570 citations
- High Energy Accelerator Research OrganizationJP38 papers
- Niigata UniversityJP18 papers
- Hiroshima UniversityJP12 papers
- Tohoku UniversityJP10 papers
- RIKENJP9 papers
- The University of TokyoJP9 papers
- Deutsches Elektronen-Synchrotron DESYDE8 papers
- Juntendo University HospitalJP8 papers
- Stony Brook UniversityUS8 papers
- Institute of Particle and Nuclear Studies6 papers
- Japan Proton Accelerator Research ComplexJP6 papers
- Nagoya UniversityJP6 papers
6 papers · 1 filter
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 \…
Determination of gluon polarization from deep inelastic scattering and collider data
M. Hirai, S. Kumano, Asymmetry Analysis Collaboration
We investigate impact of -production data at Relativistic Heavy Ion Collider (RHIC) and future E07-011 experiment for the structure function of the deuteron at the Thoma…
Double Transverse-Spin Asymmetries for Drell-Yan Process in pp and p\bar{p} Collisions: Role of Nonleading QCD Corrections at Small Transverse Momentum
Hiroyuki Kawamura, Kazuhiro Tanaka
We discuss the double-spin asymmetries in transversely polarized Drell-Yan process, calculating all-order gluon resummation corrections up to the next-to-leading logarithmic accura…
Drell-Yan double-spin asymmetry A_{LT} in polarized p\bar{p} collisions: Wandzura-Wilczek contribution
Yuji Koike, Kazuhiro Tanaka, Shinsuke Yoshida
The longitudinal-transverse spin asymmetry A_{LT} in the polarized Drell-Yan process depends on the twist-3 spin-dependent distributions of nucleon. In addition to the contribution…
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…
Determination of f_0(980) Structure by Fragmentation Functions
M. Hirai, S. Kumano, M. Oka +1
We discuss internal structure of an exotic hadron by using fragmentation functions. The fragmentation functions for the f_0(980) meson are obtained by a global analysis of e^++e^-…