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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).

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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.