New Physics and CP Violation in Singly Cabibbo Suppressed D Decays

Abstract

We analyze various theoretical aspects of CP violation in singly Cabibbo suppressed (SCS) D-meson decays, such as $D\to KK,\pi \pi$. In particular, we explore the possibility that CP asymmetries will be measured close to the present level of experimental sensitivity of $O(10^{-2})$. Such measurements would signal new physics. We make the following points: (i) The mechanism at work in neutral D decays could be indirect or direct CP violation (or both). (ii) One can experimentally distinguish between these possibilities. (iii) If the dominant CP violation is indirect, then there are clear predictions for other modes. (iv) Tree-level direct CP violation in various known models is constrained to be much smaller than $10^{-2}$. (v) SCS decays, unlike Cabibbo favored or doubly Cabibbo suppressed decays, are sensitive to new contributions from QCD penguin operators and especially from chromomagnetic dipole operators. This point is illustrated with supersymmetric gluino-squark loops, which can yield direct CP violating effects of $O(10^{-2})$.

36 pages, 5 figures

References in corpus (40)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• R-parity violating supersymmetry
• QCD factorization for B->PP and B->PV decays
• QCD Factorization in B -> pi K, pi pi Decays and Extraction of Wolfenstein Parameters
• Mass Matrix Models: The Sequel
• Should Squarks Be Degenerate?
• Predictions From A U(2) Flavour Symmetry In Supersymmetric Theories
• Horizontal Symmetries for the Supersymmetric Flavor Problem
• Phenomenology of models with more than two Higgs doublets
• Hints of large tan(beta) in flavour physics
• Flavor Symmetries and The Problem of Squark Degeneracy
• Bounds on $\Delta B=1$ Couplings in the Supersymmetric Standard Model
• SU(3) Breaking and D0-D0bar Mixing
• Semileptonic decays of $D$ mesons in three-flavor lattice QCD
• The $D^0-{\bar{D}}^0$ mass difference from a dispersion relation
• D^0 - D^0-bar Oscillations as a Probe of Quark-Hadron Duality
• QCD Corrections to Flavor-Changing Neutral Currents in the Supersymmetric Standard Model
• Lessons from CLEO and FOCUS Measurements of D0-anti-D0 Mixing Parameters
• Flavour changing neutral currents and CP violating processes in generalized supersymmetric theories
• The Role of CP violation in D0 anti-D0 Mixing
• Lifetime Differences, direct CP Violation and Partial Widths in D0 Meson Decays to K+K- and pi+pi-
• Bounds on $\Delta B=1$ Couplings in the Supersymmetric Standard Model
• Quark-Squark Alignment Revisited
• Study of Semileptonic Charm Decays D^0 --> pi^- ell^+ nu and D^0 --> K^- ell^+ nu
• Measurement of Partial Widths and Search for Direct CP Violation in $D^0$ Meson Decays to $K^{-}{K}^{+}$ and ${\pi }^{-}{\pi }^{+}$
• Signals of Supersymmetric Flavour Models in B Physics
• Limits on D0-D0bar Mixing and CP Violation from the Ratio of Lifetimes for Decay to K-pi+, K-K+, and pi-pi+
• A Supersymmetric Theory of Flavor and R Parity
• Fermion masses and symmetry breaking of a U(2) flavour symmetry
• New Physics Effects in Doubly Cabibbo Suppressed D Decays
• Search for CP Violation in the decays D+ -> K_S pi+ and D+ -> K_S K+
• Search for CP Violation in $D^0\to K_S^0{\pi }^0$, $D^0\to {\pi }^0{\pi }^0$ and $D^0\to K_S^0{K}_S^0$
• Direct Measurement of the Pseudoscalar Decay Constant fD+
• The mass insertion approximation without squark degeneracy
• Gluino-squark contributions to CP violations in the kaon system
