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  • Letter
  • Open Access

B→Kνν¯, MiniBooNE and muon g−2 anomalies from a dark sector

Alakabha Datta1,2,3,*, Danny Marfatia4,†, and Lopamudra Mukherjee5,‡

  • 1Department of Physics and Astronomy, University of Mississippi, 108 Lewis Hall, Oxford, Mississippi 38677, USA
  • 2SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
  • 3Santa Cruz Institute for Particle Physics, Santa Cruz, California 95064, USA
  • 4Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
  • 5School of Physics, Nankai University, Tianjin 300071, China

  • *datta@phy.olemiss.edu
  • †dmarf8@hawaii.edu
  • ‡lopamudra.physics@gmail.com
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Phys. Rev. D 109, L031701 – Published 15 February, 2024

DOI: https://doi.org/10.1103/PhysRevD.109.L031701

Abstract

Belle II has reported the first evidence for B+→K+νν¯ with a branching ratio 2.7σ higher than the standard model expectation. We explain this and the MiniBooNE and muon anomalous magnetic moment anomalies in a model with a dark scalar that couples to a slightly heavier sterile Dirac neutrino and that communicates with the visible sector via a Higgs portal. We make predictions for rare kaon and other B meson decays.

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Phys. Rev. D 109, L031701– Published 15 February, 2024
  • Received 26 October 2023
  • Accepted 13 January 2024
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