Implications of D^0-\bar D^0 Mixing for New Physics

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dc.creatorGolowich, Eugene
dc.creatorHewett, JoAnne
dc.creatorPakvasa, Sandip
dc.creatorPetrov, Alexey A.
dc.date2007-05-24
dc.date2007-09-13
dc.date.accessioned2026-07-07T10:55:49Z
dc.date.available2026-07-07T10:55:49Z
dc.descriptionWe provide a comprehensive, up-to-date analysis of possible New Physics contributions to the mass difference $ΔM_D$ in $D^0$-${\bar D}^0$ mixing. We consider the most general low energy effective Hamiltonian and include leading order QCD running of effective operators. We then explore an extensive list of possible New Physics models that can generate these operators, which we organize as including Extra Fermions, Extra Gauge Bosons, Extra Scalars, Extra Space Dimensions and Extra Symmetries. For each model we place restrictions on the allowed parameter space using the recent evidence for observation of $D$ meson mixing. In many scenarios, we find strong constraints that surpass those from other search techniques and provide an important test of flavor changing neutral currents in the up-quark sector. We also review the recent BaBar and Belle findings, and describe the current status of the Standard Model predictions of $D^0$-${\bar D}^0$ mixing.
dc.description86 pages, typos fixed
dc.identifierhttps://arxiv.org/abs/0705.3650
dc.identifierhttp://arxiv.org/abs/0705.3650
dc.identifierPhys.Rev.D76:095009,2007
dc.identifierdoi:10.1103/PhysRevD.76.095009
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186204
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleImplications of D^0-\bar D^0 Mixing for New Physics
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