This page presents summary PDF files comparing the performance of VPDstart and Startless modes for the Run22 pp 500 GeV dataset. The calibrations focus on both the BTOF and VPD systems.

Two key observations from the analysis are highlighted:

• Improved T0 Resolution: The Startless mode shows a higher T0 resolution compared to the VPDstart mode.

• Proton Mass Splitting: A clear observation of proton mass splitting has been made.

Please refer to the attached summary files for further details.