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All Two-Loop Feynman Integrals for Five-Point One-Mass Scattering
Samuel Abreu1,2, Dmitry Chicherin3, Harald Ita4,5
1CERN, Theoretical Physics Department, CH-1211 Geneva 23, Switzerland.
Researchers computed two-loop master integrals for scattering processes involving four massless and one massive particle. These results enable precise quantum chromodynamics (QCD) calculations for particle physics at the Large Hadron Collider (LHC).
Area of Science:
- High Energy Physics
- Quantum Field Theory
- Particle Phenomenology
Background:
- Precise theoretical predictions are crucial for interpreting experimental results at particle colliders like the LHC.
- Next-to-next-to-leading order (NNLO) QCD corrections are essential for high-precision studies of particle production.
Purpose of the Study:
- To compute the complete set of two-loop master integrals for a specific type of scattering process.
- To provide essential theoretical tools for advancing precision calculations in particle physics.
Main Methods:
- Calculation of two-loop Feynman integrals for scattering of four massless and one massive particle.
- Development of analytical techniques for handling complex multi-loop integrals in quantum field theory.
Main Results:
- The complete set of two-loop master integrals for the considered scattering process has been computed.
- These results are analytically expressed and ready for direct application in phenomenological studies.
Conclusions:
- The computed master integrals remove a significant obstacle for NNLO QCD corrections to LHC processes.
- The findings facilitate precision studies of Higgs, Z, and W boson production in association with two jets.
- The results offer valuable analytic data for exploring quantum field theory structures and Feynman integral properties.
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