Updated on April 24

Weekly Schedule

• 2024a

• 2024b

Operation History

• 2024ab

• Plan of 2024ab

Past Operation History

• 2022ab

• Off-Momentum Run in 2022b

• PY2021

• 2019-2022

Specific Luminosity

Beam-Beam Parameters

Maintenance

Dates	Remarks
February 21	regular
March 13
March 27	regular
April 17	regular
May 1
May 15	regular
May 29
June 12	regular
June 26

Records

• Peak luminosity 4.65 x10³⁴ (cm^-2s^-1), June 8, swing, 2022
• Belle II HV ON

Parameter	LER	HER	Unit
Beam Current	1321	1099	mA
Number of Bunches	2249
Bunch Current	0.587	0.489	mA
Beam-Beam Parameter ξy	0.0407	0.0279
Σy*	0.303		μm
σy*	0.215		μm
Tunes (x/y)	44.525 / 46.589	45.532 / 43.573
Specific Luminosity (x1031)	7.21		cm-2s-1/mA2
Luminosity (x1034)	4.65		cm-2s-1

• Peak luminosity 4.71 x10³⁴ (cm^-2s^-1), June 22, day, 2022
• Belle II HV OFF

Parameter	LER	HER	Unit
Beam Current	1363	1118	mA
Number of Bunches	2249
Bunch Current	0.606	0.497	mA
Beam-Beam Parameter ξy	0.0398	0.0278
Σy*	0.315		μm
σy*	0.223		μm
Tunes (x/y)	44.524 / 46.594	45.532 / 43.574
Specific Luminosity (x1031)	6.95		cm-2s-1/mA2
Luminosity (x1034)	4.71		cm-2s-1

Integrated Luminosity	Recorded	Date	Delivered	Date
Shift (pb-1)	958.1	April 24, Swing, 2022	1035.9	April 22, Swing, 2022
1 days (fb-1)	2.503	April 22, 2022	2.912	June 11, 2022
7 days (fb-1)	15.001	April 18 - April 24, 2022	16.599	April 18 - April 24, 2022

• Optics File