• A search for CP violation and a measurement of the relative branching fraction in D+ -> KKpi decays
• Measuring the Relative Strong Phase in $D^0\to K^{\ast +}{K}^{-}$ and $D^0\to K^{\ast -}{K}^{+}$ Decays
• Interpreting experimental bounds on D^0 - \bar{D^0} mixing in the presence of CP violation

Cited by in corpus (183)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• QCD and strongly coupled gauge theories: challenges and perspectives
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Observation of $CP$ violation in charm decays
• Implications of LHCb measurements and future prospects
• Evidence for CP violation in time-integrated D0 -> h-h+ decay rates
• Branching ratios and direct CP asymmetries in $D\to PP$ decays
• Size of direct CP violation in singly Cabibbo-suppressed D decays
• On Partial Compositeness and the CP asymmetry in charm decays
• Direct CP violation in two-body hadronic charmed meson decays
• Implications of the LHCb Evidence for Charm CP Violation
• A consistent picture for large penguins in D -> pi+ pi-, K+ K-
• Charm Meson Decays
• CP asymmetries in singly-Cabibbo-suppressed $D$ decays to two pseudoscalar mesons
• Measurement of $CP$ asymmetry in $D^0\to K^{-}{K}^{+}$ and $D^0\to {\pi }^{-}{\pi }^{+}$ decays
• SU(3) symmetry breaking and CP violation in D -> PP decays
• SU(3) Sum Rules for Charm Decay
• A Simple Flavor Protection for RS
• Measurement of the difference of CP-violating asymmetries in D0 -> K+K- and D0 ->pi+pi- decays at CDF
• SU(3)-Flavor Anatomy of Non-Leptonic Charm Decays
• Measurement of CP--violating asymmetries in D0 --> pi+ pi- and D0 --> K+K- decays at CDF
• Testing New Indirect CP Violation
• New Physics contributions to the lifetime difference in D0-anti-D0 mixing
• Search for CP Violation in the Decays D0 --> K- K+ and D0 --> pi- pi+
• The Emergence of the $\Delta U=0$ Rule in Charm Physics
• Branching ratios and direct CP asymmetries in $D\to PV$ decays
• Direct CP violation in charm and flavor mixing beyond the SM
• Measurement of CP asymmetry in Cabibbo suppressed D0 decays
• Direct CP asymmetry in $D\to {\pi }^{-}{\pi }^{+}$ and $D\to K^{-}{K}^{+}$ in QCD-based approach
• Measurement of the D+/- production asymmetry in 7 TeV pp collisions
• New Physics at a Super Flavor Factory
• Testing for new physics in singly Cabibbo suppressed D decays
• On Indirect CP Violation and Implications for D0-\overline{D0} and Bs -\overline{Bs} mixing
• Study of decay dynamics and $CP$ asymmetry in $D^{+}\to K_L^0{e}^{+}{\nu }_e$ decay
• Search for direct CP violation in D0 -> h- h+ modes using semileptonic B decays
• On $SU(3{)}_F$ Breaking through Final State Interactions and CP Asymmetries in $D\to PP$ Decays
• Lessons from Recent Measurements of D-\bar D Mixing
• Measurement of the difference of time-integrated CP asymmetries in $D^0\to K^{-}{K}^{+}$ and $D^0\to {\pi }^{-}{\pi }^{+}$ decays
• Shedding light on CP violation in the charm system via D to V gamma decays
• Charm mixing in the model-independent analysis of correlated D0-D0bar decays
• CP Violation in $D^0\to K_S{K}_S$
• Sum Rules of Charm CP Asymmetries beyond the SU(3)${}_F$ Limit
• Charming CP Violation and Dipole Operators from RS Flavor Anarchy
• Implications of the LHCb discovery of CP violation in charm decays
• Search for CP Violation in Neutral D Meson Cabibbo-suppressed Three-body Decays
• Measurement of D0-anti-D0 Mixing using the Ratio of Lifetimes for the Decays D0 --> K-pi+, K-K+, and pi-pi+
