status_plan

Updated on May 11

Weekly schedule

2022a
2022b
off-resonance run (April 27 - May 11), target int. luminosity: 30 fb^-1

Plan of beam currents

Operation history

Specific luminosity

2022ab

Beam-Beam parameters

2022ab

ξ_y vs bunch current

Maintenance

Dates
March 2	March 16	March 30
April 13	April 27
May 11	May 25
June 15	June 22

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 ξ_y	0.0407	0.0279
Σ_y^*	0.303		μm
σ_y^*	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 ξ_y	0.0398	0.0278
Σ_y^*	0.315		μm
σ_y^*	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