Connected formulas for amplitudes in standard model
文献类型：期刊论文
| 作者 | He, S; Zhang, Y; He, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China. ; He, S (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yunnan Rd, Beijing 100049, Peoples R China.
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| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
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| 出版日期 | 2017 |
| 期号 | 3页码:93 |
| 关键词 | Effective Field Theories Higgs Physics Perturbative Qcd Scattering Amplitudes |
| DOI | http://dx.doi.org/10.1007/JHEP03(2017)093 |
| 英文摘要 | Witten's twistor string theory has led to new representations of S-matrix in massless QFT as a single object, including Cachazo-He-Yuan formulas in general and connected formulas in four dimensions. As a first step towards more realistic processes of the standard model, we extend the construction to QCD tree amplitudes with massless quarks and those with a Higgs boson. For both cases, we find connected formulas in four dimensions for all multiplicities which are very similar to the one for Yang-Mills amplitudes. The formula for quark-gluon color-ordered amplitudes differs from the pure-gluon case only by a Jacobian factor that depends on flavors and orderings of the quarks. In the formula for Higgs plus multi-parton amplitudes, the massive Higgs boson is effectively described by two additional massless legs which do not appear in the Parke-Taylor factor. The latter also represents the first twistor-string/connected formula for form factors. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22103]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 中国科学院理论物理研究所 |
| 通讯作者 | He, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; He, S (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yunnan Rd, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | He, S,Zhang, Y,He, S ,et al. Connected formulas for amplitudes in standard model[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(3):93. |
| APA | He, S,Zhang, Y,He, S ,&He, S .(2017).Connected formulas for amplitudes in standard model.JOURNAL OF HIGH ENERGY PHYSICS(3),93. |
| MLA | He, S,et al."Connected formulas for amplitudes in standard model".JOURNAL OF HIGH ENERGY PHYSICS .3(2017):93. |
入库方式： OAI收割
来源：理论物理研究所
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