• The BESIII Physics Programme
• Conclusions from CDF Results on CP Violation in D^0 \to π^+π^-, K^+K^- and Future Tasks
• Measurement of the Ds+ - Ds- production asymmetry in 7 TeV pp collisions
• Measurement of $D^0$-$\overline{D}{}^0$ Mixing and Search for Indirect $CP$ Violation Using $D^0\to K_S^0{\pi }^{+}{\pi }^{-}$ Decays
• Measurement of $CP$ asymmetry in $D^0\to K^{-}{K}^{+}$ decays
• Exploiting CP-asymmetries in rare charm decays
• Search for CP violation in the decays $D_{(s)}^{+}\to K_S^0{\pi }^{+}$ and $D_{(s)}^{+}\to K_S^0{K}^{+}$
• On the interplay of direct and indirect CP violation in the charm sector
• Observing CP Violation in Many-Body Decays
• Search for CP violation using $T$-odd correlations in $D^0\to K^{+}{K}^{-}{\pi }^{+}{\pi }^{-}$ decays
• Search for $CP$ Violation and Measurement of the Branching Fraction in the Decay $D^0\to K_S^0{K}_S^0$
• Amplitude Analysis of the decay D^0 --> K^- K^+ pi^0
• Exploiting dijet resonance searches for flavor physics
• Mixing and $CP$ violation in the charm system
• Search for CP violation in $D^0\to {\pi }^{-}{\pi }^{+}{\pi }^0$ decays with the energy test
• Relating direct CP violation in D decays and the forward-backward asymmetry in $t\bar{t}$ production
• Sum rules for $CP$ asymmetries of charmed baryon decays in the $SU(3{)}_F$ limit
• U-Spin Sum Rules for CP Asymmetries of Three-Body Charmed Baryon Decays
• Evidence for CP Violation in the Decay $D^{+}\to K_S^0{\pi }^{+}$
• Measurement of indirect $CP$ asymmetries in $D^0\to K^{-}{K}^{+}$ and $D^0\to {\pi }^{-}{\pi }^{+}$ decays using semileptonic $B$ decays
• Dispersive and Absorptive CP Violation in $D^0-\overline{D^0}$ Mixing
• Measurement of the time-integrated $CP$ asymmetry in $D^0\to K^{-}{K}^{+}$ decays
• Enhancement of charm CP violation due to nearby resonances
• Lessons from BaBar and Belle measurements of D-Dbar mixing parameters
• Studies of the resonance structure in $D^0\to K_S^0{K}^{\pm }{\pi }^{\mp }$ decays
• Search for CP violation in $D^{+}\to K^{-}{K}^{+}{\pi }^{+}$ decays
• Search for CP Violation in the Dalitz-Plot Analysis of D+/- -> K+ K- pi+/-
• Measurement of the $CP$ violation parameter $A_{\Gamma }$ in $D^0\to K^{+}{K}^{-}$ and $D^0\to {\pi }^{+}{\pi }^{-}$ decays
• Direct CP violation in beauty and charm hadron decays
• Amplitude analysis of D0->K+K-pi+pi-
• Supersymmetric ΔA_{CP}
• Model-independent search for CP violation in D0 to K-K+pi-pi+ and D0 to pi-pi+pi+pi- decays
• Light Colored Scalar as Messenger of Up-Quark Flavor Dynamics in Grand Unified Theories
• $CP$ asymmetries in charm decays into neutral kaons
• Search for time-dependent $CP$ violation in $D^0\to K^{+}{K}^{-}$ and $D^0\to {\pi }^{+}{\pi }^{-}$ decays
• Search for $CP$ violation in ${\Xi }_c^{+}\to p{K}^{-}{\pi }^{+}$ decays using model-independent techniques
• CP violation in D meson decays: would it be a sign of new physics ?
• A $U$-Spin Anomaly in Charm CP Violation
• Search for $CP$ violation using $T$-odd correlations in $D^0\to K^{+}{K}^{-}{\pi }^{+}{\pi }^{-}$ decays
• Flavour Theory: 2009
• More Flavor SU(3) Tests for New Physics in CP Violating B Decays
• $D-\bar{D}$ mixing constraints on FCNC with a non-universal $Z^{\prime }$
• Supersymmetry phenomenology beyond the MSSM after 5/fb of LHC data
• Measurement of indirect CP-violating asymmetries in $D^0\to K^{+}{K}^{-}$ and $D^0\to {\pi }^{+}{\pi }^{-}$ decays at CDF
• Can Up FCNC solve the $\Delta A_{CP}$ puzzle?
