Search for Light New Physics at 𝐵 Factories

Table 2

Results of light Higgs boson searches performed by the BABAR Collaboration.

Mode	Mass range (GeV)	BF upper limit (90% CL)
Υ(2𝑆,3𝑆)→𝛾𝐴^0,𝐴^0→𝜇^+𝜇^−	0.21<𝑚𝐴<9.3	(0.3−8.3)×10^−6
Υ(3𝑆)→𝛾𝐴^0,𝐴^0→𝜏^+𝜏^−	4.0<𝑚𝐴<10.1	(1.5−16)×10^−5
Υ(2𝑆,3𝑆)→𝛾𝐴^0,𝐴^0→hadrons	0.3<𝑚𝐴<7.0	(0.1−8)×10^−5
Υ(1𝑆)→𝛾𝐴^0,𝐴^0→𝜒𝜒	𝑚𝜒<4.5 GeV	(0.5−24)×10^−5
Υ(1𝑆)→𝛾𝐴^0,𝐴^0→invisible	𝑚𝐴<9.2 GeV	(1.9−37)×10^−6
Υ(3𝑆)→𝛾𝐴^0,𝐴^0→invisible	𝑚𝐴<9.2 GeV	(0.7−31)×10^−6