Resonance catalyzed CP asymmetries in D -> P l+ l-

Abstract

Recently observed increase of direct CP asymmetry in charm meson nonleptonic decays is difficult to explain within the SM. If this effect is induced by new physics, this might be investigated in other charm processes. We propose to investigate new CP violating effects in rare decays $D\to P{\ell }^{+}{\ell }^{-}$, which arise due to the interference of resonant part of the long distance contribution and the new physics affected short distance contribution. Performing a model independent analysis, we identify as appropriate observables the differential direct CP asymmetry and partial decay width CP asymmetry. We find that in the most promising decays $D^{+}\to {\pi }^{+}{\ell }^{+}{\ell }^{-}$ and $D_s^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ the "peak-symmetric" and "peak-antisymmetric" CP asymmetries are strong phase dependent and can be of the order 1% and 10%, respectively.

arXiv comment9 pages, 4 figures, 2 tables

References in corpus (32)

• QCD Factorization for $B\to \pi \pi$ Decays: Strong Phases and CP Violation in the Heavy Quark Limit
• QCD factorization for exclusive, non-leptonic B meson decays: General arguments and the case of heavy-light final states
• New Results on B->pi, K, eta Decay Formfactors from Light-Cone Sum Rules
• Symmetries and Asymmetries of B -> K* mu+ mu- Decays in the Standard Model and Beyond
• Systematic approach to exclusive B ->V l^+l^-, V gamma decays
• Model-independent description of $B\to \pi l\nu$ decays and a determination of $|V_{ub}|$
• Heavy-to-Light Form Factors in the Final Hadron Large Energy Limit of QCD
• Exclusive radiative and electroweak b->d and b->s penguin decays at NLO
• Comment on the heavy-->light form factors
• Evidence for CP violation in time-integrated D0 -> h-h+ decay rates
• Rare Charm Decays in the Standard Model and Beyond
• Comment on form factor shape and extraction of |V_ub| from B --> pi l nu
• Size of direct CP violation in singly Cabibbo-suppressed D decays
• Direct CP violation in two-body hadronic charmed meson decays
• CP Violation and Flavor SU(3) Breaking in D-meson Decays
• Implications of the LHCb Evidence for Charm CP Violation
• A consistent picture for large penguins in D -> pi+ pi-, K+ K-
• CP asymmetries in singly-Cabibbo-suppressed $D$ decays to two pseudoscalar mesons
• Heavy --> Light semileptonic decays of pseudoscalar mesons from lattice QCD
• SU(3) symmetry breaking and CP violation in D -> PP decays
• Measurement of D0 -> pilnu (Klnu) Form Factors and Absolute Branching Fractions
• Radiative Weak Decays of Charm Mesons
• Measurement of the difference of CP-violating asymmetries in D0 -> K+K- and D0 ->pi+pi- decays at CDF
• Repercussions of Flavour Symmetry Breaking on CP Violation in D-Meson Decays
• Measurement of the Hadronic Form Factor in D0 --> K- e+ nue Decays
• Measurement of the q2 dependence of the Hadronic Form Factor in D0 --> K- e+ nu_e decays
• On $D\to X_u{l}^{+}{l}^{-}$ within the Standard Model and Frameworks like the Littlest Higgs Model with T Parity
• Effects of Littlest Higgs model in rare D meson decays
• Updated constraints on new physics in rare charm decays
• Shedding light on CP violation in the charm system via D to V gamma decays
• On the Universality of CP Violation in Delta F = 1 Processes
• Search for rare and forbidden decays of charm and charmed-strange mesons to final states h^+- e^-+ e^+

Cited by in corpus (25)

• QCD and strongly coupled gauge theories: challenges and perspectives
• Prospects of discovering new physics in rare charm decays
• Flavor & new physics opportunities with rare charm decays into leptons
• An empirical model of the long-distance contributions to ${\bar{B}}^0\to {\bar{K}}^{\ast 0}{\mu }^{+}{\mu }^{-}$ transitions
• The New Physics Reach of Null Tests with $D\to \pi \ell \ell$ and $D_s\to K\ell \ell$ Decays
• Null tests from angular distributions in $D\to P_1{P}_2{l}^{+}{l}^{-}$, $l=e,\mu$ decays on and off peak
• Exploiting CP-asymmetries in rare charm decays
• Mixing and $CP$ violation in the charm system
• Theoretical and experimental status of rare charm decays
• Manifestations of Warped Extra Dimension in Rare Charm Decays and Asymmetries
• Measurement of angular and CP asymmetries in $D^0\to {\pi }^{+}{\pi }^{-}{\mu }^{+}{\mu }^{-}$ and $D^0\to K^{+}{K}^{-}{\mu }^{+}{\mu }^{-}$ decays
• New Physics effects in charm meson decays involving $c\to u{l}^{+}{l}^{-}(l_i^{\mp }{l}_j^{\pm })$ transitions
• Angular analysis of $D^0\to {\pi }^{+}{\pi }^{-}{\mu }^{+}{\mu }^{-}$ and $D^0\to K^{+}{K}^{-}{\mu }^{+}{\mu }^{-}$ decays and search for $CP$ violation
• Decays $D_{(s)}^{+}\to \pi (K{)}^{+}{\ell }^{+}{\ell }^{-}$ and $D^0\to {\ell }^{+}{\ell }^{-}$ in the MSSM with and without R-parity
• Theoretical perspective on rare and radiative charm decays
• Search for $D^0$ meson decays to ${\pi }^{+}{\pi }^{-}{e}^{+}{e}^{-}$ and $K^{+}{K}^{-}{e}^{+}{e}^{-}$ final states
• Scalar dark matter, Neutrino mass and Leptogenesis in a $\mathrm{U}(1{)}_{\mathrm{B}-\mathrm{L}}$ model
• Search for resonance-enhanced $CP$ and angular asymmetries in the ${\Lambda }_c^{+}\to p{\mu }^{+}{\mu }^{-}$ decay at LHCb
• New opportunities for rare charm from $Z\to c\bar{c}$ decays
• Theory of rare charm decays
• Study of CP Violation in $D^{\pm }\to K^{\ast }(892{)}^0{\pi }^{\pm }+{\bar{K}}^{\ast }(892{)}^0{\pi }^{\pm }\to K_{S,L}^0{\pi }^0{\pi }^{\pm }$ Decays
• Null test searches for BSM physics with rare charm decays
• Measurements of charm rare decays at LHCb
• Direct CP violation in non-leptonic charm decays: Implications for new physics
• Opportunities with (semi)leptonic rare charm decays