360 citations · 6.1k across the 180 of their papers we have counts for
8 papers · 1 filter
J/psi Production vs Transverse Momentum and Rapidity in p+p Collisions at sqrt(s) = 200 GeV
PHENIX Collaboration, A. Adare
J/Psi production in p+p collisions at sqrt(s) = 200 GeV has been Measured in the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) over a rapidity range of -2.2 < y <…
Quark condensates in the chiral bag with the NJL interaction
S. Yasui, A. Hosaka, M. Oka
We discuss the quark condensate of the vacuum inside the baryon. We analyze the 1+1 dimensional chiral bag in analogy with the realistic 3+1 dimensional one. The Nambu--Jona-Lasini…
Dynamics of Multiquark Systems: Mass, Width and Exotics
Makoto Oka
Exotic multi-quark states are examined in the quark model and in QCD. Current status of theoretical studies of the pentaquark Theta^+ is reported. We show recent analyses of multi-…
Measurement of high-p_T Single Electrons from Heavy-Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV
PHENIX Collaboration, A. Adare
The momentum distribution of electrons from decays of heavy flavor (charm and beauty) for midrapidity |y| < 0.35 in p+p collisions at sqrt(s) = 200 GeV has been measured by the PHE…
Possible Ferromagnetism in the Large N(c) and N(f) limit of quark matter
Kazuaki Ohnishi, Makoto Oka, Shigehiro Yasui
We consider high density quark matter in the large and limit with fixed. In this limit, the color superconductivity disappears. We discuss that the chiral…
Scaling properties of azimuthal anisotropy in Au+Au and Cu+Cu collisions at sqrt(s_NN) = 200 GeV
PHENIX Collaboration, A. Adare
Detailed differential measurements of the elliptic flow for particles produced in Au+Au and Cu+Cu collisions at sqrt(s_NN) = 200 GeV are presented. Predictions from perfect fluid h…
Scalar-Meson - Baryon Coupling Constants in QCD Sum Rules
G. Erkol, M. Oka, Th. A. Rijken +1
The external-field QCD Sum Rules method is used to evaluate the coupling constants of the light-isoscalar scalar meson (``σ'' or ε) to the Λ, Σ, and Ξbaryons. It is shown that thes…
Anisotropic lattice QCD studies of penta-quarks and tetra-quarks
N. Ishii, T. Doi, H. Iida +4
Anisotropic lattice QCD studies of penta-quarks(5Q) with J^P=1/2^\pm and 3/2^{\pm} are presented at the quenched level together with tetra-quarks(4Q). The standard gauge action at…