T. Uematsu

collaborators

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13 papers · 1 filter

hep-ph2009★ 2 cited

Parton distributions in the virtual photon target up to NNLO in QCD

Takahiro Ueda, Ken Sasaki, Tsuneo Uematsu

Parton distributions in the virtual photon target are investigated in perturbative QCD up to the next-to-next-to-leading order (NNLO). In the case $Λ^{2} ≪ P^{2} ≪ Q^{2}$ , where $-Q^…

hep-ph2008★ 6 cited

Heavy Quark Effects in the Virtual Photon Structure Functions

Yoshio Kitadono, Ken Sasaki, Takahiro Ueda +1

We investigate the heavy quark mass effects in the virtual photon structure functions $F_{2}^{γ} (x, Q^{2}, P^{2})$ and $F_{L}^{γ} (x, Q^{2}, P^{2})$ in the framework of the mass-independent ren…

hep-ph2008★ 1 cited

NNLO QCD analysis of the virtual photon structure functions

Ken Sasaki, Takahiro Ueda, Yoshio Kitadono +1

The next-to-next-to-leading order (NNLO) QCD analysis is performed for the virtual photon structure functions which can be measured in the double-tag events in two-photon processes…

hep-ph2008

Virtual Photon Structure Functions to NNLO in QCD

Takahiro Ueda, Tsuneo Uematsu, Ken Sasaki

The unpolarized virtual photon structure functions $F_{2}^{γ} (x, Q^{2}, P^{2})$ and $F_{L}^{γ} (x, Q^{2}, P^{2})$ are investigated in perturbative QCD for the kinematical region $Λ^{2} ≪ P^{2} ≪ Q^{2}$ ,…

hep-ph2008★ 6 cited

Target Mass Corrections for the Virtual Photon Structure Functions to the Next-to-next-to-leading Order in QCD

Yoshio Kitadono, Ken Sasaki, Takahiro Ueda +1

We investigate target mass effects in the unpolarized virtual photon structure functions $F_{2}^{γ} (x, Q^{2}, P^{2})$ and $F_{L}^{γ} (x, Q^{2}, P^{2})$ in perturbative QCD for the kinematical region $Λ…

hep-ph2007★ 11 cited

The Virtual Photon Structure to the Next-to-next-to-leading Order in QCD

T. Ueda, K. Sasaki, T. Uematsu

We investigate the unpolarized virtual photon structure functions $F_{2}^{g} amma (x, Q^{2}, P^{2})$ and $F_{L}^{g} amma (x, Q^{2}, P^{2})$ in perturbative QCD for the kinematical region $Lambda^2 ll P^2…