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Threshold and Jet Radius Joint Resummation for Single-Inclusive Jet Production
Xiaohui Liu1, Sven-Olaf Moch2, Felix Ringer3
1Center of Advanced Quantum Studies, Department of Physics, Beijing Normal University, Beijing 100875, China.
Physical Review Letters
|December 9, 2017
Summary
We present the first jointly resummed cross section for hadronic jet production. This advancement improves Large Hadron Collider (LHC) data description and aids in determining fundamental physics constants.
Area of Science:
- High Energy Physics
- Quantum Chromodynamics (QCD)
Background:
- Precision measurements at the Large Hadron Collider (LHC) require accurate theoretical predictions.
- Calculating single-inclusive hadronic jet production is crucial for understanding QCD and probing fundamental parameters.
Purpose of the Study:
- To present the first threshold and jet radius jointly resummed cross section for single-inclusive hadronic jet production.
- To achieve next-to-leading logarithmic accuracy in theoretical calculations.
- To provide a framework for systematic improvements in precision.
Main Methods:
- Developed a novel framework for jointly resumming cross sections.
- Employed soft collinear effective theory (SCET) in momentum space.
- Overcame long-standing numerical issues in resummation calculations.
Main Results:
- Presented the first numerical results for the LHC.
- Observed an improved description of available experimental data.
- Achieved next-to-leading logarithmic accuracy.
Conclusions:
- The new method provides a significant advancement in theoretical predictions for hadronic jet production.
- Results are immediately relevant for LHC precision phenomenology.
- Enables more precise extraction of parton distribution functions and the QCD strong coupling constant.
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