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Connected formulas for amplitudes in standard model
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.
2017
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号3页码:93
文章类型Article
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.
关键词Effective Field Theories Higgs Physics Perturbative Qcd Scattering Amplitudes
学科领域Physics
资助者Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; NSFC [11235003] ; NSFC [11235003] ; NSFC [11235003] ; NSFC [11235003] ; Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; NSFC [11235003] ; NSFC [11235003] ; NSFC [11235003] ; NSFC [11235003]
DOIhttp://dx.doi.org/10.1007/JHEP03(2017)093
语种英语
资助者Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; NSFC [11235003] ; NSFC [11235003] ; NSFC [11235003] ; NSFC [11235003] ; Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Thousand Young Talents program ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; Key Research Program of Frontier Sciences of CAS [QYZDBSSW-SYS014] ; NSFC [11235003] ; NSFC [11235003] ; NSFC [11235003] ; NSFC [11235003]
WOS类目Physics, Particles & Fields
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22103
专题理论物理所SCI论文
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.
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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.
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