Z-pole test of effective dark matter diboson interactions at the CEPC

doi:10.1140/epjc/s10052-018-6093-5

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	Z-pole test of effective dark matter diboson interactions at the CEPC
	Gao Y(高宇); Jin MJ(金明杰); Jin, MJ; Gao, Y
刊名	EUROPEAN PHYSICAL JOURNAL C
	2018
卷号	78 期号:8 页码:622
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-018-6093-5
文献子类	Article
英文摘要	We investigate the projected sensitivity to effective dark matter (DM)-diboson interaction during the high luminosity Z-pole and 240GeV runs at the proposed Circular Electron Positron Collider (CEPC). The proposed runs at the 91.2GeV e(+)e(-) center of mass energy offers an interesting opportunity to probe effective dark matter couplings to the Z boson, which can be less stringently tested in non-collider searches. We investigate the prospective sensitivity for dimension 6 and dimension 7 effective diboson operators to scalar and fermion dark matter. These diboson operators can generate semi-visible Z boson decay, and high missing transverse momentum mono-photon signals that can be test efficiently at the CEPC, with a small and controllable Standard Model gamma(upsilon) over bar nu background. Projected sensitivities for the effective gamma Z coupling efficient kappa(gamma)Z < (1030 GeV)(-3), (1970 GeV)(-3) for scalar DM, kappa(gamma)Z < (360 GeV)(-3), (540 GeV)(-3) for fermion DM are obtain for 25 fb(-1) and 2.5ab(-1) Z-pole luminosities assuming the optimal low dark matter mass range. We also compare the CEPC sensitivities to current direct and indirect search limits on these effective DM-diboson operators.
电子版国际标准刊号	1434-6052
WOS关键词	Z-RESONANCE ; ANNIHILATION
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000440761300002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286181]
专题	高能物理研究所_粒子天体物理中心高能物理研究所_加速器中心
通讯作者	Gao Y(高宇)
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Gao Y,Jin MJ,Jin, MJ,et al. Z-pole test of effective dark matter diboson interactions at the CEPC[J]. EUROPEAN PHYSICAL JOURNAL C,2018,78(8):622.
APA	高宇,金明杰,Jin, MJ,&Gao, Y.(2018).Z-pole test of effective dark matter diboson interactions at the CEPC.EUROPEAN PHYSICAL JOURNAL C,78(8),622.
MLA	高宇,et al."Z-pole test of effective dark matter diboson interactions at the CEPC".EUROPEAN PHYSICAL JOURNAL C 78.8(2018):622.