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Author  |
NA48/2 Collaboration (Batley, J.R. et al); Fiorini, L. | ||||
| Title | First observation and study of the K-+/- -> pi(+/-)pi(0)e(+)e(-) decay | Type | Journal Article | ||
| Year | 2019 | Publication | Physics Letters B | Abbreviated Journal | Phys. Lett. B |
| Volume | 788 | Issue | Pages | 552-561 | |
| Keywords | |||||
| Abstract | The NA48/2 experiment at CERN reports the first observation of the K-+/- -> pi(+/-)pi(0)e(+)e(-) decay from an exposure of 1.7 x 10(11) charged kaon decays recorded in 2003-2004. A sample of 4919 candidates with 4.9% background contamination allows the determination of the branching ratio in the full kinematic region, BR(K-+/- -> pi(+/-)pi(0)e(+)e(-)) = (4.24 +/- 0.14) x 10(-6). The study of the kinematic space shows evidence for a structure dependent contribution in agreement with predictions based on chiral perturbation theory. Several P- and CP-violating asymmetries are also evaluated. | ||||
| Address | [Batley, J. R.; Kalmus, G.; Lazzeroni, C.; Munday, D. J.; Slater, M. W.; Wotton, S. A.; Balev, S.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England, Email: milena.misheva@cern.ch; | ||||
| Corporate Author | Thesis | ||||
| Publisher | Elsevier Science Bv | Place of Publication | Editor | ||
| Language | English | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0370-2693 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000455364400072 | Approved | no | ||
| Is ISI | yes | International Collaboration | yes | ||
| Call Number | IFIC @ pastor @ | Serial | 3882 | ||
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