PoS - Proceedings of Science
Volume 314 - The European Physical Society Conference on High Energy Physics (EPS-HEP2017) - Flavour Physics and Fundamental Symmetries (Parallel Session). Conveners: Johannes Abrecht; Damir Becirevic; Philip Urquijo. Scientific Secretary: Martino Margoni
Unitarity Triangle Analysis and D meson mixing in the Standard Model and Beyond
M. Bona*, C. Alpigiani, A. Bevan, M. Ciuchini, D. Derkach, E. Franco, V. Lubicz, G. Martinelli, F. Parodi, M. Pierini, L. Silvestrini, V. Sordini, A. Stocchi, C. Tarantino, V. Vagnoni  on behalf of the UTfit Collaboration
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Pre-published on: December 12, 2017
Published on: March 20, 2018
Abstract
Flavour physics represents a unique test bench for the Standard Model (SM). New analyses performed at the LHC experiments are now providing unprecedented insights into CKM metrology and new evidences for rare decays. The CKM picture can provide very precise SM predictions through global analyses. We present here the results of the latest global SM analysis performed by the UTfit collaboration including all the most updated inputs from experiments, lattice QCD and phenomenological calculations. In addition, we update the analysis of $D$ meson mixing: we derive constraints on the parameters $M_{12}$, $\Gamma_{12}$ and $\Phi_{12}$ that describe $D$ meson mixing using all available data, allowing for CP violation. Finally, the Unitarity Triangle (UT) analysis can be used to constrain the parameter space in possible new physics (NP) scenarios. We update here also the UT analysis beyond the SM by the UTfit collaboration. All of the available experimental and theoretical information on $\Delta F=2$ processes is reinterpreted including a model-independent NP parametrisation. We determine the allowed NP contributions in the kaon, $D$, $B_d$, and $B_s$ sectors and, in various NP scenarios, we translate them into bounds for the NP scale as a function of NP couplings.
DOI: https://doi.org/10.22323/1.314.0205
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