Dihadron fragmentation functions for large invariant mass

Details Dihadron fragmentation functions for large invariant mass Dihadron fragmentation functions for large invariant mass

2011-01-17

arxiv.org/abs/1101.3273v2

Phys.Rev.Lett.106:172001,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages; issue with layout fixed

Scientific paper

10.1103/PhysRevLett.106.172001

Using perturbative Quantum Chromodynamics, we compute dihadron fragmentation functions for a large invariant mass of the dihadron pair. The main focus is on the interference fragmentation function $H_1^{\open}$, which plays an important role in spin physics of the nucleon. Our calculation also reveals that $H_1^{\open}$ and the Collins fragmentation function have a closely related underlying dynamics. By considering semi-inclusive deep-inelastic scattering, we further show that collinear factorization in terms of dihadron fragmentation functions, and collinear factorization in terms of single hadron fragmentation functions provide the same result in the region of intermediate invariant mass.

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