Search for $CP$ violation in the $D^{+}\to {\pi }^{+}{\pi }^0$ decay at Belle

Abstract

We search for $CP$ violation in the charged charm meson decay $D^{+}\to {\pi }^{+}{\pi }^0$, based on a data sample corresponding to an integrated luminosity of $921\mathrm{f}{\mathrm{b}}^{-1}$ collected by the Belle experiment at the KEKB $e^{+}{e}^{-}$ asymmetric-energy collider. The measured $CP$ violating asymmetry is $[+2.31\pm 1.24(\mathrm{stat})\pm 0.23(\mathrm{syst})]\%$, which is consistent with the standard model prediction and has a significantly improved precision compared to previous results.

arXiv comment8 pages, 3 figures

References in corpus (8)

• Size of direct CP violation in singly Cabibbo-suppressed D decays
• Implications of the LHCb Evidence for Charm CP Violation
• Testing for new physics in singly Cabibbo suppressed D decays
• Measurements of D Meson Decays to Two Pseudoscalar Mesons
• CP violating asymmetries in charged D meson decays
• Evidence for CP Violation in the Decay $D^{+}\to K_S^0{\pi }^{+}$
• Search for CP violation in D^0 -> pi^0 pi^0 decays
• On the Combination Procedure of Correlated Errors

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