PoS - Proceedings of Science
Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Higgs Physics
Higgs recoil analysis and Higgs width measurement at CEPC
Z. Chen,* M. Ruan On behalf of the CEPC Study Group
*corresponding author
Full text: pdf
Pre-published on: February 06, 2017
Published on: April 19, 2017
The Circular Electron Positron Collider (CEPC) is a future Higgs factory proposed by the Chinese high energy physics community. It will operate at a center-of-mass energy of 240-250 GeV and produce Higgs bosons via the ZH process dominantly. Based on the recoil mass method, the expected accuracies of ZH cross section sigma_{ZH}, the Higgs mass m_{H} and the Higgs width Gamma_{H} are studied at the CEPC with a MC sample corresponding to 5 ab^{-1} integrated luminosity. Without using any information from the Higgs decay, the absolute value of sigma_{ZH} could be measured to a relative precision of 0.50%. In a model-dependent analysis, the m_{H} precision is determined to be 5.0 MeV. The Gamma_{H} is determined by a series of individual analyses and its uncertainty is determined to be 2.8% at the CEPC.
DOI: https://doi.org/10.22323/1.282.0432
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