TASI Lectures on Collider Physics

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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PARTON DISTRIBUTION FUNCTIONS AND THE QCD-IMPROVED PARTON MODEL — AN OVERVIEW

International Journal of Modern Physics A ◽

10.1142/s0217751x87000740 ◽

1987 ◽

Vol 02 (04) ◽

pp. 1369-1387 ◽

Cited By ~ 7

Author(s):

Wu-Ki Tung

Keyword(s):

Parton Distribution ◽

Particle Production ◽

Heavy Particle ◽

Parton Model ◽

Distribution Functions ◽

Collider Physics ◽

Parton Distribution Functions ◽

Parton Distributions ◽

First Order ◽

Small X

Some non-trivial features of the QCD-improved parton model relevant to applications on heavy particle production and semi-hard (small-x) processes of interest to collider physics are reviewed. The underlying ideas are illustrated by a simple example. Limitations of the naive parton formula as well as first order corrections and subtractions to it are dis-cussed in a quantitative way. The behavior of parton distribution functions at small x and for heavy quarks are discussed. Recent work on possible impact of unconventional small-x behavior of the parton distributions on small-x physics at SSC and Tevatron are summarized. The Drell-Yan process is found to be particularly sensitive to the small x dependence of parton distributions. Measurements of this process at the Tevatron can provide powerful constraints on the expected rates of semi-hard processes at the SSC.

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PROSPECTS FOR RUN II BEAUTY PHYSICS AT DØ

International Journal of Modern Physics A ◽

10.1142/s0217751x01007121 ◽

2001 ◽

Vol 16 (supp01a) ◽

pp. 425-427

Author(s):

◽

WENDY TAYLOR

Keyword(s):

Cp Violation ◽

Full Advantage ◽

B Physics ◽

Collider Physics ◽

High Luminosity ◽

Vertex Detector ◽

Physics Program ◽

Integrated Luminosity

In the spring of 2001, the upgraded Fermilab Tevatron will begin its collider physics run with [Formula: see text] collisions at [Formula: see text], where it is expected to deliver an integrated luminosity of 2 fb -1 in the first two years. The DØ detector is undergoing an extensive upgrade in order to take full advantage of the high luminosity running conditions. The upgraded detector's new silicon vertex detector, fiber tracker, and lepton trigger capabilities make a rich B physics program possible at DØ. This paper describes the prospects for several DØ B physics measurements, including CP violation in [Formula: see text] decays, Bs mixing and [Formula: see text] lifetime.

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