Unparticle Physics Effects on D0-anti-D0 Mixing

Abstract

The mixing of $K^0-\overline{K^0}$, $D^0-\overline{D^0}$ and $B_{(s)}^0-\overline{B_{(s)}^0}$ provides a sensitive probe to explore new physics beyond the Standard Model. The scale invariant unparticle physics recently proposed by Georgi can induce flavor-changing neutral current and contribute to the mixing at tree level. We investigate the unparticle effects on $B^0-\overline{B^0}$ and $D^0-\overline{D^0}$ mixing. Especially, the newly observed $D^0-\overline{D^0}$ mixing sets the most stringent constraints on the coupling of the unparticle to quarks.

9 pages, some errors corrected, published version

References in corpus (5)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• The Uses of Conformal Symmetry in QCD
• SU(3) Breaking and D0-D0bar Mixing
• $D^0-\overline{D^0}$ Mixing and Rare Charm Decays

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