2115560147 hasRelatedWork W3106484937 @default.
- W2115560147 hasVolume "65" @default.
- W2115560147 isParatext "false" @default.
- W2115560147 isRetracted "false" @default.
- W2115560147 magId "2115560147" @default.
- W2115560147 workType "article" @default.