activity
19972003
collaborators

8 papers

hep-th2003

Complementarity between Gauge-Boson Compositeness and Asymptotic Freedom -- with scalar matter

Keiichi Akama, Takashi Hattori

We derive and solve the compositeness condition for the SU(N_c) gauge boson coupling with N_s scalar fields at the next-to-leading order in 1/N_s and the leading order in ln(Λ^2) (…

hep-th2003

Brane Induced Gravity from its Dynamical Origin

Keiichi Akama

We develop a quantum theoretical formalism to derive the brane gravity from its origin -- brane-generating dynamics in higher dimensions. Based on it, we discuss characteristic pro…

hep-ph2003

Probabilistic Naturalness Measure for Dipole Moments due to New Physics

Keiichi Akama, Takashi Hattori, Kazuo Katsuura

We introduce a probabilistic measure of naturalness (naturalness level) to fix naturalness bounds quantitatively. It is applied to the anomalous magnetic moments and the electric d…

hep-th2000

Unified Field Theory Induced on the Brane World

Keiichi Akama

We show how the gravity, gauge, and matter fields are induced on dynamically localized brane world.

hep-th2000

Induced Field Theory on the Brane World

Keiichi Akama

We show how the gravity, gauge, and matter fields are induced on dynamically localized brane world (domain wall, vortex etc.). Solitonic solutions localized on a curved brane in ce…

hep-ph1998

A Dynamical Origin of the Mass Hierarchy among Neutrinos, Charged Leptons, and Quarks

Keiichi Akama, Kazuo Katsuura

We propose a dynamical mass-generation scenario which naturally realizes the mass hierarchy among the neutrinos, charged leptons and quarks, where the mass is dominated by the self…