Flavor Identification of Reconstructed Hadronic Jets

Identifying the flavor of reconstructed hadronic jets is critical for precision phenomenology and the search for new physics at collider experiments, as it allows one to pinpoint specific scattering processes and reject backgrounds. Jet measurements at the LHC are almost universally performed using the anti-kT algorithm; however, no approach exists to define the jet flavor for this algorithm that is infrared and collinear safe. We propose a new approach, a flavor-dressing algorithm, that is infrared and collinear safe in perturbation theory and can be combined with any definition of a jet. We test the algorithm in an e+e- environment and consider the pp & RARR; Z + b -jet process as a practical application at hadron colliders.

Automated summary

Identifying the flavor of reconstructed hadronic jets is crucial for precision phenomenology and the search for new physics. However, no infrared and collinear safe approach exists for defining the jet flavor using the anti-kT algorithm. We propose a new flavor-dressing algorithm that solves this problem and can be combined with any jet definition. The algorithm is tested in an e+e- environment and applied to the pp & RARR; Z + b -jet process at hadron colliders.