LER

HER

Horizontal Emittance

18

24

nm

Beam current

1636

1261

mA

Number of bunches

1293

Bunch current

1.27

0.975

mA

Bunch spacing

2.34

m

Bunch trains

1

Total RF volatage   Vc

8.0

15.0

MV

Synchrotron tune  ν_s

-0.0249

-0.0226

Betatron tune  ν_x / ν_y

45.506/43.535

44.510/41.577

beta's at IP  β^✽_x / β^✽_y

59/0.54

56/0.62

cm

Estimated vertical beam size at IP　σ^✽_y

2.1

2.1

mm

beam-beam parameters   ξ_x / ξ_y

0.118/0.081

0.074/0.056

Beam lifetime

160@1630

195@1260

min.@mA

Luminosity (Belle CsI)

15.16

10³³/cm²/sec

Luminosity records^*)
per day / 7days/ 30days

1.083/6.242/24.00

/fb