Probing new physics scenarios of muon g − 2 via J/ψ decay at BESIII

Gorazd Cvetič; C. S. Kim; Donghun Lee; Dibyakrupa Sahoo

doi:10.1007/JHEP10(2020)207

Probing new physics scenarios of muon g − 2 via J/ψ decay at BESIII

Gorazd Cvetič, C. S. Kim, Donghun Lee, Dibyakrupa Sahoo

Department of Physics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The disagreement between the standard model prediction and the experimental measurement of muon anomalous magnetic moment can be alleviated by invoking an additional particle which is either a vector boson (X₁) or a scalar (X₀). This new particle, with the mass m_X ≲ 2m_μ, can be searched for in the decay J/ψ → μ⁻μ⁺X, where X is missing. Our numerical study shows that the search is quite feasible at the BESIII experiment in the parameter space allowed by muon g − 2 measurements.

Original language	English
Article number	207
Journal	Journal of High Energy Physics
Volume	2020
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2020)207
Publication status	Published - 2020 Oct 1

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© 2020, The Author(s).

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Nuclear and High Energy Physics

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abstract = "The disagreement between the standard model prediction and the experimental measurement of muon anomalous magnetic moment can be alleviated by invoking an additional particle which is either a vector boson (X1) or a scalar (X0). This new particle, with the mass mX ≲ 2mμ, can be searched for in the decay J/ψ → μ−μ+X, where X is missing. Our numerical study shows that the search is quite feasible at the BESIII experiment in the parameter space allowed by muon g − 2 measurements.",

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AB - The disagreement between the standard model prediction and the experimental measurement of muon anomalous magnetic moment can be alleviated by invoking an additional particle which is either a vector boson (X1) or a scalar (X0). This new particle, with the mass mX ≲ 2mμ, can be searched for in the decay J/ψ → μ−μ+X, where X is missing. Our numerical study shows that the search is quite feasible at the BESIII experiment in the parameter space allowed by muon g − 2 measurements.

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Probing new physics scenarios of muon g − 2 via J/ψ decay at BESIII

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