Analysis Techniques and Algorithms for QCD Studies

A special issue of Universe (ISSN 2218-1997). This special issue belongs to the section "High Energy Nuclear and Particle Physics".

Deadline for manuscript submissions: closed (31 August 2021) | Viewed by 2698

Special Issue Editors


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Guest Editor
Argonne National Laboratory, HEP Division, ANL, 9700 S.Cass, Lemont, IL 60439, USA
Interests: QCD; Standard Model; jets; BSM

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Guest Editor
Department of Physics, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, IL 60616-3793, USA
Interests: QCD; top quarks; proton structure

Special Issue Information

Dear Colleagues,

This Special Issue of Universe from MDPI is dedicated to analysis techniques used in particle collision experiments (e+e-, ep, pp, and heavy ions) that establish quantum chromodynamics (QCD) as a theory of strong interactions. The main topics cover the precision measurements of hadronic jets, forward jet physics, boosted jets and jet substructures, event shapes, event flows, studies of parton density functions, hadronic structure, measurements of the strong coupling constant, particle production, heavy flavour, and particle spectroscopy. Proposals for novel observables that can verify QCD and constrain its parameters beyond the already achieved precision are partcularly welcome. Tools and algorithms used for QCD measurements, such as jet clustering algorithms, track and particle-flow reconstruction, and methods based on machine learning techniques will also be covered.

Dr. Sergei Chekanov
Prof. Dr. Zack Sullivan
Guest Editors

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Keywords

  • QCD
  • strong coupling constant
  • cross sections
  • jets
  • particle spectroscopy

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Published Papers (1 paper)

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Research

66 pages, 15044 KiB  
Article
Applications of pT-xR Variables in Describing Inclusive Cross Sections at the LHC
by Frank E. Taylor
Universe 2021, 7(6), 196; https://doi.org/10.3390/universe7060196 - 9 Jun 2021
Viewed by 2143
Abstract
Invariant inclusive single-particle/jet cross sections in p–p collisions can be factorized in terms of two separable pT dependences, a [pTs] sector and an [xRpTs] sector. Here, we extend our [...] Read more.
Invariant inclusive single-particle/jet cross sections in p–p collisions can be factorized in terms of two separable pT dependences, a [pTs] sector and an [xRpTs] sector. Here, we extend our earlier work by analyzing more extensive data to explore various s-dependent attributes and other systematics of inclusive jet, photon and single particle reactions. Approximate power laws in s, pT and xR are found. Physical arguments are given which relate observations to the underlying physics of parton–parton hard scattering and the parton distribution functions in the proton. We show that the A(s,pT) function, introduced in our earlier publication to describe the pT dependence of the inclusive cross section, is directly related to the underlying hard parton–parton scattering for jet production, with little influence from soft physics. In addition to the a function, we introduce another function, the F(s,xR) function that obeys radial scaling for inclusive jets and offers another test of the underlying parton physics. An application to heavy ion physics is given, where we use our variables to determine the transparency of cold nuclear matter to penetrating heavy mesons through the lead nucleus. Full article
(This article belongs to the Special Issue Analysis Techniques and Algorithms for QCD Studies)
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