Model-independent analysis of CP violation in charmed meson decays

Rohit Dhir; C. S. Kim; Sechul Oh

doi:10.1142/S0217751X15501043

Model-independent analysis of CP violation in charmed meson decays

Rohit Dhir, C. S. Kim, Sechul Oh

Graduate School of Natural Science and Technology

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We present a model-independent analysis of CP violation, inspired by recent experimental observations, in charmed meson decays. The topological diagram approach is used to study direct CP asymmetries for singly Cabibbo-suppressed two-body hadronic decays of charmed mesons. We extract the magnitudes and relative phases of the corresponding topological amplitudes from available experimental information. In order to get more precise and reliable estimates of direct CP asymmetries, we take into account contributions from all possible strong penguin amplitudes, including the internal b-quark penguin contributions. We also study flavor SU(3) symmetry breaking effects in these decay modes and consequently predict direct CP asymmetries of unmeasured modes.

Original language	English
Article number	1550104
Journal	International Journal of Modern Physics A
Volume	30
Issue number	17
DOIs	https://doi.org/10.1142/S0217751X15501043
Publication status	Published - Jun 20 2015

Keywords

CP violation
D meson
SU(3) symmetry
asymmetry
charm
topological diagram

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Astronomy and Astrophysics

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10.1142/S0217751X15501043

Cite this

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title = "Model-independent analysis of CP violation in charmed meson decays",

abstract = "We present a model-independent analysis of CP violation, inspired by recent experimental observations, in charmed meson decays. The topological diagram approach is used to study direct CP asymmetries for singly Cabibbo-suppressed two-body hadronic decays of charmed mesons. We extract the magnitudes and relative phases of the corresponding topological amplitudes from available experimental information. In order to get more precise and reliable estimates of direct CP asymmetries, we take into account contributions from all possible strong penguin amplitudes, including the internal b-quark penguin contributions. We also study flavor SU(3) symmetry breaking effects in these decay modes and consequently predict direct CP asymmetries of unmeasured modes.",

keywords = "CP violation, D meson, SU(3) symmetry, asymmetry, charm, topological diagram",

author = "Rohit Dhir and Kim, {C. S.} and Sechul Oh",

note = "Funding Information: We thank Yeo Woong Yoon for useful comments. The work is supported by the National Research Foundation of Korea (NRF) grant funded by Korea government of the Ministry of Education, Science and Technology (MEST) (Grant Nos. 2011-0017430 and 2011-0020333).",

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T1 - Model-independent analysis of CP violation in charmed meson decays

AU - Dhir, Rohit

AU - Kim, C. S.

AU - Oh, Sechul

N1 - Funding Information: We thank Yeo Woong Yoon for useful comments. The work is supported by the National Research Foundation of Korea (NRF) grant funded by Korea government of the Ministry of Education, Science and Technology (MEST) (Grant Nos. 2011-0017430 and 2011-0020333).

PY - 2015/6/20

Y1 - 2015/6/20

N2 - We present a model-independent analysis of CP violation, inspired by recent experimental observations, in charmed meson decays. The topological diagram approach is used to study direct CP asymmetries for singly Cabibbo-suppressed two-body hadronic decays of charmed mesons. We extract the magnitudes and relative phases of the corresponding topological amplitudes from available experimental information. In order to get more precise and reliable estimates of direct CP asymmetries, we take into account contributions from all possible strong penguin amplitudes, including the internal b-quark penguin contributions. We also study flavor SU(3) symmetry breaking effects in these decay modes and consequently predict direct CP asymmetries of unmeasured modes.

AB - We present a model-independent analysis of CP violation, inspired by recent experimental observations, in charmed meson decays. The topological diagram approach is used to study direct CP asymmetries for singly Cabibbo-suppressed two-body hadronic decays of charmed mesons. We extract the magnitudes and relative phases of the corresponding topological amplitudes from available experimental information. In order to get more precise and reliable estimates of direct CP asymmetries, we take into account contributions from all possible strong penguin amplitudes, including the internal b-quark penguin contributions. We also study flavor SU(3) symmetry breaking effects in these decay modes and consequently predict direct CP asymmetries of unmeasured modes.

KW - CP violation

KW - D meson

KW - SU(3) symmetry

KW - asymmetry

KW - charm

KW - topological diagram

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JF - International Journal of Modern Physics A

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Model-independent analysis of CP violation in charmed meson decays

Abstract

Keywords

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