Direct CP asymmetry in D → π-π+ and D → K-K+ in QCD-based approach

doi:10.1016/j.physletb.2017.09.070

Title: Direct CP asymmetry in D → π ^- π ⁺ and D → K ^- K ⁺ in QCD-based approach

Abstract

We present the first QCD-based calculation of hadronic matrix elements with penguin topology determining direct CP-violating asymmetries in D ⁰ → π ^- π ⁺ and D ⁰ → K ^- K ⁺ nonleptonic decays. The method is based on the QCD light-cone sum rules and does not rely on any model-inspired amplitude decomposition, instead leaning heavily on quark–hadron duality. We provide a Standard Model estimate of the direct CP-violating asymmetries in both pion and kaon modes and their difference and comment on further improvements of the presented computation.

Authors:

Khodjamirian, Alexander ^[1];

^[2]

Univ. Siegen (Germany). Naturwissenschaftlich-Technische Fakultat, Theoretische Physik
Univ. Siegen (Germany). Naturwissenschaftlich-Technische Fakultat, Theoretische Physik; Wayne State Univ., Detroit, MI (United States). Dept. of Physics and Astronomy; Univ. of Michigan, Ann Arbor, MI (United States). Michigan Center for Theoretical Physics

Publication Date:: 2017-09-28

Research Org.:: Wayne State Univ., Detroit, MI (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1437744

Alternate Identifier(s):: OSTI ID: 1545064

Grant/Contract Number:: SC0007983

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Volume: 774; Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Khodjamirian, Alexander, and Petrov, Alexey A. Direct CP asymmetry in D → π-π+ and D → K-K+ in QCD-based approach.  United States: N. p., 2017. 
        Web.  doi:10.1016/j.physletb.2017.09.070.

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                    Khodjamirian, Alexander, & Petrov, Alexey A. Direct CP asymmetry in D → π-π+ and D → K-K+ in QCD-based approach.  United States.  doi:10.1016/j.physletb.2017.09.070.

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                    Khodjamirian, Alexander, and Petrov, Alexey A. Thu .  
        "Direct CP asymmetry in D → π-π+ and D → K-K+ in QCD-based approach".  United States.  doi:10.1016/j.physletb.2017.09.070.

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@article{osti_1437744,

  title        = {Direct CP asymmetry in D → π-π+ and D → K-K+ in QCD-based approach},

  author       = {Khodjamirian, Alexander and Petrov, Alexey A.},

  abstractNote = {We present the first QCD-based calculation of hadronic matrix elements with penguin topology determining direct CP-violating asymmetries in D0 → π-π+ and D0 → K-K+ nonleptonic decays. The method is based on the QCD light-cone sum rules and does not rely on any model-inspired amplitude decomposition, instead leaning heavily on quark–hadron duality. We provide a Standard Model estimate of the direct CP-violating asymmetries in both pion and kaon modes and their difference and comment on further improvements of the presented computation.},

  doi          = {10.1016/j.physletb.2017.09.070},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 774,

  place        = {United States},

  year         = {2017},

  month        = {9}

}

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DOI: 10.1016/j.physletb.2017.09.070

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Works referencing / citing this record:

Search for CP violation through an amplitude analysis of D0 → K+K−π+π− decays
journal, February 2019

Aaij, R.; Abellán Beteta, C.; Adeva, B.
Journal of High Energy Physics, Vol. 2019, Issue 2
DOI: 10.1007/jhep02(2019)126

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