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14 papers · 1 filter
The qqbar S-wave axial-vector mesons in the covariant U~(12)-scheme
Tomohito Maeda, Kenji Yamada, Masuho Oda +1
We study the properties of axial vector mesons a1 and b1 as relativistic S-wave states which are predicted in the U~(12)-scheme, through the analyses of their radiative and pionic…
2n-Dimensional Models with Topological Mass Generation
Shinichi Deguchi, Satoshi Hayakawa
The 4-dimensional model with topological mass generation that has recently been presented by Dvali, Jackiw and Pi [G. Dvali, R. Jackiw, and S.-Y. Pi, Phys. Rev. Lett. 96, 081602 (2…
Adiabatic approximation in the second quantized formulation
Kazuo Fujikawa
Recently there have been some controversies about the criterion of the adiabatic approximation. It is shown that an approximate diagonalization of the effective Hamiltonian in the…
Laser-interferometric Detectors for Gravitational Wave Background at 100 MHz : Detector Design and Sensitivity
Atsushi Nishizawa, Seiji Kawamura, Tomotada Akutsu +8
Recently, observational searches for gravitational wave background (GWB) have developed and given direct and indirect constraints on the energy density of GWB in a broad range of f…
A Null Test of the Cosmological Constant
Takeshi Chiba, Takashi Nakamura
We provide a consistency relation between cosmological observables in general relativity with the cosmological constant. Breaking of this relation at any redshift would imply the b…
The basic K nuclear cluster K- pp and its enhanced formation in the p + p -> K+ + X reaction
Toshimitsu Yamazaki, Yoshinori Akaishi
We have studied the structure of K- pp nuclear cluster comprehensively by solving this three-body system exactly in a variational method starting from the Ansatz that the Lambda(14…