eeFACT2018 - List of Authors (Gao, J.)

Paper	Title	Page
MOYAA05	The Status of CEPC	30
	C.H. Yu, S. Bai, T.J. Bian, X. Cui, J. Gao, H. Geng, D.J. Gong, D. Ji, Y.D. Liu, C. Meng, Q. Qin, D. Wang, N. Wang, Y. Wang, Y. Wei, J.Y. Zhai, Y. Zhang, H.J. Zheng, Y.S. Zhu IHEP, Beijing, People’s Republic of China
	Circular electron-positron collider (CEPC) is a dedi-cated project proposed by China to research the Higgs boson. The collider ring provides e⁺ e⁻ collision at two interaction points (IP). The luminosity for the Higgs mode at the beam energy of 120GeV is 310³⁴ cm^-2s^-1 at each IP while the synchrotron radiation (SR) power per beam is 30MW. Furthermore, CEPC is compatible with W and Z experiments, for which the beam ener-gies are 80 GeV and 45.5 GeV respectively. The lumi-nosity at the Z mode is higher than 1.710³⁵ cm^-2s^-1 per IP. Top-up operation is available during the data taking of high energy physics. The status of CEPC will be introduced in detail in this paper.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-MOYAA05
About •	paper received ※ 23 September 2018 paper accepted ※ 08 March 2019 issue date ※ 21 April 2019
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TUYBA05	Analytical Estimation of the Beam-beam Limited Dynamic Apertures and Liftimes
	J. Gao IHEP, Beijing, People’s Republic of China
	In this paper, we will discuss analytical estimation of the beam beam limited dynamic aperture and lifetimes, which are very important for modern electron positron designs and operations, such as CEPC and FCCee, super Tau Charm factories, Super KEK B and BEPC-II, etc. This dicussion is in complementary to the beam beam limit discussion from the beam beam heating induced diffussion effect. The combination of the two effects from beam-beam interaction, i.e. nonlinear beam beam induced dynamic aperture limitation effect and the heating induced diffusion effect, makes the discussion of beam beam effect complete.
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TUPAB04	Overall Design of the CEPC Injector LINAC	139
	J.R. Zhang, Y.L. Chi, J. Gao, X.P. Li, C. Meng, G. Pei, S. Pei, D. Wang, C.H. Yu IHEP, Beijing, People’s Republic of China
	The CEPC injector consists of linac and booster. To meet the requirement of the booster, the linac should provide 10 GeV electron and positron beam at a repetition frequency of 100 Hz. In this paper, the overall design of the linac has introduced. For the linac one-bunch-per-pulse is adopted and bunch charge should be larger than 3 nC in the design. A 1.1 GeV damping ring with 75.4 m circumference has adopted to reduce the transverse emittance of positron beam to suitably small value.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-TUPAB04
About •	paper received ※ 26 September 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019
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TUPAB06	Design and Beam Dynamics of the CEPC Booster	146
	D. Wang, X. Cui, J. Gao, D. Ji, Y.D. Liu, C. Meng, N. Wang, C.H. Yu, J.Y. Zhai, Y. Zhang IHEP, Beijing, People’s Republic of China
	The CEPC booster needs to provide electron and positron beams to the collider at different energy with required injection speed. A 10 GeV linac is adopted as the injector for CDR. Then the beam energy is accelerated to specific energy according to three modes of CEPC collider ring (H, W and Z). The geometry of booster is designed carefully in order to share the same tunnel with collider. The design status of booster including parameters, optics and dynamic aperture is discussed in this paper.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-TUPAB06
About •	paper received ※ 26 September 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019
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WEXBA05	Machine Detector Interface for CEPC	217
	S. Bai, J. Gao, H. Geng, D. Wang, Y. Wang, C.H. Yu, Y. Zhang, Y.S. Zhu IHEP, Beijing, People’s Republic of China
	The Circular Electron Positron Collider (CEPC) is a proposed Higgs factory with center of mass energy of 240 GeV to measure the properties of Higgs boson and test the standard model accurately. Machine Detector Interface (MDI) is the key research area in electron-positron colliders, especially in CEPC, it is one of the criteria to measure the accelerator and detector design performance. In this paper, we will introduce the CEPC superconducting magnets design, solenoid compensation, synchrotron radiation and mask design, detector background, collimator, mechanics assembly etc on, which are the most critical physics problem.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-WEXBA05
About •	paper received ※ 29 September 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019
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Paper

