https://doi.org/10.1140/epjp/s13360-020-00272-4
Regular Article
Reconstructing 
and 
in the CEPC baseline detector
1
School of Physics, Nanjing University, Nanjing, China
2
The Institute for Advanced Studies, Wuhan University, Wuhan, China
3
Changzhou Institute of Technology, Changzhou, Jiangsu, China
4
Institute of High Energy Physics, Beijing, China
* e-mail: manqi.ruan@ihep.ac.cn
Received:
31
August
2019
Accepted:
8
February
2020
Published online:
27
February
2020
The proposed Circular Electron Positron Collider (CEPC) is expected to produce up to 1 trillion Z bosons in 2 years and has a great potential on the flavor physics. The and are important physics signatures for many flavor physics measurements and are abundantly produced in the CEPC Z pole program. Using a full simulation tool, we study the CEPC baseline detector performance of the 
reconstruction with fully charged final states. For the , the baseline detector reaches an inclusive efficiency/purity of 
and 
, and a mass resolution of 1.20/0.40 (0.24/0.036%) MeV, respectively. We also quantify the potential improvements, by improving the low transverse momentum track reconstruction and implementing particle identification capabilities in ideal conditions. In addition, we discuss the potential application on the detector material and alignment studies.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020
