2 papers
hep-th2024
Modular forms and hierarchical Yukawa couplings in heterotic Calabi-Yau compactifications
Keiya Ishiguro, Tatsuo Kobayashi, Satsuki Nishimura +1
We study the modular symmetry in heterotic string theory on Calabi-Yau threefolds. In particular, we examine whether moduli-dependent holomorphic Yukawa couplings are described by…
hep-ph2023
Novel moduli space in modular flavor models : a case study for modular seesaw model with hidden gauge symmetry
Keiya Ishiguro, Takaaki Nomura, Hiroshi Okada +2
We study flavor phenomenologies in a basis of a double covering of modular group with a hidden symmetry, in which we work on regions at nearby two fixed points and th…