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Open AccessJournal ArticleDOI

Polarized deep inelastic diffractive ep scattering: Operator approach

Johannes Blümlein, +1 more
- 16 Apr 2002 - 
- Vol. 65, Iss: 9, pp 096002
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TLDR
In this article, a quantum field theoretic approach for polarized inclusive deep-inelastic diffractive scattering is presented, where the diffractive parton distributions are derived from pseudoscalar two-variable operator expectation values.
Abstract
Polarized inclusive deep-inelastic diffractive scattering is dealt with in a quantum field theoretic approach. The process can be described in the general framework of nonforward scattering processes using the light-cone expansion in the generalized Bjorken region applying the generalized optical theorem. The diffractive structure functions ${g}_{1}^{D(3)}$ and ${g}_{2}^{D(3)}$ are calculated in the twist-2 approximation and are expressed by diffractive parton distributions, which are derived from pseudoscalar two-variable operator expectation values. In this approximation the structure function ${g}_{2}^{D(3)}$ is obtained from ${g}_{1}^{D(3)}$ by a Wandzura-Wilczek relation similar as for deep inelastic scattering. The evolution equations are given. We also comment on the higher twist contributions in the light-cone expansion.

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Journal ArticleDOI

Measurement and QCD analysis of the diffractive deep-inelastic scattering cross-section at HERA

A. Aktas, +296 more
TL;DR: In this article, a detailed analysis of the diffractive deep-inelastic scattering process is presented, where the cross section is measured for photon virtualities in the range $3.5 \leq Q^2 \leqs 1600 \rm GeV^2, triple differentially in $\xpom$, $Q^2$ and $\beta = x / \xpom", where x$ is the Bjorken scaling variable.
Journal ArticleDOI

QCD Analysis of Polarized Deep Inelastic Scattering Data

TL;DR: In this paper, a QCD analysis of the world data on polarized deep inelastic scattering is presented in next-to-leading order, including the heavy flavor Wilson coefficient in leading order in the fixed flavor number scheme.
Journal ArticleDOI

Collider physics at HERA

TL;DR: The HERA collider as discussed by the authors operated at cms energies of about 320 GeV and allowed the investigation of deep-inelastic and photoproduction processes at the highest energy scales accessed thus far.
Journal ArticleDOI

The complete O(αs2) non-singlet heavy flavor corrections to the structure functions g1,2ep(x,Q2), F1,2,Lep(x,Q2), F1,2,3ν(ν¯)(x,Q2) and the associated sum rules

TL;DR: In this article, the authors analyzed the flavor non-singlet O(α s 2 ) massive Wilson coefficients for the inclusive neutral current nonsinglet structure functions F 1, 2, L e p ( x, Q 2 ) and g 1,2 e p( x, Q 2 ), at general virtualities Q 2 in the deepinelastic region.
Journal ArticleDOI

The 3-loop non-singlet heavy flavor contributions to the structure function g1(x,Q2) at large momentum transfer

TL;DR: In this article, the massive flavor non-singlet Wilson coefficient for the heavy flavor contributions to the polarized structure function g1(x,Q2) in the asymptotic region Q2≫m2 to 3-loop order in Quantum Chromodynamics at general values of the Mellin variable N and the momentum fraction x, and derive heavy flavor corrections to the Bjorken sum-rule.
References
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Book

An introduction to Regge theory and high-energy physics

P. Collins
TL;DR: The theory of the complex angular momentum plane (Regge theory) as discussed by the authors was proposed by Regge in the early 1970s to explain the forces between these particles and predict the results of high-energy scattering experiments.

An Introduction to Regge Theory and High Energy Physics

P. Collins
TL;DR: The theory of the complex angular momentum plane (Regge theory) as discussed by the authors was proposed by Regge in the early 1970s for non-relativistic potential scattering and has been used to classify the many different particles which have been discovered in recent years, to explain the forces between these particles and to predict the results of high-energy scattering experiments.
Book

Field theory in particle physics

B. de Wit, +1 more
TL;DR: In this paper, the authors present the Feynman diagrams for spinless fields and cross sections and decay rates of fermions with spin one-half and spin one half.
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