Matches in SemOpenAlex for { <https://semopenalex.org/work/W2893950553> ?p ?o ?g. }
- W2893950553 abstract "The decay $eta to 3 pi$ proceeds exclusively through isospin violating operators and is therefore an excellent probe to examine the strength of isospin breaking in the strong interaction. The latter can be expressed through the quark mass ratio $Q^2 = (m_s^2 - hat{m}^2)/(m_d^2 - m_u^2)$. The main object of this thesis is to analyse the decay $eta to 3 pi$ using dispersion relations in order to extract $Q$ as well as other physical quantities. The dispersion relations are a set of integral equations that lead to a representation of the decay amplitude in terms of four unknown subtraction constants. We apply two different methods to determine these. Following the procedure of Anisovich and Leutwyler, we match our dispersive representation to the one-loop result from chiral perturbation theory, thus updating their old analysis. In addition, we also make use of the recent experimental determination of the Dalitz distribution by the KLOE collaboration to obtain information on the subtraction constants. In this way we find $Q = 21.31^{+0.59}_{-0.50}$." @default.
- W2893950553 created "2018-10-05" @default.
- W2893950553 creator A5041935851 @default.
- W2893950553 date "2018-09-26" @default.
- W2893950553 modified "2023-09-27" @default.
- W2893950553 title "Determination of the quark mass ratio $Q$ from $eta to 3 pi$" @default.
- W2893950553 cites W11505439 @default.
- W2893950553 cites W1481281915 @default.
- W2893950553 cites W1481988813 @default.
- W2893950553 cites W1524246620 @default.
- W2893950553 cites W1531639521 @default.
- W2893950553 cites W1541168977 @default.
- W2893950553 cites W1557894381 @default.
- W2893950553 cites W1579764317 @default.
- W2893950553 cites W1625053673 @default.
- W2893950553 cites W1969357047 @default.
- W2893950553 cites W1975079544 @default.
- W2893950553 cites W1975599261 @default.
- W2893950553 cites W1979874115 @default.
- W2893950553 cites W1979999846 @default.
- W2893950553 cites W1984025158 @default.
- W2893950553 cites W1984406090 @default.
- W2893950553 cites W1988704597 @default.
- W2893950553 cites W1991506785 @default.
- W2893950553 cites W1995229739 @default.
- W2893950553 cites W1996174936 @default.
- W2893950553 cites W1996996166 @default.
- W2893950553 cites W1998909324 @default.
- W2893950553 cites W2000754488 @default.
- W2893950553 cites W2005935750 @default.
- W2893950553 cites W2007108059 @default.
- W2893950553 cites W2008769196 @default.
- W2893950553 cites W2009786143 @default.
- W2893950553 cites W2011963697 @default.
- W2893950553 cites W2014632813 @default.
- W2893950553 cites W2015701416 @default.
- W2893950553 cites W2021109370 @default.
- W2893950553 cites W2022080021 @default.
- W2893950553 cites W2022433507 @default.
- W2893950553 cites W2024612631 @default.
- W2893950553 cites W2032169486 @default.
- W2893950553 cites W2033554178 @default.
- W2893950553 cites W2040588411 @default.
- W2893950553 cites W2042887674 @default.
- W2893950553 cites W2043659199 @default.
- W2893950553 cites W2045472496 @default.
- W2893950553 cites W2047822092 @default.
- W2893950553 cites W2048582972 @default.
- W2893950553 cites W2055032269 @default.
- W2893950553 cites W2062977418 @default.
- W2893950553 cites W2064370024 @default.
- W2893950553 cites W2073860915 @default.
- W2893950553 cites W2074136023 @default.
- W2893950553 cites W2081122760 @default.
- W2893950553 cites W2083415449 @default.
- W2893950553 cites W2085522314 @default.
- W2893950553 cites W2097077370 @default.
- W2893950553 cites W2100118430 @default.
- W2893950553 cites W2124882749 @default.
- W2893950553 cites W2128200938 @default.
- W2893950553 cites W2130648907 @default.
- W2893950553 cites W2133017899 @default.
- W2893950553 cites W2136764900 @default.
- W2893950553 cites W2153322267 @default.
- W2893950553 cites W2157531843 @default.
- W2893950553 cites W2161017427 @default.
- W2893950553 cites W2170771746 @default.
- W2893950553 cites W2223420584 @default.
- W2893950553 cites W2227142208 @default.
- W2893950553 cites W2227740876 @default.
- W2893950553 cites W2233033909 @default.
- W2893950553 cites W2331547492 @default.
- W2893950553 cites W2527222102 @default.
- W2893950553 cites W2595006044 @default.
- W2893950553 cites W2596690012 @default.
- W2893950553 cites W267147408 @default.
- W2893950553 cites W3018404098 @default.
- W2893950553 cites W3027364796 @default.
- W2893950553 cites W3098592762 @default.
- W2893950553 cites W3099303782 @default.
- W2893950553 cites W3121445703 @default.
- W2893950553 cites W51101845 @default.
- W2893950553 cites W604181985 @default.
- W2893950553 hasPublicationYear "2018" @default.
- W2893950553 type Work @default.
- W2893950553 sameAs 2893950553 @default.
- W2893950553 citedByCount "0" @default.
- W2893950553 crossrefType "posted-content" @default.
- W2893950553 hasAuthorship W2893950553A5041935851 @default.
- W2893950553 hasConcept C109214941 @default.
- W2893950553 hasConcept C110121322 @default.
- W2893950553 hasConcept C114614502 @default.
- W2893950553 hasConcept C121332964 @default.
- W2893950553 hasConcept C134306372 @default.
- W2893950553 hasConcept C174256460 @default.
- W2893950553 hasConcept C17744445 @default.
- W2893950553 hasConcept C180205008 @default.
- W2893950553 hasConcept C184670325 @default.
- W2893950553 hasConcept C190284468 @default.
- W2893950553 hasConcept C199539241 @default.