Transmuting off-shell CHY integrals in the double-cover framework-Reference-Cited by-同舟云学术

Transmuting off-shell CHY integrals in the double-cover framework

Published:2020-11 Issue:11 Volume:80 Page:
ISSN:1434-6044
Container-title:The European Physical Journal C
language:en
Short-container-title:Eur. Phys. J. C

Author:

Zhou Kang,Zhou Guo-Jun

Abstract

AbstractIn this paper, by defining off-shell amplitudes as off-shell CHY integrals, and redefining the longitudinal operator, we demonstrate that the differential operators which link on-shell amplitudes for a variety of theories together link off-shell amplitudes in a similar manner. Based on the algebraic property of the differential operator, we also generalize three relations among color-ordered on-shell amplitudes, including the color-ordered reversed relation, the photon decoupling relation, the Kleiss–Kuijf relation, to off-shell ones. The off-shell CHY integrals are chosen to be in the double-cover framework, thus, as a by product, our result also provides a verification for the double-cover construction.

Funder

NSF of Jiangsu Province

Publisher

Springer Science and Business Media LLC

Subject

Physics and Astronomy (miscellaneous),Engineering (miscellaneous)

Link

http://link.springer.com/content/pdf/10.1140/epjc/s10052-020-08624-1.pdf

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