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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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