2026-04-13T01:46:41Zhttps://recercat.cat/oai/request

oai:recercat.cat:20.500.14342/60832026-03-20T01:12:29Zcom_2072_482405com_2072_183628col_2072_482415

00925njm 22002777a 4500 dc Calvo Gomez, Miriam author Golobardes Ribé, Elisabet author Vilasis-Cardona, Xavier author LHCb Collaboration - CERN author 2026-02-26 A measurement of CP asymmetry in D0→KS0KS0 decays is reported, based on a data sample of proton-proton collisions collected with the LHCb detector in 2024 at a centre-of-mass energy of 13.6 TeV, corresponding to an integrated luminosity of 6.2 fb−1. The D0→KS0π+π− decay is used as calibration channel to cancel residual detection and production asymmetries. The time-integrated CP asymmetry for the D0→KS0KS0 mode is measured to be (Formula presented.) where the first uncertainty is statistical, and the second is systematic. This measurement represents the most precise single-experiment determination of this quantity to date. 1029-8479 https://hdl.handle.net/20.500.14342/6083 https://doi.org/10.1007/JHEP02(2026)253 Accelerator physics Circular dichroism spectroscopy Deoxy sugar Experimental nuclear physics Nuclear physics Particle physics Gran col·lisionador d'hadrons (França i Suïssa) Measurement of CP asymmetry in D0→KS0KS0 decays with Run 3 data