635 citations · 6.2k across the 159 of their papers we have counts for
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A Closer Look at Constrained Instantons
Takafumi Aoki, Masahiro Ibe, Satoshi Shirai
Instantons play a crucial role in understanding non-perturbative dynamics in quantum field theories, including those with spontaneously broken gauge symmetries. In the broken phase…
Quintessence Axion Revisited in Light of Swampland Conjectures
Masahiro Ibe, Masahito Yamazaki, Tsutomu T. Yanagida
We point out that the swampland conjectures, forbidding the presence of global symmetries and (meta-)stable de Sitter vacua within quantum gravity, pick up a dynamical axion for th…
The swampland conjecture and the Higgs expectation value
Koichi Hamaguchi, Masahiro Ibe, Takeo Moroi
The recently proposed de Sitter swampland conjecture excludes local extrema of a scalar potential with a positive energy density in a low energy effective theory. Under the conject…
Anomaly Mediated Gaugino Mass and Path-Integral Measure
Keisuke Harigaya, Masahiro Ibe
In recent years, there have been controversy concerning the anomaly mediated gaugino mass in the superspace formalism of supergravity. In this paper, we reexamine the gaugino mass…
R-symmetry Matching In SUSY Breaking Models
Jessica Goodman, Masahiro Ibe, Yuri Shirman +1
Low energy descriptions of metastable supersymmetry breaking models often possess an accidental R-symmetry. Viable phenomenological applications of this class of models require R-s…
Conformal Supersymmetry Breaking and Dynamical Tuning of the Cosmological Constant
M. Ibe, Y. Nakayama, T. T. Yanagida
We propose "conformal supersymmetry breaking" models, which tightly relate the conformal breaking scale (i.e. R-symmetry breaking scale) and the supersymmetry breaking scale. The b…