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10-dimensional Twistors and superstring amplitudes

Grant number: 16/16824-0
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2017
Effective date (End): February 28, 2021
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal researcher:Nathan Jacob Berkovits
Grantee:Matheus Loss Lize
Home Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil
Associated research grant:16/01343-7 - ICTP South American Institute for Fundamental Research: a regional center for theoretical physics, AP.TEM
Associated scholarship(s):19/17805-8 - Extending the Chiral String model, BE.EP.DR


Twistor theory and superstring theory were developed in the 1970s as possible alternatives to quantum field theory. Ten years ago these two theories were unified to describe N=4 d=4 super-Yang-Mills producing more efficient methods to compute scattering amplitudes. This doctoral project will be to study the role of twistors in the d=10 superstring formalism with pure spinors and use this twistorial interpretation to simplify the calculations of d=10 super-Yang-Mills and d=10 supergravity amplitudes in the superstring. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BERKOVITS, NATHAN; LIZE, MATHEUS. Field theory actions for ambitwistor string and superstring. Journal of High Energy Physics, n. 9, . (16/01343-7, 16/16824-0, 14/18634-9)
AZEVEDO, THALES; JUSINSKAS, RENANN LIPINSKI; LIZE, MATHEUS. Bosonic sectorized strings and the (DF)(2) theory. Journal of High Energy Physics, n. 1, . (16/16824-0)
FLORES, HENRIQUE; LIZE, MATHEUS. On the spectrum and spacetime supersymmetry of heterotic ambitwistor string. Journal of High Energy Physics, n. 8, . (16/16824-0)
BENAKLI, KARIM; BERKOVITS, NATHAN; DANIEL, CASSIANO A.; LIZE, MATHEUS. Higher-spin states of the superstring in an electromagnetic background. Journal of High Energy Physics, n. 12, . (19/17805-8, 20/10183-9, 19/24277-8, 16/01343-7, 19/21281-4, 16/16824-0)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
LIZE, Matheus Loss. Field theory actions for ambitwistor strings. 2021. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Instituto de Física Teórica (IFT). São Paulo São Paulo.

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