Ablikim, M.Achasov, M. N.Adlarson, P.Ahmed, S.Albrecht, M.Kolcu, Onur BuğraOnur Buğra Kolcu / 0000-0002-9177-12862022-02-112022-02-112022Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., ... & Kuemmel, M. (2022). Search for a C P-odd light Higgs boson in J/ψ→ γ A 0. Physical Review D, 105(1), 012008.2470-00102470-0029https://doi.org/10.1103/PhysRevD.105.012008https://hdl.handle.net/20.500.12713/2484Using J/psi radiative decays from 9.0 billion J/psi events collected by the BESIII detector, we search for di-muon decays of a CP-odd light Higgs boson (A(0)), predicted by many new physics models beyond the Standard Model, including the next-to-minimal supersymmetric Standard Model. No evidence for the CP-odd light Higgs production is found, and we set 90% confidence level upper limits on the product branching fraction B(J/psi -> gamma A(0)) x B(A(0) -> mu(+)mu(-)) in the range of (1.2 - 778.0) x 10(-9) for 0.212 <= m(A0) <= 3.0 GeV/c(2). The new measurement is a 6-7 times improvement over our previous measurement, and is also slightly better than the BABAR measurement in the low-mass region for tan beta = 1.eninfo:eu-repo/semantics/openAccessRadiativeCorrectionsBroken SymmetriesDescaysMassArticle1051WOS:0007487452000032-s2.0-85124189152Q110.1103/PhysRevD.105.012008Q1