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6 papers · 2 filters
Operator product expansion for B-meson distribution amplitude and dimension-5 HQET operators
Hiroyuki Kawamura, Kazuhiro Tanaka
When the bilocal heavy-quark effective theory (HQET) operator for the B-meson distribution amplitude has a light-like distance t between the quark and antiquark fields, the scale \…
Universal Rise of Hadronic Total Cross Sections based on Forward pi p and pbarp(pp) Scatterings
Muneyuki Ishida, Keiji Igi
Recently there are several evidences of the increase of the total cross section sigma(tot) to be log2 s consistent with the Froissart unitarity bound, and the COMPETE collaboration…
Dynamical Electroweak Symmetry Breaking in SO(5)xU(1) Gauge-Higgs Unification with Top and Bottom Quarks
Y. Hosotani, K. Oda, T. Ohnuma +1
An SO(5)xU(1) gauge-Higgs unification model in the Randall-Sundrum warped space with top and bottom quarks is constructed. Additional fermions on the Planck brane make exotic parti…
Next-to-leading order QCD corrections to spin-dependent hadron-pair photoproduction
Christof Hendlmeier, Andreas Schafer, Marco Stratmann
We compute the next-to-leading order QCD corrections to the ``direct'' part of the spin-dependent cross section for hadron-pair photoproduction. The calculation is performed using…
Double-spin asymmetries for small-Q_T Drell-Yan pair production in transversely polarized p\bar{p} collisions
Hiroyuki Kawamura, Jiro Kodaira, Kazuhiro Tanaka
We discuss the Drell-Yan process at a measured transverse-momentum of the produced lepton pair in collisions of transversely polarized protons and antiprotons, to be observed…
The OPE of the B-meson light-cone wavefunction for exclusive B decays: radiative corrections and higher-dimensional operators
Hiroyuki Kawamura, Jiro Kodaira, Kazuhiro Tanaka
We discuss the B-meson light-cone wavefunction relevant for QCD factorization approach for exclusive B-meson decays. We derive the operator product expansion for the B-meson light-…