• Simple model for large CP violation in charm decays, B-physics anomalies, muon g-2, and Dark Matter
• A Lower Bound on hadronic EDMs from CP Violation in D0-D0bar mixing in SUSY Alignment Models
• Two is better than one: The U-spin-CP anomaly in charm
• Search for $CP$ violation through an amplitude analysis of $D^0\to K^{+}{K}^{-}{\pi }^{+}{\pi }^{-}$ decays
• Measurement of the charm-mixing parameter $y_{CP}$
• Search for CP Violation in the Decay $D^{+}\to K_S^0{K}^{+}$
• Brief Review of Charm Physics
• SU(3)${}_F$ Analysis for Beauty Baryon Decays
• $K_S^0-K_L^0$ asymmetries in $D$-meson decays
• Updated measurement of decay-time-dependent CP asymmetries in $D^0\to K^{+}{K}^{-}$ and $D^0\to {\pi }^{+}{\pi }^{-}$ decays
• Search for CP Violation in D Meson Decays to phi pi+
• Search for CP violation in D+ -> phi pi+ and Ds+ -> Ks pi+ decays
• Future prospects of B physics
• Tasting Flavoured Majorana Dark Matter
• Search for CP violation using $T$-odd correlations in $D^{+}\to K^{+}{K}_S^0{\pi }^{+}{\pi }^{-}$ and $D_s^{+}\to K^{+}{K}_S^0{\pi }^{+}{\pi }^{-}$ decays
• Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays
• Searching for New Physics with Charm
• Hadronic D and D_s Meson Decays
• The Mathematical Structure of $U$-Spin Amplitude Sum Rules
• Time-dependent CP asymmetries in D and B decays
• Search for $CP$ violation in $D_s^{+}\to K_S^0{\pi }^{+}$, $D^{+}\to K_S^0{K}^{+}$ and $D^{+}\to \varphi {\pi }^{+}$ decays
• Search for $CP$ violation in the phase space of $D^0\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decays
• Search for CP Violation in the Decays $D^0\to K_S^0{P}^0$
• Shift in weak phase $\gamma$ due to CP asymmetries in $D$ decays to two pseudoscalar mesons
• Observation of $D^{+}\to K^{+}{\eta }^{(\prime )}$ and Search for CP Violation in $D^{+}\to {\pi }^{+}{\eta }^{(\prime )}$ Decays
• Observation of CP violation in $D^0\to K^{-}{\pi }^{+}$ as a smoking gun for New Physics
• Measurement of the ratio B(D0->pi+pi-pi0)/B(D0->K-pi+pi0) and the time-integrated CP asymmetry in D0->pi+pi-pi0
• B^\pm -> D K^\pm with direct CP violation in charm
• Non-leptonic decays of Charmed mesons into two Pseudoscalars
• Measurement of $CP$ asymmetries in $D^{\pm }\to {\eta }^{\prime }{\pi }^{\pm }$ and $D_s^{\pm }\to {\eta }^{\prime }{\pi }^{\pm }$ decays
• First Measurement of the Absolute Branching Fraction of $\Lambda \to p{\mu }^{-}{\bar{\nu }}_{\mu }$
• Asymmetries from the interference between Cabibbo-favored and doubly-Cabibbo-suppressed D decays
• TASI 2009 Lectures - Flavor Physics
• Earth mover's distance as a measure of CP violation
• Measuring $CP$ violation and mixing in charm with inclusive self-conjugate multibody decay modes
• First measurement of $\mathbf{T}$-odd moments in ${\mathbf{D}}^0\to {\mathbf{K}}_{\mathbf{S}}^0{\mathbf{\pi }}^{+}{\mathbf{\pi }}^{-}{\mathbf{\pi }}^0$ decays
• Light Axigluon Contributions to b-bbar and c-cbar Asymmetry and Constraints on Flavor Changing Axigluon Currents
• Search for $CP$ violation in the phase space of $D^0\to {\pi }^{-}{\pi }^{+}{\pi }^0$ decays with the energy test
• Measurement of branching fractions and $CP$ asymmetries for $D_s^{+}\to K^{+}(\eta ,{\pi }^0)$ and $D_s^{+}\to {\pi }^{+}(\eta ,{\pi }^0)$ decays at Belle
• Search for $CP$ violation with kinematic asymmetries in the $D^0\to K^{+}{K}^{-}{\pi }^{+}{\pi }^{-}$ decay
• New Experiments with Antiprotons
• Generation of isospin sum rules in heavy hadron weak decays
• Recent advances in charm mixing and $CP$ violation at LHCb
• Novel method for the identification of the production flavor of neutral charmed mesons
• Colored scalars and the neutron electric dipole moment
• Analysis of $CP$ violation in $D^0\to K^{+}{K}^{-}{\pi }^0$
• Nonuniversality of indirect CP asymmetries in $D\to \pi \pi ,KK$ decays
