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Implications of the LHCb discovery of CP violation in charm decays

  • Regular Article - Theoretical Physics
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  • Published: 13 December 2019
  • Volume 2019, article number 104, (2019)
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Implications of the LHCb discovery of CP violation in charm decays
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  • Avital Dery1 &
  • Yosef Nir2 
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A preprint version of the article is available at arXiv.

Abstract

The recent measurement of ∆ACP by the LHCb collaboration requires an 𝒪 (10) enhancement coming from hadronic physics in order to be explained within the SM. We examine to what extent can NP models explain ∆ACP without such enhancements. We discuss the implications in terms of a low energy effective theory as well as in the context of several explicit NP models.

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References

  1. LHCb collaboration, Observation of CP-violation in charm decays, Phys. Rev. Lett.122 (2019) 211803 [arXiv:1903.08726] [INSPIRE].

  2. Y. Grossman, A.L. Kagan and Y. Nir, New physics and CP-violation in singly Cabibbo suppressed D decays, Phys. Rev.D 75 (2007) 036008 [hep-ph/0609178] [INSPIRE].

  3. HFLAV collaboration, Averages of b-hadron, c-hadron and τ -lepton properties as of 2018, arXiv:1909.12524 [INSPIRE].

  4. J. Brod, A.L. Kagan and J. Zupan, Size of direct CP-violation in singly Cabibbo-suppressed D decays, Phys. Rev.D 86 (2012) 014023 [arXiv:1111.5000] [INSPIRE].

  5. J. Brod, Y. Grossman, A.L. Kagan and J. Zupan, A consistent picture for large penguins in D → π +π −, K +K − , JHEP10 (2012) 161 [arXiv:1203.6659] [INSPIRE].

  6. Y. Grossman and S. Schacht, The emergence of the ∆U = 0 rule in charm physics, JHEP07 (2019) 020 [arXiv:1903.10952] [INSPIRE].

  7. H.-Y. Cheng and C.-W. Chiang, Revisiting CP-violation in D → P P and V P decays, Phys. Rev.D 100 (2019) 093002 [arXiv:1909.03063] [INSPIRE].

  8. G. Isidori, J.F. Kamenik, Z. Ligeti and G. Perez, Implications of the LHCb evidence for charm CP-violation, Phys. Lett.B 711 (2012) 46 [arXiv:1111.4987] [INSPIRE].

  9. M. Chala, A. Lenz, A.V. Rusov and J. Scholtz, ∆A CPwithin the Standard Model and beyond, JHEP07 (2019) 161 [arXiv:1903.10490] [INSPIRE].

  10. A. Khodjamirian and A.A. Petrov, Direct CP asymmetry in D → π −π +and D → K −K +in QCD-based approach, Phys. Lett.B 774 (2017) 235 [arXiv:1706.07780] [INSPIRE].

  11. LHCb collaboration, Evidence for CP-violation in time-integrated D 0→ h −h +decay rates, Phys. Rev. Lett.108 (2012) 111602 [arXiv:1112.0938] [INSPIRE].

  12. Y. Hochberg and Y. Nir, Relating direct CP-violation in D decays and the forward-backward asymmetry in t \( \overline{t} \)production, Phys. Rev. Lett.108 (2012) 261601 [arXiv:1112.5268] [INSPIRE].

    Article  ADS  Google Scholar 

  13. G.F. Giudice, G. Isidori and P. Paradisi, Direct CP-violation in charm and flavor mixing beyond the SM, JHEP04 (2012) 060 [arXiv:1201.6204] [INSPIRE].

    Article  ADS  Google Scholar 

  14. G. Hiller, Y. Hochberg and Y. Nir, Supersymmetric ∆A CP , Phys. Rev.D 85 (2012) 116008 [arXiv:1204.1046] [INSPIRE].

  15. UTfit collaboration, Model-independent constraints on ∆F = 2 operators and the scale of new physics, JHEP03 (2008) 049 [arXiv:0707.0636] [INSPIRE].

  16. A.L. Kagan and M. Neubert, Large ∆I = 3/2 contribution to 𝜖′/𝜖 in supersymmetry, Phys. Rev. Lett.83 (1999) 4929 [hep-ph/9908404] [INSPIRE].

  17. ATLAS collaboration, Search for new phenomena in the dijet mass distribution using p – p collision data at \( \sqrt{s} \) = 8 TeV with the ATLAS detector, Phys. Rev.D 91 (2015) 052007 [arXiv:1407.1376] [INSPIRE].

  18. ATLAS collaboration, Search for low-mass dijet resonances using trigger-level jets with the ATLAS detector in pp collisions at \( \sqrt{s} \) = 13 TeV, Phys. Rev. Lett.121 (2018) 081801 [arXiv:1804.03496] [INSPIRE].

  19. CMS collaboration, Search for narrow and broad dijet resonances in proton-proton collisions at \( \sqrt{s} \) = 13 TeV and constraints on dark matter mediators and other new particles, JHEP08 (2018) 130 [arXiv:1806.00843] [INSPIRE].

  20. Y. Nir and G. Raz, Quark squark alignment revisited, Phys. Rev.D 66 (2002) 035007 [hep-ph/0206064] [INSPIRE].

  21. L. Calibbi, P. Paradisi and R. Ziegler, Gauge mediation beyond minimal flavor violation, JHEP06 (2013) 052 [arXiv:1304.1453] [INSPIRE].

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Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited

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Authors and Affiliations

  1. Department of Physics, LEPP, Cornell University, Ithaca, NY, 14853, USA

    Avital Dery

  2. Department of Particle Physics and Astrophysics, Weizmann Institute of Science, 76100, Rehovot, Israel

    Yosef Nir

Authors
  1. Avital Dery
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  2. Yosef Nir
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Corresponding author

Correspondence to Avital Dery.

Additional information

ArXiv ePrint: 1909.11242

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Cite this article

Dery, A., Nir, Y. Implications of the LHCb discovery of CP violation in charm decays. J. High Energ. Phys. 2019, 104 (2019). https://doi.org/10.1007/JHEP12(2019)104

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  • Received: 05 November 2019

  • Accepted: 01 December 2019

  • Published: 13 December 2019

  • DOI: https://doi.org/10.1007/JHEP12(2019)104

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Keywords

  • Beyond Standard Model
  • CP violation
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