Higgs Amplitudes From Twistor Inspired Methods
S. D. Badger (Saclay, SPhT), E. W. N. Glover (IPPP, Durham U.), Kasper, Risager (Bohr Inst.)
TL;DR
This paper demonstrates the application of modern on-shell techniques, including unitarity cuts and recursion relations, to compute Higgs-related scattering amplitudes in a simplified effective theory.
Contribution
It introduces a novel combination of on-shell methods to efficiently calculate Higgs amplitudes in the large top mass limit.
Findings
Successful computation of the A_4^{(1)}(phi,1^-,2^-,3^+,4^+) amplitude
Validation of on-shell methods for Higgs amplitude calculations
Potential for extending techniques to more complex processes
Abstract
We illustrate the use of new on-shell methods, 4-dimensional unitarity cuts combined with on-shell recursions relations, by computing the A_4^{(1)}(phi,1^-,2^-,3^+,4^+) amplitude in the large top mass limit where the Higgs boson couples to gluons through an effective interaction.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Accelerators and Free-Electron Lasers · Quantum Chromodynamics and Particle Interactions