SuperKEKB Shift Report

2026/4/20 (Mo) Day shift

KCG shift Shift leader KEKB MSC Linac shift Linac MSC BCG
H.KAJI M.MASUZAWA N.TANAKA
Y.KURODA
T.SAKAI Y.ICHIMURA
Y.MIZUKAWA
Shu-Ping Lin

Shift Summary

recorded delivered
Peak luminosity 4.72 x 10 34 cm-2s-1
Integrated luminosity (shift) 898.5 pb-1 1048.4 pb-1

LER HERBoth DR
Energy 3.979 GeV 6.970 GeV 10.523 GeV 1.1 GeV
Beam current 1401.5 mA 1161.9 mA 28.5 mA
No. bunches 2346 2346
Beta at IP 60 mm / 1 mm 60 mm / 1 mm
Crab Waist Ratio 80 % 60 %
Aborts 3 0 2

IP Knob Tuning

14:49 LER HER
r1 (mrad) -4.80 -2.00
r2 (mm) -4.72 6.33
r3 (1/hm) 14.00 0.00
r4 (crad) 5.00 0.00
ηy (mm) -0.25 0.11
ηpy (mrad) -15.63 6.00
waist (mm) 1.18 -1.20
chromatic r1 (mrad) 0.00 0.00
chromatic r2 (mm) -50.00 0.00
chromatic r3 (1/m) 0.00 0.00
chromatic r4 (rad) 0.00 0.00
created on 04/20/2026 16:01:10