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-<math display="inline"><mrow><msub><mrow><mi>k</mi></mrow><mrow><mi>T</mi></mrow></msub></mrow></math> 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 <math display="inline"><msup><mi>e</mi><mo>+</mo></msup><msup><mi>e</mi><mo>-</mo></msup></math> environment and consider the <math display="inline"><mrow><mi>p</mi><mi>p</mi><mo stretchy="false">→</mo><mi>Z</mi><mo>+</mo><mi>b</mi><mtext>-</mtext><mtext>jet</mtext></mrow></math> process as a practical application at hadron colliders.