134 citations · 332 across the 6 of their papers we have counts for
6 papers
(Non-)Abelian discrete anomalies
Takeshi Araki, Tatsuo Kobayashi, Jisuke Kubo +3
We derive anomaly constraints for Abelian and non-Abelian discrete symmetries using the path integral approach. We survey anomalies of discrete symmetries in heterotic orbifolds an…
Soft supersymmetry breaking terms from D4 x Z2 lepton flavor symmetry
Hajime Ishimori, Tatsuo Kobayashi, Hiroshi Ohki +3
We study the supersymmetric model with lepton flavor symmetry. We evaluate soft supersymmetry breaking terms, i.e. soft slepton masses and A-terms, which are predi…
D4 Flavor Symmetry for Neutrino Masses and Mixing
Hajime Ishimori, Tatsuo Kobayashi, Hiroshi Ohki +3
We present the flavor symmetry, which is different from the previous work by Grimus and Lavoura. Our model reduces to the standard model in the low energy and there…
Metastable supersymmetry breaking vacua from conformal dynamics
Hiroyuki Abe, Tatsuo Kobayashi, Yuji Omura
We study the scenario that conformal dynamics leads to metastable supersymmetry breaking vacua. At a high energy scale, the superpotential is not R-symmetric, and has a supersymmet…
Higher Order Couplings from Heterotic Orbifold Theory
Kang-Sin Choi, Tatsuo Kobayashi
We calculate couplings of arbitrary order from correlation functions among twisted strings, using conformal field theory. Twisted strings arise in heterotic string compactified on…
Prospects for the direct detection of neutralino dark matter in orbifold scenarios
D. G. Cerdeno, T. Kobayashi, C. Munoz
We analyse the phenomenology of orbifold scenarios from the heterotic superstring, and the resulting theoretical predictions for the direct detection of neutralino dark matter. In…