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19922026
most citedObservation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays

2k citations

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47 papers · 1 filter

hep-th2024★ 2 cited

Closed string vertex operators with various ghost number

Isao Kishimoto, Mako Kouga, Shigenori Seki +1

We construct closed string vertex operators with various ghost numbers in addition to the conventional ones, using the Faddeev-Popov procedure for the gauge fixing of the conformal…

hep-th2022★ 9 cited

Modular symmetry anomaly and non-perturbative neutrino mass terms in magnetized orbifold models

Shota Kikuchi, Tatsuo Kobayashi, Kaito Nasu +2

We study the modular symmetry anomaly in magnetized orbifold models. The non-perturbative effects such as D-brane instanton effects can break tree-level symmetry. We study which pa…

hep-th2021★ 3 cited

The Veneziano Amplitude via Mostly BRST Exact Operator

Isao Kishimoto, Tomoko Sasaki, Shigenori Seki +1

The Veneziano amplitude is derived from fixing one degree of freedom of symmetry by the insertion of a mostly BRST exact operator. Evaluating the five-point fun…

hep-th2021★ 1 cited

Reduction of Open String Amplitudes by Mostly BRST Exact Operators

Shigenori Seki, Tomohiko Takahashi

We study two and three-point tree-level amplitudes of open strings. These amplitudes are reduced from higher-point correlation functions by using mostly BRST exact operators for ga…

hep-th2020★ 4 cited

Numerical twist-even SU(1,1)-singlet solutions in open string field theory around the identity-based solution

Isao Kishimoto, Tomohiko Takahashi

Using the level truncation method, we construct numerical solutions, which are twist even and SU(1,1) singlet, in the theory around the Takahashi-Tanimoto identity-based solution (…

hep-th2020★ 101 cited

Modular Flavor Symmetry on Magnetized Torus

Hiroshi Ohki, Shohei Uemura, Risa Watanabe

We study the modular invariance in magnetized torus models. Modular invariant flavor model is a recently proposed hypothesis for solving the flavor puzzle, where the flavor symmetr…