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The Belle II Experiment: Status and Prospects

by K. Lalwani (on behalf of the Belle II Collaboration)

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Submission summary

Authors (as registered SciPost users): Kavita Lalwani
Submission information
Preprint Link: scipost_202108_00045v2  (pdf)
Date accepted: 2022-06-21
Date submitted: 2022-06-15 16:53
Submitted by: Lalwani, Kavita
Submitted to: SciPost Physics Proceedings
Proceedings issue: 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021)
Ontological classification
Academic field: Physics
Specialties:
  • High-Energy Physics - Experiment
Approach: Experimental

Abstract

The Belle II experiment at the SuperKEKB energy asymmetric e+e−collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminosity of the machine is 6×10^35 cm^{−2} s^{−1} and the Belle II experiment aims to record 50ab^{−1]of data, a factor of 50 more than its predecessor. With this data set, Belle II will be able to measure the Cabibbo-Kobayashi-Maskawa (CKM) matrix, the matrix elements and their phases, with unprecedented precision and explore flavor physics with B, charmed mesons, and tau leptons. Belle II has also a unique capability to search for low-mass dark matter and low-mass mediators. In this paper, we will review the status of the Belle II detector, SuperKEKB accelerator and the prospects for physics at Belle II.

Author comments upon resubmission

The following changes are updated in the conference proceeding (revised version) enclosed:

point 1: question asked by referee: Provide a brief estimate as to when the Belle II experiment will complete data taking.

Ans (point 1): Belle II has been running continuously and collecting data despite the Covid-19 pandemic.
Long Shut Down 1 is expected to start this year in July and it will continue till 15 months. By this time we are expected to collect about 500fb^{-1} of data. Further, its aim is to record data at an integrated luminosity of 50 ab^{−1}
.

List of changes

The following changes are updated in the summary section of conference proceeding (revised version) enclosed:

point 1: question asked by referee: Provide a brief estimate as to when the Belle II experiment will complete data taking.

Ans (point 1): Belle II has been running continuously and collecting data despite the Covid-19 pandemic.
Long Shut Down 1 is expected to start this year in July and it will continue till 15 months. By this time we are expected to collect about 500fb^{-1} of data. Further, its aim is to record data at an integrated luminosity of 50 ab^{−1}
.

Published as SciPost Phys. Proc. 8, 176 (2023)

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