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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/185617
Search for the decay D-0 -> pi(+)pi(-)mu(+)mu(-)
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A search for the D0→ π +π −µ +µ − decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated luminosity of 1.0 fb−1 recorded by the LHCb experiment at a centreof-mass energy of 7 TeV. No signal is observed and an upper limit on the relative branching fraction with respect to the resonant decay mode D0→ π +π −φ(→ µ +µ −), under the assumption of a phase-space model, is found to be B(D0→ π +π −µ +µ −)/B(D0 → π +π −φ(→ µ +µ −)) < 0.96 at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to be B(D0→ π +π −µ +µ −) < 5.5 × 10−7 at 90% confidence level. This is the most stringent to date.
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CAMBONI, Alessandro, et al. Search for the decay D-0 -> pi(+)pi(-)mu(+)mu(-). Physics Letters B. 2014. Vol. 728, num. 234-243. ISSN 0370-2693. [consulted: 8 of October of 2026]. Available at: https://hdl.handle.net/2445/185617