01 · Physics
Local Unitarity
Differential collider cross-sections with local cancellation of infrared singularities.
About the collaboration
Precision through local cancellation.
The αLoop collaboration develops theoretical and algorithmic methods for automated cross-section calculations in quantum field theory, centred on Local Unitarity.
Why αLoop
Precision is another path to discovery.
The lack of obvious sign of new physics phenomenon in collider experiments is an opportunity to take a step back and reflect on the amazing theory we have discovered so far: the Standard Model. In particular, we must now strive to make ever more precise predictions so as to hunt for indirect evidence of new physics in small departure from expectations.
For this reason, our collaboration is dedicated to theoretical and algorithmic research for the automated computation of cross-sections in Quantum Field Theories at arbitrary perturbative orders. In particular, we develop a new theoretical framework called Local Unitarity (LU) which approaches this problem from an unorthodox way, particularly suited to numerical computations.
From method to software
One research programme, connected structures.
02 · Structures
Graphs and tensors
Half-edge graphs, typed tensors, symbolic identities, and executable contraction networks.
03 · Integrals
Symbolic evaluation
Controlled rewrite systems and vacuum-integral matching for reproducible calculations.
Affiliations
Research across institutions.
αLoop connects collider-physics research, mathematical structures, and open scientific-software development.
The collaboration