Global QCD Analysis and Hadron Collider Physics

International Journal of Modern Physics A ◽

10.1142/s0217751x06031818 ◽

2006 ◽

Vol 21 (04) ◽

pp. 620-628

Author(s):

Wu-Ki Tung

Keyword(s):

Cross Sections ◽

Top Quark ◽

Global Analysis ◽

Hadron Collider ◽

New Physics ◽

Distribution Functions ◽

Current Status ◽

Collider Physics ◽

Parton Distribution Functions ◽

Qcd Analysis

The role of global QCD analysis of parton distribution functions (PDFs) in collider physics at the Tevatron and LHC is surveyed. Current status of PDF analyses are reviewed, emphasizing the uncertainties and the open issues. The stability of NLO QCD global analysis and its prediction on "standard candle" W/Z cross sections at hadron colliders are discussed. The importance of the precise measurement of various W/Z cross sections at the Tevatron in advancing our knowledge of PDFs, hence in enhancing the capabilities of making significant progress in W mass and top quark parameter measurements, as well as the discovery potentials of Higgs and New Physics at the Tevatron and LHC, is emphasized.

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QCD at Fixed Order: Processes

10.1093/oso/9780199652747.003.0004 ◽

2018 ◽

Author(s):

John Campbell ◽

Joey Huston ◽

Frank Krauss

Keyword(s):

Hadron Collider ◽

Detailed Comparison ◽

Theoretical Description ◽

Higgs Bosons ◽

Final States ◽

Collider Physics ◽

Wide Range ◽

Theoretical Predictions ◽

Fixed Order ◽

The Subject

At the core of any theoretical description of hadron collider physics is a fixed-order perturbative treatment of a hard scattering process. This chapter is devoted to a survey of fixed-order predictions for a wide range of Standard Model processes. These range from high cross-section processes such as jet production to much more elusive reactions, such as the production of Higgs bosons. Process by process, these sections illustrate how the techniques developed in Chapter 3 are applied to more complex final states and provide a summary of the fixed-order state-of-the-art. In each case, key theoretical predictions and ideas are identified that will be the subject of a detailed comparison with data in Chapters 8 and 9.

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