Celestial Liouville theory for Yang-Mills amplitudes
Celestial Liouville theory for Yang-Mills amplitudes
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杨米尔斯振幅的天体刘维尔理论
DOI:
10.1016/j.physletb.2022.137588
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发表时间:
2023
影响因子:
4.4
通讯作者:
Zhu, Bin
中科院分区:
文献类型:
--
作者:
Stieberger, Stephan;Taylor, Tomasz R.;Zhu, Bin
We consider Yang-Mills theory with the coupling constant and theta angle determined by the vacuum expectation values of a dynamical (complex, zero mass) dilaton field. We discuss the tree-levelN-gluon MHV scattering amplitudes in the presence of a nontrivial background dilaton field and construct the corresponding celestial amplitudes by taking Mellin transforms with respect to the light cone frame energies. In this way, we obtain two-dimensional CFT correlators of primary fields on the celestial sphere. We show that the celestial Yang-Mills amplitudes evaluated in the presence of a spherical dilaton shockwave are given by the correlation functions of primary field operators factorized into the holomorphic current operators times the “light” Liouville operators. They are evaluated in the semiclassical limit of Liouville theory (the limit of infinite central charge) and are determined by the classical Liouville field describing metrics on the celestial sphere.
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影响因子:
5.4
作者:
Lei Gioia Yang;A. Raclariu
通讯作者:
A. Raclariu
影响因子:
5.4
作者:
Fan, Wei;Fotopoulos, Angelos;Stieberger, Stephan;Taylor, Tomasz R.;Zhu, Bin
通讯作者:
Zhu, Bin
影响因子:
5.4
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5.4
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通讯作者:
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