We report on a search for the flavor-changing neutral current decays D-0-->e(+)e(-) and D-0-->mu(+)mu(-), and the lepton-flavor violating decay D-0-->e(+/-)mu(-/+). The measurement is based on 122 fb(-1) of data collected by the BABAR detector at the SLAC PEP-II asymmetric e(+)e(-) collider. No evidence is found for any of the decays. The upper limits on the branching fractions, at the 90% confidence level, are 1.2x10(-6) for D-0-->e(+)e(-), 1.3x10(-6) for D-0-->mu(+)mu(-), and 8.1x10(-7) for D-0-->e(+/-)mu(-/+).

Search for flavor-changing neutral current and lepton-flavor violating decays of D-0 -> l(+)l(-)

ANDREOTTI, Mirco;AZZOLINI, Virginia;CALABRESE, Roberto;CIBINETTO, Gianluigi;LUPPI, Eleonora;NEGRINI, Matteo;SARTI, Alessio;
2004

Abstract

We report on a search for the flavor-changing neutral current decays D-0-->e(+)e(-) and D-0-->mu(+)mu(-), and the lepton-flavor violating decay D-0-->e(+/-)mu(-/+). The measurement is based on 122 fb(-1) of data collected by the BABAR detector at the SLAC PEP-II asymmetric e(+)e(-) collider. No evidence is found for any of the decays. The upper limits on the branching fractions, at the 90% confidence level, are 1.2x10(-6) for D-0-->e(+)e(-), 1.3x10(-6) for D-0-->mu(+)mu(-), and 8.1x10(-7) for D-0-->e(+/-)mu(-/+).
2004
Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, Jm; Hicheur, A; Karyotakis, Y; Lees, Jp; Tisserand, V; Zghiche, A; Palano, A; Pompili, A; Che...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1211502
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