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	Author	LHCb Collaboration (Aaij, R. et al); Fernandez Casani, A.; Jaimes Elles, S.J.; Jashal, B.K.; Libralon, S.; Martinez-Vidal, F.; Mazorra de Cos, J.; Oyanguren, A.; Rebollo De Miguel, M.; Sanderswood, I.; Zhuo, J.
	Title	Search for D0 meson decays to π+π- e+e- and K+K- e+e- final states			Type	Journal Article
	Year	2025	Publication	Physical Review D	Abbreviated Journal	Phys. Rev. D
	Volume	111	Issue		Pages	L091101 - 13pp
	Keywords
	Abstract	A search for D-0 meson decays to the pi(+)pi(-) e(+)e(-) and K(+)K(-)e(+)e(-) final states is reported using a sample of proton-proton collisions collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb(-1). The decay D-0 -> pi(+)pi(-) e(+)e(-) is observed for the first time when requiring that the two electrons are consistent with coming from the decay of a phi or rho(0)/omega meson. The corresponding branching fractions are measured relative to the D-0 -> K-pi(-) [e(+)e(-)](rho 0/omega) decay, where the two electrons are consistent with coming from the decay of a rho(0) or omega meson. No evidence is found for the D-0 -> K(+)K(-)e(+)e(-) decay and world-best limits are set on its branching fraction. The results are compared to, and found to be consistent with, the branching fractions of the D-0 -> pi(+)pi(-)mu(+)mu(-) and D-0 -> K+K-mu(+)mu(-) decays recently measured by LHCb and confirm lepton universality at the current precision.
	Address	[Bonacci, R. B.; Dekkers, S.; Egede, U.; Fujii, Y.; Harris, T. H.; Henderson, R. D. L.; Lane, J. J.; Liu, F. L.; Monk, M.; Song, R.; Walton, E. J.; Ward, J. A.] Monash Univ, Sch Phys & Astron, Melbourne, Vic, Australia
	Corporate Author				Thesis
	Publisher	Amer Physical Soc	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	2470-0010	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:001639641500001			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	7064
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