Garrido Beltrán, LluísGascón Fora, DavidGraciani Díaz, RicardoGraugés Pous, EugeniMarin Benito, CarlaPicatoste Olloqui, EduardoRives Molina, Vicente José2017-07-142017-07-142016-02-031126-6708https://hdl.handle.net/2445/113839The first model-independent measurement of the charm mixing parameters in the decay D 0 → K S 0 π + π − is reported, using a sample of pp collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb−1 at a centre-of-mass energy of 7 TeV. The measured values are x=(−0.86±0.53±0.17)×10−2,y=(+0.03±0.46±0.13)×10−2, x=(−0.86±0.53±0.17)×10−2,y=(+0.03±0.46±0.13)×10−2, where the first uncertainties are statistical and include small contributions due to the external input for the strong phase measured by the CLEO collaboration, and the second uncertainties are systematic. Discover the world's research26 p.application/pdfengcc-by (c) Garrido Beltrán, Lluís et al., 2016http://creativecommons.org/licenses/by/3.0/esOscil·lacionsHadronsQuarksOscillationsHadronsQuarksinfo:eu-repo/semantics/article6587252017-07-14info:eu-repo/semantics/openAccess