String Amplitudes from Field-Theory Amplitudes and Vice Versa

doi:10.1103/PhysRevLett.122.211603

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	String Amplitudes from Field-Theory Amplitudes and Vice Versa
	He, S 1; Teng, F 3; Zhang, Y 1
刊名	PHYSICAL REVIEW LETTERS
	2019
卷号	122 期号:21 页码:UNSP 211603
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.122.211603
英文摘要	We present an integration-by-parts reduction of any massless tree-level string correlator to an equivalence class of logarithmic finzctions, which can be used to define a field-theory amplitude via a Cachazo-He-Yuan (CHY) formula. The string amplitude is then shown to be the double copy of the field theory one and a special disk or sphere integral. The construction is generic as it applies to any correlator that is a rational function of correct SL(2) weight. By applying the reduction to open bosonic or heterotic strings, we get a closed-form CHY integrand for the (DF)(2) + Yang-Mills + phi(3) theory.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23418]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Uppsala Univ, Dept Phys & Astron, S-75108 Uppsala, Sweden 3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	He, S,Teng, F,Zhang, Y. String Amplitudes from Field-Theory Amplitudes and Vice Versa[J]. PHYSICAL REVIEW LETTERS,2019,122(21):UNSP 211603.
APA	He, S,Teng, F,&Zhang, Y.(2019).String Amplitudes from Field-Theory Amplitudes and Vice Versa.PHYSICAL REVIEW LETTERS,122(21),UNSP 211603.
MLA	He, S,et al."String Amplitudes from Field-Theory Amplitudes and Vice Versa".PHYSICAL REVIEW LETTERS 122.21(2019):UNSP 211603.