Open AccessBeam-Gas and Beam-Thermal photon scattering in CEPC
Author(s) -
Sha Bai,
Yu Chen,
Y W Wang,
Yuan Zhang,
D Wang,
Huiping Geng,
Jie Gao
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1350/1/012008
Subject(s) - physics , beam (structure) , scattering , photon , beam dump , nuclear physics , bremsstrahlung , optics , thermal , meteorology
The Circular Electron Positron Collider (CEPC) is a proposed Higgs factory with center of mass energy of 240GeV to measure the properties of Higgs boson and test the standard model accurately. Beam loss background in detectors is an important topic at CEPC. Beam-Gas scattering (BG) and Beam-Thermal photon scattering (BTH), although not so serious as Radiative Bhabha scattering (RBB) and Beamstrahlung (BS), are also important components of the beam induced backgrounds at CEPC due to the beam lifetime. In this paper, we evaluated the beam-gas and beam-thermal photon scattering in simulation and designed collimators to suppress the radiation level on the machine and the detector.