Probing new physics scales from Higgs and electroweak observables at e(+) e(-) Higgs factory
文献类型：期刊论文
| 作者 | Ge, Shao-Feng1; He, Hong-Jian2,3,4; Xiao, Rui-Qing2,3,5 |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2016-10-03 |
| 页码 | 48 |
| ISSN号 | 1029-8479 |
| 关键词 | Beyond Standard Model Higgs Physics |
| DOI | 10.1007/JHEP10(2016)007 |
| 英文摘要 | New physics beyond the standard model (SM) can be model-independently formulated via dimension-6 effective operators, whose coefficients (cutoffs) characterize the scales of new physics. We study the probe of new physics scales from the electroweak precision observables (EWPO) and the Higgs observables (HO) at the future e(+)e(-) Higgs factory (such as CEPC). To optimize constraints of new physics from all available observables, we establish a scheme-independent approach. With this formulation, we treat the SM electroweak parameters and the coefficients of dimension-6 operators on equal footing, which can be fitted simultaneously by the same chi(2) function. As deviations from the SM are generally small, we can expand the new physics parameters up to linear order and perform an analytical chi(2) fit to derive the potential reach of the new physics scales. We find that the HO from both Higgs produnction and decay rates can probe the new physics scales up to 10 TeV (and to 44 TeV for the case of gluon-involved operator O-g), and the new physics scales of Yukawa-type operators can be probed by the precision Higgs coupling measurements up to (13 - 25) TeV. Further including the EWPO can push the limit up to 35 TeV. From this prospect, we demonstrate that the EWPO measured in the early phase of a Higgs factory can be as important as the Higgs observables. These indirect probes of new physics scales at the Higgs factory can mainly cover the energy range to be directly explored by the next generation hadron colliders of pp (50 - 100TeV), such as the SPPC and FCC-hh. |
| WOS关键词 | STANDARD MODEL ; PHENOMENOLOGICAL LAGRANGIANS ; MASSLESS PARTICLES ; BROKEN SYMMETRIES ; GAUGE-THEORIES ; DARK-MATTER ; COUPLINGS ; BOSON ; CONSERVATION ; INFLATION |
| 资助项目 | National NSF of China[11275101] ; National NSF of China[11135003] ; Tsinghua University[20141081211] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000385397500002 |
| 资助机构 | National NSF of China ; Tsinghua University |
| 源URL | [http://119.78.100.186/handle/113462/43517]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Ge, Shao-Feng |
| 作者单位 | 1.Max Planck Inst Kernphys, D-69117 Heidelberg, Germany 2.Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China 3.Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China 4.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 5.Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Ge, Shao-Feng,He, Hong-Jian,Xiao, Rui-Qing. Probing new physics scales from Higgs and electroweak observables at e(+) e(-) Higgs factory[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016:48. |
| APA | Ge, Shao-Feng,He, Hong-Jian,&Xiao, Rui-Qing.(2016).Probing new physics scales from Higgs and electroweak observables at e(+) e(-) Higgs factory.JOURNAL OF HIGH ENERGY PHYSICS,48. |
| MLA | Ge, Shao-Feng,et al."Probing new physics scales from Higgs and electroweak observables at e(+) e(-) Higgs factory".JOURNAL OF HIGH ENERGY PHYSICS (2016):48. |
入库方式： OAI收割
来源：近代物理研究所
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