• Accurate measurement of the D0-D0bar mixing parameters
• Measurement of branching fractions and search for $CP$ violation in $D^0\to {\pi }^{+}{\pi }^{-}\eta$, $D^0\to K^{+}{K}^{-}\eta$, and $D^0\to \varphi \eta$ at Belle
• Charm Meson Mixing: An Experimental Review
• Long distance contributions to neutral $D$-meson mixing from lattice QCD
• CP violation in charm
• Search for $CP$ violation in $D_{(s)}^{+}\to K^{-}{K}^{+}{K}^{+}$ decays
• Experimental constraints from flavour changing processes and physics beyond the Standard Model
• Review of Physics Results from the Tevatron: Heavy Flavor Physics
• Measurement of $D^0-{\overline{D}}^0$ mixing and search for $CP$ violation with $D^0\to K^{+}{\pi }^{-}$ decays
• New physics in singly Cabibbo-suppressed D decays
• D0-anti-D0 Mixing and CP Violation in D0 vs anti-D0 to K*(+-) K(-+) Decays
• Measurement of the time-integrated CP asymmetry in $D^0\to K_S^0{K}_S^0$ decays using Belle and Belle II data
• Search for $CP$ violation in $D_{(s)}^{+}\to K^{+}{K}_S^0{h}^{+}{h}^{-}$ $(h=K,\pi )$ decays and observation of the Cabibbo-suppressed decay $D_s^{+}\to K^{+}{K}^{-}{K}_S^0{\pi }^{+}$
• Recent results on hot topics from Belle
• On the difference of time-integrated $CP$ asymmetries in $D^0\to K^{+}{K}^{-}$ and $D^0\to {\pi }^{+}{\pi }^{-}$ decays: unparticle physics contribution
• Measurement of the CP asymmetry in $D^{+}\to {\pi }^{+}{\pi }^0$ decays at Belle II
• Implications of the evidence for direct $\mathbf{CP}$ violation in $D\to {\pi }^{+}{\pi }^{-}$ decays
• Constraining unparticle physics from $CP$ violation in Cabibbo-favored decays of D mesons
• Measurement of $CP$ violation observables in $D^{+}\to K^{-}{K}^{+}{\pi }^{+}$ decays
• Proposed New Antiproton Experiments at Fermilab
• Observation of CP violation in charm decays at LHCb
• Charm Mixing and CP-violations - Theory
• Search for $\text{CP}$ violation in the phase space of $D^0\to K_S^0{K}^{\pm }{\pi }^{\mp }$ decays with the energy test
• Search for $CP$ violation in ${\Xi }_c^{+}\to {\Sigma }^{+}{h}^{+}{h}^{-}$ and ${\Lambda }_c^{+}\to p{h}^{+}{h}^{-}$ at Belle II
• Measurement of $CP$ asymmetry in $D^0\to K_{\mathrm{S}}^0{K}_{\mathrm{S}}^0$ decays with Run 3 data
• Measurement of the branching fraction and search for $CP$ violation in $D^0\to K_S^0{K}_S^0{\pi }^{+}{\pi }^{-}$ decays at Belle
• A Review of $CP$ Violation Measurements in Charm at LHCb
• Bargmann Invariants and Correlated Geometric CP-Violating Structures in Neutral Meson Systems
• Searches for CP Violation in charm at LHCb
• Prospects for Antiproton Experiments at Fermilab
• Measurement of the time-integrated $CP$ asymmetry in $D^0\to {\pi }^0{\pi }^0$ decays at Belle II
• Distinguishing the right-handed up/charm quarks from top quark via discrete symmetries in the standard model extensions
• Measurement of the branching fraction and search for CP violation in $D^0\to K_S^0{K}_S^0{\pi }^{+}{\pi }^{-}$ decays at Belle
• Prospect of D0 mixing and CPV at LHCb
• Measurement of CP Violation in $D^0/{\bar{D}}^0$
• Summary of Working Group 5: Physics with Heavy Flavours
• CKM studies in the charm sector
• Mixing and CP Violation in Decays of Charm Mesons
• "I Know She Invented Fire, but What Has She Done Recently?" or "I Have Come to Praise Ch., not Bury Her!" or `On the Second Renaissance of Charm Physics'
• Measuring $D^0-{\bar{D}}^0$ mixing in $D^0({\bar{D}}^0)\to f_0(980)K^{\ast }$ and more
• Recent charm mixing results from BABAR, Belle, and CDF
• Measurement of $CP$ asymmetries in $D_{(s)}^{+}\to \eta {\pi }^{+}$ and $D_{(s)}^{+}\to {\eta }^{\prime }{\pi }^{+}$ decays
• Measurement of the $CP$ asymmetry in $D^0\to {\pi }^{+}{\pi }^{-}{\pi }^0$ decays at Belle II
• Search for $D^{+}\to K^{-}{K}_s^0{\pi }^{+}{\pi }^{+}{\pi }^0$ at Belle