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Cross section and higgs mass measurement with higgsstrahlung at the cepc **supported by the joint funds of the nsfc (u1232105) and cas hundred talent program (y3515540u1)

文献类型:期刊论文

AuthorChen,Zhen-Xing1,2; Yang,Ying2; Ruan,Man-Qi2; Wang,Da-Yong1; Li,Gang2; Jin,Shan2; Ban,Yong1
SourceChinese physics c
Issued Date2017-02-01
Volume41Issue:2
ISSN1674-1137
Keyword13.66fg 14.80.bn 13.66.jn Cepc Higgs mass Cross section
DOI10.1088/1674-1137/41/2/023003
English AbstractAbstract 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. the cepc will accumulate an integrated luminosity of 5 ab?1 over ten years of operation, producing one million higgs bosons via the higgsstrahlung and vector boson fusion processes. this sample allows a percent or even sub-percent level determination of the higgs boson couplings. with geant4-based full simulation and a dedicated fast simulation tool, we have evaluated the statistical precisions of the higgstrahlung cross section σzh and the higgs mass mh measurement at the cepc in the z → μ+μ? channel. the statistical precision of σzh (mh) measurement could reach 0.97% (6.9 mev) in the model-independent analysis which uses only the information from z boson decays. for the standard model higgs boson, the mh precision could be improved to 5.4 mev by including the information from higgs decays. the impact of the tpc size on these measurements is investigated. in addition, we studied the prospect of measuring the higgs boson decaying into invisible final states at the cepc. with the standard model zh production rate, the upper limit of could reach 1.2% at 95% confidence level.
Language英语
WOS IDIOP:1674-1137-41-2-023003
PublisherIOP Publishing
URIhttp://www.irgrid.ac.cn/handle/1471x/2175677
Collection高能物理研究所
Affiliation1.State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
2.Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Recommended Citation
GB/T 7714
Chen,Zhen-Xing,Yang,Ying,Ruan,Man-Qi,et al. Cross section and higgs mass measurement with higgsstrahlung at the cepc **supported by the joint funds of the nsfc (u1232105) and cas hundred talent program (y3515540u1)[J]. Chinese physics c,2017,41(2).
APA Chen,Zhen-Xing.,Yang,Ying.,Ruan,Man-Qi.,Wang,Da-Yong.,Li,Gang.,...&Ban,Yong.(2017).Cross section and higgs mass measurement with higgsstrahlung at the cepc **supported by the joint funds of the nsfc (u1232105) and cas hundred talent program (y3515540u1).Chinese physics c,41(2).
MLA Chen,Zhen-Xing,et al."Cross section and higgs mass measurement with higgsstrahlung at the cepc **supported by the joint funds of the nsfc (u1232105) and cas hundred talent program (y3515540u1)".Chinese physics c 41.2(2017).

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来源:高能物理研究所

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