Shandong University

Showing 2002 · hep-phShow all

8 papers · 2 filters

hep-ph2002★ 15 cited

Evolution of Parton Fragmentation Functions at Finite Temperature

Jonathan A. Osborne, Enke Wang, Xin-Nian Wang

The first order correction to the parton fragmentation functions in a thermal medium is derived in the leading logarithmic approximation in the framework of thermal field theory. T…

hep-ph2002★ 5 cited

Spin alignments of vector mesons in deeply inelastic lepton-nucleon scattering

Qing-hua Xu, Zuo-tang Liang

We extend the calculations of the spin alignments of vector mesons in $e^{+} e^{-}$ annihilation in a recent Rapid Communication to deeply inelastic lepton-nucleon scatterings. We prese…

hep-ph2002

Spin Effects in High Energy Fragmentation Processes

Zuo-tang Liang

Recent measurements, in particular those on $Λ$ polarization and spin alignment of vector mesons in $e^{+} e^{-}$ annihilation at LEP, and those on the azimuthal asymmetry at HERA, have…

hep-ph2002★ 2 cited

Hyperon polarization in e^-p --> e^-HK with polarized electron beams

Zuo-tang Liang, Qing-hua Xu

We apply the picture proposed in a recent Letter for transverse hyperon polarization in unpolarized hadron-hadron collisions to the exclusive process e^-p --> e^-HK such as e^-p-->…

hep-ph2002

Spin Alignment of Vector Meson in High Energy Reactions

Xu Qing-hua, Liu Chun-xiu, Liang Zuo-tang

The recent data on the polarization of vector meson at LEP show that the vector mesons favor the helicity zero state. We calculate the helicity density matrix of vector meson which…

hep-ph2002★ 17 cited

Hyperon polarization in ν_μcharged current interaction at the NOMAD energies

Zuo-tang Liang, Chun-xiu Liu

We show that, in $ν_{μ} N \to μ^{-} Λ X$ at the NOMAD energies, it is impossible to separate the products of the fragmentation of the struck quark from those of the nucleon remnant. The la…