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MHV gluon scattering in the massive scalar background and celestial OPE

Banerjee, S and Mandal, R and Manu, A and Paul, P (2023) MHV gluon scattering in the massive scalar background and celestial OPE. In: Journal of High Energy Physics, 2023 (10).

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Official URL: https://doi.org/10.1007/JHEP10(2023)007


In this paper we study the tree-level OPE between two positive helicity outgoing gluons in the celestial CFT for the Yang-Mills theory chirally coupled to a massive scalar background. This theory breaks the translation as well as scale invariance. We compute the subleading terms in the OPE expansion and show that they are same as the subleading terms of the OPE expansions in the MHV sector. As a result the amplitudes of this theory also satisfy the set of differential equations obtained previously for MHV amplitudes in pure YM theory. This is not surprising because the symmetries coming from the leading and subleading soft gluon theorems do not change in the presence of a massive scalar background. © 2023, The Author(s).

Item Type: Journal Article
Publication: Journal of High Energy Physics
Publisher: Springer Science and Business Media Deutschland GmbH
Additional Information: The copyright for this article belongs to the Authors.
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 14 Dec 2023 04:20
Last Modified: 14 Dec 2023 04:20
URI: https://eprints.iisc.ac.in/id/eprint/83400

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