Evolution equations for extended dihadron fragmentation functions

Abstract

We consider dihadron fragmentation functions, describing the fragmentation of a parton in two unpolarized hadrons, and in particular extended dihadron fragmentation functions, explicitly dependent on the invariant mass, $M_h$, of the hadron pair. We first rederive the known results on $M_h$-integrated functions using Jet Calculus techniques, and then we present the evolution equations for extended dihadron fragmentation functions. Our results are relevant for the analysis of experimental measurements of two-particle-inclusive processes at different energies.

9 pages, 1 figure in eps format; RevTeX4 style

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• First extraction of Interference Fragmentation Functions from e+e- data
• Evidence for a Transverse Single-Spin Asymmetry in Leptoproduction of pi+pi- Pairs
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• Leading jets and energy loss
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• Dihadron fragmentation functions in the quark-jet model: Transversely polarized quarks
• Probing hadronization with flavor correlations of leading particles in jets
• Realistic estimate of valence transversity distributions from inclusive dihadron production
• Dihadron Fragmentation Functions from the NJL-jet model and their QCD Evolution
• Double spin asymmetry in dihadron production in SIDIS off the longitudinally polarized nucleon target
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• Single spin asymmetry $A_{UL}^{\sin ({\varphi }_h-{\varphi }_R)}$ in dihadron semi-inclusive DIS
• Dihadron fragmentation framework for near-side energy-energy correlators
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• The cos${\varphi }_R$ asymmetry of dihadron production in double longitudinally polarized SIDIS
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• Dihadron Angular Correlations in the $e^{+}{e}^{-}$ Collision
• The hadron pair forward-backward asymmetry in the electron positron annihilation process