SuperKEKB Shift Report

2026/2/20 (Fr) Owl shift

KCG shift Shift leader KEKB MSC Linac shift Linac MSC BCG
S.YOSHIMOTO --- T.MORO
MAN.TANAKA
--- Y.ICHIMURA
H.KUMANO
Hideyuki Nakazawa

Shift Summary

recorded delivered
Peak luminosity 4.55 x 10 34 cm-2s-1
Integrated luminosity (shift) 639.5 pb-1 715.9 pb-1

LER HERBoth DR
Energy 4.002 GeV 7.010 GeV 10.583 GeV 1.1 GeV
Beam current 1601.6 mA 1220.3 mA 28.7 mA
No. bunches 2346 2346
Beta at IP 60 mm / 1 mm 60 mm / 1 mm
Crab Waist Ratio 80 % 60 %
Aborts 1 1 3

IP Knob Tuning

04:14 LER HER
r1 (mrad) 3.00 8.60
r2 (mm) -4.40 -1.52
r3 (1/hm) 0.00 0.00
r4 (crad) 0.00 0.00
ηy (mm) -0.24 -0.15
ηpy (mrad) -20.00 -5.00
waist (mm) 1.55 -1.20
chromatic r1 (mrad) 0.00 0.00
chromatic r2 (mm) 0.00 0.00
chromatic r3 (1/m) 0.00 0.00
chromatic r4 (rad) 0.00 0.00
created on 02/20/2026 08:01:08