TL;DR
This paper reviews the theoretical understanding of D0 meson mixing within the Standard Model and explores how recent experimental data constrains various New Physics models, highlighting the impact on model parameter spaces.
Contribution
It provides a comprehensive analysis of D0 mixing in the SM and updates constraints on 17 out of 21 NP models based on recent measurements of Delta M_D.
Findings
Recent Delta M_D measurements tighten NP model constraints
Standard Model contributions analyzed at quark and hadron levels
Significant restrictions on NP parameter spaces derived
Abstract
We discuss Standard Model (SM) and New Physics (NP) descriptions of D0 mixing. The SM part of the discussion addresses both quark level and hadron level contributions. The NP part describes our recent works on the rate difference Delta Gamma_D and the mass difference Delta M_D. In particular, we describe how the recent experimental determination of Delta M_D is found to place tightened restrictions on parameter spaces for 17 of 21 NP models considered in a recent paper by Hewett, Pakvasa, Petrov and myself.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Cosmology and Gravitation Theories