Title

Page

The Status of CEPC

30

C.H. Yu, S. Bai, T.J. Bian, X. Cui, J. Gao, H. Geng, D.J. Gong, D. Ji, Y.D. Liu, C. Meng, Q. Qin, D. Wang, N. Wang, Y. Wang, Y. Wei, J.Y. Zhai, Y. Zhang, H.J. Zheng, Y.S. Zhu
IHEP, Beijing, People’s Republic of China

Circular electron-positron collider (CEPC) is a dedi-cated project proposed by China to research the Higgs boson. The collider ring provides e⁺ e⁻ collision at two interaction points (IP). The luminosity for the Higgs mode at the beam energy of 120GeV is 3*10³⁴ cm^-2s^-1 at each IP while the synchrotron radiation (SR) power per beam is 30MW. Furthermore, CEPC is compatible with W and Z experiments, for which the beam ener-gies are 80 GeV and 45.5 GeV respectively. The lumi-nosity at the Z mode is higher than 1.7*10³⁵ cm^-2s^-1 per IP. Top-up operation is available during the data taking of high energy physics. The status of CEPC will be introduced in detail in this paper.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-MOYAA05

About •

paper received ※ 23 September 2018 paper accepted ※ 08 March 2019 issue date ※ 21 April 2019

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TUYBA05

Analytical Estimation of the Beam-beam Limited Dynamic Apertures and Liftimes

J. Gao
IHEP, Beijing, People’s Republic of China

In this paper, we will discuss analytical estimation of the beam beam limited dynamic aperture and lifetimes, which are very important for modern electron positron designs and operations, such as CEPC and FCCee, super Tau Charm factories, Super KEK B and BEPC-II, etc. This dicussion is in complementary to the beam beam limit discussion from the beam beam heating induced diffussion effect. The combination of the two effects from beam-beam interaction, i.e. nonlinear beam beam induced dynamic aperture limitation effect and the heating induced diffusion effect, makes the discussion of beam beam effect complete.

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TUPAB04

Overall Design of the CEPC Injector LINAC

139

J.R. Zhang, Y.L. Chi, J. Gao, X.P. Li, C. Meng, G. Pei, S. Pei, D. Wang, C.H. Yu
IHEP, Beijing, People’s Republic of China

The CEPC injector consists of linac and booster. To meet the requirement of the booster, the linac should provide 10 GeV electron and positron beam at a repetition frequency of 100 Hz. In this paper, the overall design of the linac has introduced. For the linac one-bunch-per-pulse is adopted and bunch charge should be larger than 3 nC in the design. A 1.1 GeV damping ring with 75.4 m circumference has adopted to reduce the transverse emittance of positron beam to suitably small value.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-TUPAB04

About •

paper received ※ 26 September 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPAB06

Design and Beam Dynamics of the CEPC Booster

146

D. Wang, X. Cui, J. Gao, D. Ji, Y.D. Liu, C. Meng, N. Wang, C.H. Yu, J.Y. Zhai, Y. Zhang
IHEP, Beijing, People’s Republic of China

The CEPC booster needs to provide electron and positron beams to the collider at different energy with required injection speed. A 10 GeV linac is adopted as the injector for CDR. Then the beam energy is accelerated to specific energy according to three modes of CEPC collider ring (H, W and Z). The geometry of booster is designed carefully in order to share the same tunnel with collider. The design status of booster including parameters, optics and dynamic aperture is discussed in this paper.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-TUPAB06

About •

paper received ※ 26 September 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEXBA05

Machine Detector Interface for CEPC

217

S. Bai, J. Gao, H. Geng, D. Wang, Y. Wang, C.H. Yu, Y. Zhang, Y.S. Zhu
IHEP, Beijing, People’s Republic of China

The Circular Electron Positron Collider (CEPC) is a proposed Higgs factory with center of mass energy of 240 GeV to measure the properties of Higgs boson and test the standard model accurately. Machine Detector Interface (MDI) is the key research area in electron-positron colliders, especially in CEPC, it is one of the criteria to measure the accelerator and detector design performance. In this paper, we will introduce the CEPC superconducting magnets design, solenoid compensation, synchrotron radiation and mask design, detector background, collimator, mechanics assembly etc on, which are the most critical physics problem.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-WEXBA05

About •

paper received ※ 29 September 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)