Next-to-Leading Order Hard Scattering Using Fully Unintegrated Parton Distribution Functions
arXiv:0807.2430 · doi:10.1103/PhysRevD.78.074018
Abstract
We calculate the next-to-leading order fully unintegrated hard scattering coefficient for unpolarized gluon-induced deep inelastic scattering using the logical framework of parton correlation functions developed in previous work. In our approach, exact four-momentum conservation is maintained throughout the calculation. Hence, all non-perturbative functions, like parton distribution functions, depend on all components of parton four-momentum. In contrast to the usual collinear factorization approach where the hard scattering coefficient involves generalized functions (such as Dirac -functions), the fully unintegrated hard scattering coefficient is an ordinary function. Gluon-induced deep inelastic scattering provides a simple illustration of the application of the fully unintegrated factorization formalism with a non-trivial hard scattering coefficient, applied to a phenomenologically interesting case. Furthermore, the gluon-induced process allows for a parameterization of the fully unintegrated gluon distribution function.
22 pages, Typos Fixed, Reference Added, Minor Clarification Added
References in corpus (20)
- JaxoDraw: A graphical user interface for drawing Feynman diagrams
- Final state interactions and gauge invariant parton distributions
- Universality of soft and collinear factors in hard-scattering factorization
- Unintegrated parton distributions and inclusive jet production at HERA
- k_T factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions
- Hadronic final state predictions from CCFM: the hadron-level Monte Carlo generator CASCADE
- Transverse momentum dependent parton distributions in a light-cone quark model
- Fully Unintegrated Parton Correlation Functions and Factorization in Lowest Order Hard Scattering
- Unintegrated parton distributions and electroweak boson production at hadron colliders
- The CCFM Monte Carlo generator CASCADE
- Wilson lines and transverse-momentum dependent parton distribution functions: A renormalization-group analysis
- Renormalization, Wilson lines, and transverse-momentum dependent parton distribution functions
- Endpoint singularities in unintegrated parton distributions
- Non-universality of transverse momentum dependent parton distribution functions
- Collinear factorization for deep inelastic scattering structure functions at large Bjorken xB
- A model of non-perturbative gluon emission in an initial state parton shower
- Parton distribution function for quarks in an s-channel approach
- The Gluon Distribution Function and Factorization in Feynman Gauge
- Monte-Carlo Event Generators at NLO
- Initial State Parton Showers Beyond Leading Order
Cited by in corpus (17)
- Generalized parton correlation functions for a spin-1/2 hadron
- Generalized parton correlation functions for a spin-0 hadron
- The Quark Beam Function at Two Loops
- Forward Jet Production at the Large Hadron Collider
- Relating Transverse Momentum Dependent and Collinear Factorization Theorems in a Generalized Formalism
- Fully-Unintegrated Parton Distribution and Fragmentation Functions at Perturbative k_T
- An Overview of Transverse Momentum Dependent Factorization and Evolution
- Angular correlations in multi-jet final states from kt-dependent parton showers
- Lorentz invariance relations between parton distributions and the Wandzura-Wilczek approximation
- The Fully-Differential Quark Beam Function at NNLO
- Collinear expansion for color singlet cross sections
- N-jettiness Subtractions for NNLO QCD Calculations
- Jet correlations from unintegrated parton distributions
- The Fully-Differential Gluon Beam Function at NNLO
- Dijet azimuthal distributions and initial-state parton showers
- Phenomenology of Jet Production in Forward Direction at High Energy Hadron Colliders
- QCD Beyond Leading Power