Open Access
Foundations of Perturbative QCD
TLDR
In this paper, a systematic treatment of perturbative QCD is given, giving an accurate account of the concepts, theorems and their justification, giving strong motivations for the methods.Abstract:
The most non-trivial of the established microscopic theories of physics is QCD: the theory of the strong interaction. A critical link between theory and experiment is provided by the methods of perturbative QCD, notably the well-known factorization theorems. Giving an accurate account of the concepts, theorems and their justification, this book is a systematic treatment of perturbative QCD. As well as giving a mathematical treatment, the book relates the concepts to experimental data, giving strong motivations for the methods. It also examines in detail transverse-momentum-dependent parton densities, an increasingly important subject not normally treated in other books. Ideal for graduate students starting their work in high-energy physics, it will also interest experienced researchers wanting a clear account of the subject.read more
Citations
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Unpolarized transverse momentum distributions from a global fit of Drell-Yan and semi-inclusive deep-inelastic scattering data
Alessandro Bacchetta,Valerio Bertone,Chiara Bissolotti,Giuseppe Bozzi,Matteo Cerutti,Fulvio Piacenza,Marco Radici,Andrea Signori +7 more
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Calculation of transverse momentum dependent distributions beyond the leading power
Valentin Moos,Alexey Vladimirov +1 more
TL;DR: In this paper, the contribution of twist-2 and twist-3 parton distribution functions to the small-b expansion for transverse momentum dependent (TMD) distributions at all powers of b was computed by the twistdecomposition method based on the spinor formalism for all eight quark TMD distributions.
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Single Transverse-Spin Asymmetry and Sivers Function in Large Momentum Effective Theory
TL;DR: In this paper, a nonperturbative calculation of the single transverse-spin asymmetry from the so-called Sivers mechanism in terms of quasi-transverse-momentum-dependent quark distribution functions is presented.
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Double hard scattering without double counting
TL;DR: In this article, the authors define double parton distributions as operator matrix elements in a proton, which can be used at higher orders in perturbation theory, and show how the evaluation of double hard scattering in this framework can provide a rough estimate for the size of higher-order contributions to single hard scattering that are affected by double counting.
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Gluon TMDs in Quarkonium Production
TL;DR: In this article, the impact of transverse momentum dependent parton distribution functions (TMD PDFs) for gluons at hadron colliders, especially at A Fixed Target Experiment at the LHC (AFTER@LHC), was investigated.