Chinese Physics C > 2017, Vol. 41 > Issue(8): 083101 DOI: 10.1088/1674-1137/41/8/083101

Analysis ofλ_b→λl⁺l^-rare decays in a non-universal Z' model

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

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Abstract：
We investigate the rare baryonic λ _b→ λl ⁺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 λ _b→ λl ⁺l ^-decays. We find significant deviations from their SM predictions, which could indicate new physics arising from the Z' gauge boson.
- Z'boson,
- baryonic decays,
- flavour-changing neutral currents,
- heavy quark effective theory,
- models beyond the standard model

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D. Banerjee and S. Sahoo. Analysis of λ _b→ λl ⁺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 λ _b→ λl ⁺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
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沈阳化工大学材料科学与工程学院沈阳 110142

Analysis ofλ_b→λl⁺l^-rare decays in a non-universal Z' model

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