Twistors, Yang-Mills and Super-String theory

• Grant number: 13/11409-7
• Support type: Scholarships abroad - Research Internship - Post-doctor
• Effective date (Start): July 30, 2013
• Effective date (End): July 29, 2014
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal researcher: Andrey Yuryevich Mikhaylov
• Grantee: Humberto Gomez Zuñiga
• Supervisor abroad: Freddy Cachazo
• Home Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil
• Research place: Perimeter Institute for Theoretical Physics, Canada
• Associated to the scholarship: 11/13013-8 - Scattering amplitudes, pure spinors and AdS/CFT, BP.PD

Abstract

The twistor space had shown to be a powerful tool to understand the scattering amplitudes in N=4 d=4 Super-Yang-Mills theory. In this project, we intend to utilize a similar approach in order to obtain a better understanding at loop level of N=8 d=4 supergravity as well as of N=1 d=10 SYM theory, which can be the key to find the origin of the pure spinor formalism. (AU)

Scientific publications

(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)

GOMEZ, HUMBERTO; YUAN, ELLIS YE. N-point tree-level scattering amplitude in the new Berkovits' string. Journal of High Energy Physics, n. 4, APR 7 2014. (13/11409-7)

GOMEZ, HUMBERTO; MAFRA, CARLOS R.. The closed-string 3-loop amplitude and S-duality. Journal of High Energy Physics, n. 10, OCT 30 2013. (13/11409-7)

GOMEZ, HUMBERTO; MAFRA, CARLOS R.; SCHLOTTERER, OLIVER. Two-loop superstring five-point amplitude and S-duality. Physical Review D, v. 93, n. 4, FEB 24 2016. (13/11409-7)