Results 31 to 40 of about 416,384 (162)
Angularity in DIS at next-to-next-to-leading log accuracy
Angularity is a class of event-shape observables that can be measured in deep-inelastic scattering. With its continuous parameter a one can interpolate angularity between thrust and broadening and further access beyond the region.
Jiawei Zhu, Daekyoung Kang, Tanmay Maji
doaj +1 more source
Transverse-energy-energy correlations in deep inelastic scattering
Event shape observables have been widely used for precision QCD studies at various lepton and hadron colliders. We present the most accurate calculation of the transverse-energy-energy correlation event shape variable in deep-inelastic scattering. In the
Hai Tao Li, Ivan Vitev, Yu Jiao Zhu
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Matching of fracture functions for SIDIS in target fragmentation region
In the target fragmentation region of Semi-Inclusive Deep Inelastic Scattering, the diffractively produced hadron has small transverse momentum. If it is at order of ΛQCD, it prevents to make predictions with the standard collinear factorization. However,
K.B. Chen, J.P. Ma, X.B. Tong
doaj +1 more source
Systematic analysis of double-scale evolution
Often the factorization of differential cross sections results in the definition of fundamental hadronic functions/distributions which have a double-scale evolution, as provided by a pair of coupled equations.
Ignazio Scimemi, Alexey Vladimirov
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We compute the differential yield for quark anti-quark dijet production in high-energy electron-proton and electron-nucleus collisions at small x as a function of the relative momentum P ⊥ and momentum imbalance k ⊥ of the dijet system for different ...
Renaud Boussarie+3 more
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J/ψ polarization in semi-inclusive DIS at low and high transverse momentum
We study the polar and azimuthal decay angular distributions of J/ψ mesons produced in semi-inclusive, deep-inelastic electron-proton scattering. For the description of the quarkonium formation mechanism, we adopt the framework of nonrelativistic QCD ...
Umberto D’Alesio+4 more
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Some of the experimental and theoretical results discussed at the Fifth International Workshop on Deep Inelastic Scattering and QCD are reviewed.
arxiv +1 more source
In this paper, we study the azimuthal asymmetry in the J/𝜓 leptoproduction in unpolarized ep collisions. There are two independent azimuthal asymmetry modulations, namely cos(𝜓) and cos (2 𝜓), where 𝜓 is the azimuthal angle of the lepton scattering plane
Hong-Fei Zhang+2 more
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Status of Polarized and Unpolarized Deep Inelastic Scattering [PDF]
The current status of deep inelastic scattering is briefly reviewed. We discuss future theoretical developments desired and measurements needed to further complete our understanding of the picture of nucleons at short distances.
arxiv +1 more source
Study of the sign change of the Sivers function from STAR collaboration W/Z production data
Recent data on the transverse single spin asymmetry A N measured by the STAR Collaboration for p ↑ p → W ± /Z 0 X reactions at RHIC allow the first investigation of the Sivers function in Drell-Yan processes and of its expected sign change with respect ...
M. Anselmino+4 more
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