Journal
PHYSICAL REVIEW LETTERS
Volume 121, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.072003
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Funding
- GRK Symmetry Breaking [DFG/GRK 1581]
- Deutsche Forschungsgemeinschaft through the project Infrared and threshold effects in QCD
- GFK fellowship
- Cluster of Excellence 1098: Precision Physics, Fundamental Interactions and Structure of Matter at JGU Mainz [PRISMA-EXC 1098]
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We calculate the massless quark jet function to three-loop order. The quark jet function is a universal ingredient in SCET factorization for many collider and decay processes with quark initiated final state jets. Our three-loop result contributes to the resummation for observables probing the invariant mass of final state quark jets at primed next-to-next-to-next-to-leading-logarithmic accuracy. It represents the first complete three-loop result for a factorization ingredient describing collinear radiation. Furthermore it constitutes a major component of the N-jettiness subtraction method at next-to-next-to-next-to-leading order accuracy, which eventually may enable the calculation of fully differential cross sections with a colorful final state at this order.
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