Analysis of λbλ l+l- rare decays in a non-universal Z' model

  • We investigate the rare baryonic λbλl+l- decays in a non-universal Z' model, which is one of the well-motivated extensions of the standard model (SM). Considering the effects of Z'-mediated flavour-changing neutral currents (FCNCs) we analyse the differential decay rate, forward-backward asymmetries and lepton polarisation asymmetries for the λbλl+l- decays. We find significant deviations from their SM predictions, which could indicate new physics arising from the Z' gauge boson.
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D. Banerjee and S. Sahoo. Analysis of λbλ l+l- rare decays in a non-universal Z' model[J]. Chinese Physics C, 2017, 41(8): 083101. doi: 10.1088/1674-1137/41/8/083101
D. Banerjee and S. Sahoo. Analysis of λbλ l+l- rare decays in a non-universal Z' model[J]. Chinese Physics C, 2017, 41(8): 083101.  doi: 10.1088/1674-1137/41/8/083101 shu
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Received: 2017-01-24
Revised: 2017-03-21
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Analysis of λbλ l+l- rare decays in a non-universal Z' model

  • 1. Department of Physics, National Institute of Technology, Durgapur-713209, West Bengal, India

Abstract: We investigate the rare baryonic λbλl+l- decays in a non-universal Z' model, which is one of the well-motivated extensions of the standard model (SM). Considering the effects of Z'-mediated flavour-changing neutral currents (FCNCs) we analyse the differential decay rate, forward-backward asymmetries and lepton polarisation asymmetries for the λbλl+l- decays. We find significant deviations from their SM predictions, which could indicate new physics arising from the Z' gauge boson.

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