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Electromagnetic penguin operators and direct CP violation in $K \to \pi l^{+} l^{-}$
Supersymmetric extensions of the Standard Model predict a large enhancement of the Wilson coefficients of the dimension-five electromagnetic penguin operators affecting the direct CP violation in K_L --> pi^0 e^+ e^- and the charge asymmetry in K^\pm --> pi^\pm l^+ l^-. Here we compute the rel...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2002
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2002/07/068 http://cds.cern.ch/record/541098 |
| _version_ | 1780898345624010752 |
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| author | D'Ambrosio, Giancarlo Gao, Dao-Neng |
| author_facet | D'Ambrosio, Giancarlo Gao, Dao-Neng |
| author_sort | D'Ambrosio, Giancarlo |
| collection | CERN |
| description | Supersymmetric extensions of the Standard Model predict a large enhancement of the Wilson coefficients of the dimension-five electromagnetic penguin operators affecting the direct CP violation in K_L --> pi^0 e^+ e^- and the charge asymmetry in K^\pm --> pi^\pm l^+ l^-. Here we compute the relevant matrix elements in the chiral quark model and compare these with the ones given by lattice calculations |
| id | cern-541098 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-5410982023-03-14T19:48:55Zdoi:10.1088/1126-6708/2002/07/068http://cds.cern.ch/record/541098engD'Ambrosio, GiancarloGao, Dao-NengElectromagnetic penguin operators and direct CP violation in $K \to \pi l^{+} l^{-}$Particle Physics - PhenomenologySupersymmetric extensions of the Standard Model predict a large enhancement of the Wilson coefficients of the dimension-five electromagnetic penguin operators affecting the direct CP violation in K_L --> pi^0 e^+ e^- and the charge asymmetry in K^\pm --> pi^\pm l^+ l^-. Here we compute the relevant matrix elements in the chiral quark model and compare these with the ones given by lattice calculationsSupersymmetric extensions of the Standard Model predict a large enhancement of the Wilson coefficients of the dimension-five electromagnetic penguin operators affecting the direct CP violation in K_L --> pi^0 e^+ e^- and the charge asymmetry in K^\pm --> pi^\pm l^+ l^-. Here we compute the relevant matrix elements in the chiral quark model and compare these with the ones given by lattice calculationshep-ph/0203087CERN-TH-2002-057INFNNA-IV-2001-26CERN-TH-2002-057INFNNA-IV-2001-026oai:cds.cern.ch:5410982002-03-08 |
| spellingShingle | Particle Physics - Phenomenology D'Ambrosio, Giancarlo Gao, Dao-Neng Electromagnetic penguin operators and direct CP violation in $K \to \pi l^{+} l^{-}$ |
| title | Electromagnetic penguin operators and direct CP violation in $K \to \pi l^{+} l^{-}$ |
| title_full | Electromagnetic penguin operators and direct CP violation in $K \to \pi l^{+} l^{-}$ |
| title_fullStr | Electromagnetic penguin operators and direct CP violation in $K \to \pi l^{+} l^{-}$ |
| title_full_unstemmed | Electromagnetic penguin operators and direct CP violation in $K \to \pi l^{+} l^{-}$ |
| title_short | Electromagnetic penguin operators and direct CP violation in $K \to \pi l^{+} l^{-}$ |
| title_sort | electromagnetic penguin operators and direct cp violation in $k \to \pi l^{+} l^{-}$ |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1088/1126-6708/2002/07/068 http://cds.cern.ch/record/541098 |
| work_keys_str_mv | AT dambrosiogiancarlo electromagneticpenguinoperatorsanddirectcpviolationinktopill AT gaodaoneng electromagneticpenguinoperatorsanddirectcpviolationinktopill |