6 papers · 1 filter
The Drell-Levy-Yan Relation: ep vs Scattering to
J. Blümlein, V. Ravindran, W. L. van Neerven
We study the validity of a relation by Drell, Levy and Yan (DLY) connecting the deep inelastic structure (DIS) functions and the single-particle fragmentation functions in …
The Unpolarized Gluon Anomalous Dimension at Small x
J. Blümlein, V. Ravindran, W. L. van Neerven +1
We discuss the quantitative consequences of the resummation of the small-x contributions to the anomalous dimensions beyond next-to-leading order in alpha_s and up to next order in…
Relations among polarized and unpolarized splitting functions beyond leading order
J. Blümlein, V. Ravindran, W. L. van Neerven
The role of various symmetries in the evaluation of splitting functions and coefficient functions is discussed. The scale invariance in hard processes is known to be a guiding tool…
Collinear Divergences at One-loop Order for External Particles in a Heat-bath
Saumen Datta, Sourendu Gupta, V. Ravindran
In hard interactions between external particles incident on a heat-bath, we show that large logarithms are generated when a radiated or absorbed gauge boson is collinear with the i…
Photon Structure Functions: Target Photon Mass Effects and QCD Corrections
Prakash Mathews, V. Ravindran
We present a systematic analysis of the polarised and unpolarised processes in the deep inelastic limit and study the effects of target photon mas…
Gluon fragmentation function in polarised hyperon production: The Method of Factorisation
V. Ravindran
We discuss the polarised fragmentation functions of quarks and gluons in Perturbative Quantum Chromodynamics. The Altarelli-Parisi evolution equations governing these fragmentation…