# Instrumentation for Colliding Beam Physics (INSTR-17)

from 27 February 2017 to 3 March 2017
Budker Institute of Nuclear Physics
Asia/Novosibirsk timezone
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# Contribution Contributed Oral

Colliders and detector integration

# Beam background detection at SuperKEKB/Belle II

## Speakers

• Dr. Peter LEWIS
• Prof. Peter KRIZAN

## Content

The SuperKEKB energy-asymmetric e+e- collider has completed its first phase of commissioning and is working towards its design luminosity of 8x$10^{35}$cm$^{-2}$s$^{-1}$. The collisions will be recorded and analyzed with the Belle II spectrometer whose construction is on-going at the roll-out position. Last spring, SuperKEKB circulated beams in both rings during the first phase of commissioning. In this time, beam conditions were monitored around the interaction point with an array of sensors collectively called BEAST II. I will report on the results of BEAST II during this commissioning phase as well as plans to upgrade this detector for the second phase of SuperKEKB commissioniong.