Search for direct CP violation in D0 -> h- h+ modes using semileptonic B decays

Abstract

A search for direct CP violation in D0 -> h- h+ (where h=K or pi) is presented using data corresponding to an integrated luminosity of 1.0 fb^-1 collected in 2011 by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The analysis uses D0 mesons produced in inclusive semileptonic b-hadron decays to the D0 mu X final state, where the charge of the accompanying muon is used to tag the flavour of the D0 meson. The difference in the CP-violating asymmetries between the two decay channels is measured to be Delta A_CP = A_CP(K-K+) - A_CP(pi-pi+) = (0.49 +- 0.30 (stat) +- 0.14 (syst)) % . This result does not confirm the evidence for direct CP violation in the charm sector reported in other analyses.

16 pages, 5 figures. Matches the published version in PLB

References in corpus (5)

• PYTHIA 6.4 Physics and Manual
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• New Physics and CP Violation in Singly Cabibbo Suppressed D Decays
• Measurement of the difference of CP-violating asymmetries in D0 -> K+K- and D0 ->pi+pi- decays at CDF
• Search for CP violation in the decay $D^{+}\to {\pi }^{-}{\pi }^{+}{\pi }^{+}$

Cited by in corpus (35)

• Observation of $CP$ violation in charm decays
• Towards the Identification of New Physics through Quark Flavour Violating Processes
• Measurement of $CP$ asymmetry in $D^0\to K^{-}{K}^{+}$ and $D^0\to {\pi }^{-}{\pi }^{+}$ decays
• Revisiting CP violation in $D\to PP$ and $VP$ decays
• Branching ratios and direct CP asymmetries in $D\to PV$ decays
• D-meson lifetimes within the heavy quark expansion
• On $SU(3{)}_F$ Breaking through Final State Interactions and CP Asymmetries in $D\to PP$ Decays
• Measurement of the CKM angle gamma from a combination of B->Dh analyses
• Sum Rules of Charm CP Asymmetries beyond the SU(3)${}_F$ Limit
• Search for CP violation in the decay $D^{+}\to {\pi }^{-}{\pi }^{+}{\pi }^{+}$
• Measurements of indirect CP asymmetries in $D^0\to K^{-}{K}^{+}$ and $D^0\to {\pi }^{-}{\pi }^{+}$ decays
• Measurement of indirect $CP$ asymmetries in $D^0\to K^{-}{K}^{+}$ and $D^0\to {\pi }^{-}{\pi }^{+}$ decays using semileptonic $B$ decays
• Direct CP violation in beauty and charm hadron decays
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Model-independent search for CP violation in D0 to K-K+pi-pi+ and D0 to pi-pi+pi+pi- decays
• CP violation in D meson decays: would it be a sign of new physics ?
• Search for CP violation in D^0 -> pi^0 pi^0 decays
• Search for CP violation in D+ -> phi pi+ and Ds+ -> Ks pi+ decays
• Heavy Flavour Physics at the LHC
• Recent Developments on the CKM Matrix
• Selected Topics in Heavy Flavour Physics
• Bounding hadronic uncertainties in $c\to u$ decays
• Nonuniversality of indirect CP asymmetries in $D\to \pi \pi ,KK$ decays
• Identifying Exclusive Displaced Hadronic Signatures in the Forward Region of the LHC
• SU(3)F in nonleptonic charm decays
• HFAG-charm averages
• Theoretical analysis of direct $CP$ violation and differential decay width in $D^{\pm }\to {\pi }^{\pm }{\pi }^{+}{\pi }^{-}$ in phase space around the resonances ${\rho }^0(770)$ and $f_0(500)$
• Theoretical Issues in Flavor Physics
• Observation of CP violation in charm decays at LHCb
• LHC: Past, Present, and Future
• Distinguishing the right-handed up/charm quarks from top quark via discrete symmetries in the standard model extensions
• Charm: Mixing, CP Violation and Rare Decays at LHCb
• CP violation in quasi-two-body $D\to VP$ decays and three-body $D$ decays mediated by vector resonances
• Measurement of CP asymmetries in $D^0\to hh$ decays
• CKM studies in the charm sector