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Search for \(K^+\rightarrow \pi ^+\nu \overline{\nu }\): First NA62 Results

  • Jurgen EngelfriedEmail author
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 234)

Abstract

NA62 has searched for the \(K^+\rightarrow \pi ^+\nu \overline{\nu }\) decay using a new kaon decay in-flight technique. One candidate event, compatible with the Standard Model prediction, has been observed from a sample of \(1.2\times 10^{11}\) decays. Assuming that the event is background, an upper limit of \(1.4\times 10^{-9}\) (95% CL) has been placed. Prospects for further improvements of the measurement are given.

References

  1. 1.
    N. Cabibbo, Phys. Rev. Lett. 10, 531 (1963).  https://doi.org/10.1103/PhysRevLett.10.531ADSCrossRefGoogle Scholar
  2. 2.
    M. Kobayashi, T. Maskawa, Prog. Theor. Phys. 49, 652 (1973).  https://doi.org/10.1143/PTP.49.652ADSCrossRefGoogle Scholar
  3. 3.
    S.L. Glashow, J. Iliopoulos, L. Maiani, Phys. Rev. D 2, 1285 (1970).  https://doi.org/10.1103/PhysRevD.2.1285ADSCrossRefGoogle Scholar
  4. 4.
    G. Buchalla, A.J. Buras, Nucl. Phys. B 400, 225 (1993).  https://doi.org/10.1016/0550-3213(93)90405-EADSCrossRefGoogle Scholar
  5. 5.
    G. Buchalla, A.J. Buras, Nucl. Phys. B 412, 106 (1994).  https://doi.org/10.1016/0550-3213(94)90496-0 [hep-ph/9308272]ADSCrossRefGoogle Scholar
  6. 6.
    M. Misiak, J. Urban, Phys. Lett. B 451, 161 (1999).  https://doi.org/10.1016/S0370-2693(99)00150-1 [hep-ph/9901278]ADSCrossRefGoogle Scholar
  7. 7.
    A.J. Buras, D. Buttazzo, J. Girrbach-Noe, R. Knegjens, JHEP 1511, 033 (2015).  https://doi.org/10.1007/JHEP11(2015)033. [arXiv:1503.02693] [hep-ph]
  8. 8.
    M. Tanabashi et al., Particle data group. Phys. Rev. D 98, 030001 (2018)ADSCrossRefGoogle Scholar
  9. 9.
    A.V. Artamonov et al. (BNL-E949 Collaboration), Phys. Rev. D 79, 092004 (2009).  https://doi.org/10.1103/PhysRevD.79.092004. [arXiv:0903.0030] [hep-ex]
  10. 10.
    E. Cortina Gil et al. (NA62 Collaboration), JINST 12(05), P05025 (2017).  https://doi.org/10.1088/1748-0221/12/05/P05025. [arXiv:1703.08501] [physics.ins-det]CrossRefGoogle Scholar
  11. 11.
    M. Blanke, A.J. Buras, B. Duling, K. Gemmler, S. Gori, JHEP 0903, 108 (2009).  https://doi.org/10.1088/1126-6708/2009/03/108. [arXiv:0812.3803] [hep-ph]CrossRefGoogle Scholar
  12. 12.
    T. Blaźek, P. Maták, Int. J. Mod. Phys. A 29(27), 1450162 (2014).  https://doi.org/10.1142/S0217751X14501620 [arXiv:1410.0055] [hep-ph]ADSCrossRefGoogle Scholar
  13. 13.
    G. Isidori, F. Mescia, P. Paradisi, C. Smith, S. Trine, JHEP P0608, 064 (2006).  https://doi.org/10.1088/1126-6708/2006/08/064 [hep-ph/0604074]CrossRefGoogle Scholar
  14. 14.
    A.J. Buras, D. Buttazzo, R. Knegjens, JHEP 1511, 166 (2015).  https://doi.org/10.1007/JHEP11(2015)166.[arXiv:1507.08672] [hep-ph]
  15. 15.
    M. Blanke, A.J. Buras, S. Recksiegel, Eur. Phys. J. C 76(4), 182 (2016).  https://doi.org/10.1140/epjc/s10052-016-4019-7. [arXiv:1507.06316] [hep-ph]
  16. 16.
    M. Bordone, D. Buttazzo, G. Isidori, J. Monnard, Eur. Phys. J. C 77(9), 618 (2017).  https://doi.org/10.1140/epjc/s10052-017-5202-1. [arXiv:1705.10729] [hep-ph]
  17. 17.
    N. Estrada-Tristán (NA62 Collaboration), These proceedingsGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Instituto de FísicaUniversidad Autónoma de San Luis PotosíSan Luis PotosiMexico

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