Donoghue, JFGolowich, EugeneHolstein, BRTRAMPETIC, J2024-04-262024-04-261986https://hdl.handle.net/20.500.14394/40757Published version is located at http://prd.aps.org/abstract/PRD/v33/i1/p179_1We estimate the size of dispersive effects in ΔC=2 interactions and find that they represent in fact the dominant components of D0-D¯0 mixing. The box diagram is suppressed by several orders of magnitude due to the small values of light-quark masses. Crucial to this argument is a discussion of how the Glashow-Iliopoulos-Maiani mechanism works in the dispersive sector.Physical Sciences and Mathematicsarticle