Problems with extracting ms from flavor breaking in hadronic τ decays
| dc.contributor.author | Maltman, Kim | en |
| dc.contributor.school | School of Chemistry and Physics : Physics and Mathematical Physics | en |
| dc.date.issued | 1998 | en |
| dc.description.abstract | A numerical error is pointed out in the existing expression for the O(αs²) longitudinal component of the squared-mass (D=2) contribution to the hadronic τ decay rate. The corrected version is found to be such that, to O(αs²), each term in the resulting series is larger than the previous one, hence ruling out the direct use of flavor breaking in hadronic τ decays as a means of extracting the strange quark mass. An alternate approach, in which one uses the model spectral functions previously developed for the strangeness-changing scalar channel (and employed in alternate sum rule analyses of ms) as input to the τ decay analysis, is shown to provide mutual consistency checks for the two different methods. The results for ms implied by τ decay data and the existing model spectral function are also presented. | en |
| dc.description.statementofresponsibility | Kim Maltman | en |
| dc.identifier.citation | Physical Review D, 1998; 58(9):093015 | en |
| dc.identifier.doi | 10.1103/PhysRevD.58.093015 | en |
| dc.identifier.issn | 0556-2821 | en |
| dc.identifier.uri | http://hdl.handle.net/2440/10913 | |
| dc.language.iso | en | en |
| dc.publisher | American Physical Society | en |
| dc.rights | © 1998 The American Physical Society | en |
| dc.title | Problems with extracting ms from flavor breaking in hadronic τ decays | en |
| dc.title.alternative | Problems with extracting ms from flavor breaking in hadronic tau decays | en |
| dc.type | Journal article | en |
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