Higher twist contribution to fragmentation function in inclusive hadron production in e^+e^- annihilation

Abstract

We apply collinear expansion to inclusive hadron production in $e^{+}{e}^{-}$ annihilation and derive a formalism suitable for systematic study of leading as well as higher twist contributions to fragmentation functions at the tree level. We make the calculations for hadrons with spin-0, spin-1/2 as well as spin-1 and obtain the results in terms of different components of fragmentation functions for the hadronic tensors, the differential cross section as well as hadron polarizations in different cases. The results show a number of interesting features such as the existence of transverse polarization for spin-1/2 hadrons at the twist-3 level, the quark polarization independence of the spin alignment of vector mesons.

version to appear in PRD, 36 pages, 2 figures

References in corpus (7)

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Cited by in corpus (17)

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• Tensor polarization dependent fragmentation functions and e+e-\to V πX at high energies
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• Energy dependence of hadron polarization in $e^{+}{e}^{-}\to hX$ at high energies
• Longitudinal and transverse polarizations of $\Lambda$ hyperon in unpolarized SIDIS and $e^{+}{e}^{-}$ annihilation
• The Spin Alignment of Vector Mesons in High Energy pp Collisions
• Twist-4 contributions to semi-inclusive $e^{+}{e}^{-}$-annihilation process
• Several Topics on Transverse Momentum-Dependent Fragmentation Functions
• Parity violating semi-inclusive deeply inelastic scattering at the Electron-Ion Collider
• Inclusive and semi-inclusive production of spin-3/2 hadrons in $e^{+}{e}^{-}$ annihilation
• Spin Density Matrix for ${\Omega }^{-}$ and its Polarization Alignment in $\psi (3686)\to {\Omega }^{-}{\bar{\Omega }}^{+}$
• Three dimensional imaging of the nucleon --- TMD (theory and phenomenology)
• Polarized vector meson production in semi-inclusive DIS
• Transverse spin polarization as a novel probe of medium-induced transverse-momentum-broadening effect
• The forward-backward asymmetry in the electron positron annihilation process at twist-4
• Higher twist effects in $e^{+}{e}^{-}$ annihilation at high energies