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A differential oper...
A differential operator for integrating one-loop scattering equations
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- Wang, Tianheng (författare)
- Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China.
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- Chen, Gang (författare)
- Uppsala universitet,Teoretisk fysik,Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China.;Zhejiang Normal Univ, Dept Phys, Jinhua, Zhejiang, Peoples R China.
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- Cheung, Yeuk-Kwan E. (författare)
- Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China.
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- Xu, Feng (författare)
- Weavi Corp Ltd, Nanjing, Jiangsu, Peoples R China.
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Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China Teoretisk fysik (creator_code:org_t)
- SPRINGER, 2017
- 2017
- Engelska.
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Ingår i: Journal of High Energy Physics (JHEP). - : SPRINGER. - 1126-6708 .- 1029-8479. ; :1
- Relaterad länk:
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We propose a differential operator for computing the residues associated with a class of meromorphic n-forms that frequently appear in the Cachazo-He-Yuan form of the scattering amplitudes. This differential operator is conjectured to be uniquely determined by the local duality theorem and the intersection number of the divisors in the n-form. We use the operator to evaluate the one-loop integrand of Yang-Mills theory from their generalized CHY formulae. The method can reduce the complexity of the calculation. In addition, the expression for the 1-loop four-point Yang-Mills integrand obtained in our approach has a clear correspondence with the Q-cut results.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Scattering Amplitudes
- Conformal Field Theory
- Differential and Algebraic Geometry
- Supersymmetric gauge theory
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- art (ämneskategori)
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