One loop amplitude from null string

Abstract We generalize the CHY formalism to one-loop level, based on the framework of the null string theory. The null string, a tensionless string theory, produces the same results as the ones from the chiral ambitwistor string theory, with the latter believed to give a string interpretation of the...

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Bibliographic Details
Main Authors: Ming Yu, Chi Zhang, Yao-Zhong Zhang
Format: Article
Language:English
Published: SpringerOpen 2017-06-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP06(2017)051