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Эта публикация цитируется в 1 научной статье (всего в 1 статье)
From Twistor-Particle Models to Massive Amplitudes
Giulia Albonicoa, Yvonne Geyerb, Lionel Masona a The Mathematical Institute, University of Oxford, Oxford OX2 6GG, UK
b Department of Physics, Faculty of Science, Chulalongkorn University,
Thanon Phayathai, Pathumwan, Bangkok 10330, Thailand
Аннотация:
In his twistor-particle programme of the 1970's, Roger Penrose introduced a representation of the massive particle phase space in terms of a pair of twistors subject to an internal symmetry group. Here we use this representation to introduce a chiral string whose target is a complexification of this space, extended so as to incorporate supersymmetry. We show that the gauge anomalies associated to the internal symmetry group vanish only for maximal supersymmetry, and that correlators in these string models describe amplitudes involving massive particles with manifest supersymmetry. The models and amplitude formulae exhibit a double copy structure from gauge theory on the Coulomb branch to gravity, although the graviton remains massless. The formulae are closely related to those obtained earlier by the authors expressed in terms of the polarised scattering equations.
Ключевые слова:
twistor theory, scattering amplitudes, ambitwistor string.
Поступила: 19 марта 2022 г.; в окончательном варианте 8 июня 2022 г.; опубликована 19 июня 2022 г.
Образец цитирования:
Giulia Albonico, Yvonne Geyer, Lionel Mason, “From Twistor-Particle Models to Massive Amplitudes”, SIGMA, 18 (2022), 045, 21 pp.
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/sigma1841 https://www.mathnet.ru/rus/sigma/v18/p45
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