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Dive into the research topics where Akio Sugamoto is active.

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Featured researches published by Akio Sugamoto.


Nuclear Physics | 1986

Commutator anomaly for the Gauss law constraint operator

Masaaki Kobayashi; Koichi Seo; Akio Sugamoto

Abstract A formula useful for evaluating the commutator anomaly for the Gauss law constraint operator is presented. This formula makes the perturbative calculation of the anomaly much simpler than previous attempts. Furthermore, the commutator anomaly is shown to be derived directly from the non-abelian chiral anomaly and the perturbative calculation is connected to the argument based on cohomology.


Physical Review D | 2000

B→ππ,Kπ decays in the QCD improved factorization approach

Taizo Muta; Akio Sugamoto; Mao-Zhi Yang; Ya-Dong Yang

Motivated by recent measurements, we investigate


European Physical Journal C | 2000

Production of scalar Higgs and pseudoscalar Higgs in multi-Higgs doublet models at \(\gamma\gamma\) colliders

Eri Asakawa; Jun-ichi Kamoshita; Akio Sugamoto; Isamu Watanabe

\stackrel{\ensuremath{\rightarrow}}{B}\ensuremath{\pi}\ensuremath{\pi},K\ensuremath{\pi}


Progress of Theoretical Physics | 1997

Implications of Baryon Asymmetry for the Electric Dipole Moment of the Neutron

Mayumi Aoki; Akio Sugamoto; Noriyuki Oshimo

decay modes in the framework of QCD improved factorization, which was recently proposed by Beneke et al. We find that all the measured branching ratios are well accommodated in the reasonable parameter space except for


Progress of Theoretical Physics | 2004

Pentaquark baryons in string theory

Masako Bando; Taichiro Kugo; Akio Sugamoto; Sachiko Terunuma

\stackrel{\ensuremath{\rightarrow}}{B}{K}^{0}{\ensuremath{\pi}}^{0}.


Physics Letters B | 1999

Axion-dilatonic conformal anomaly from AdS/CFT correspondence

Shin'ichi Nojiri; Sergei D. Odintsov; Sachiko Ogushi; Akio Sugamoto; Miho Yamamoto

We also discuss in detail the strong penguin contributions and the


Progress of Theoretical Physics | 2002

4d Gauge Theory and Gravity Generated from 3d Gauge Theory and Gravity at High Energy

Akio Sugamoto

\mathcal{O}({\ensuremath{\alpha}}_{s})


Modern Physics Letters A | 2002

Stabilization and radion in de Sitter brane world

Shin'ichi Nojiri; Sergei D. Odintsov; Akio Sugamoto

corrections to the chirally enhanced terms. We find that the weak phase


Progress of Theoretical Physics | 1997

Electroweak Baryogenesis from Chargino Transport in the Supersymmetric Model

Mayumi Aoki; Noriyuki Oshimo; Akio Sugamoto

\ensuremath{\gamma}


Physics Letters B | 1991

Topological four-dimensional Einstein gravity

Ichiro Oda; Akio Sugamoto

lies in the region

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Kentaro Somiya

Tokyo Institute of Technology

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