Y. Abe

collaborators

3 papers

hep-th2020

Perturbative $S$ -matrix unitarity ( $S^{†} S = 1$ ) in $R_{μν}^{2}$ gravity

Yugo Abe, Takeo Inami, Keisuke Izumi

We show that in the quadratic curvature theory of gravity, or simply $R_{μν}^{2}$ gravity, the tree-level unitariy bound (tree unitarity) is violated in the UV region but an analog…

hep-ph2018

Left-right symmetry, orbifold $S^{1} / Z_{2}$ , and radiative breaking of $U (1)_{R} \times U (1)_{B - L}$

Yugo Abe, Yuhei Goto, Yoshiharu Kawamura

We study the origin of electroweak symmetry under the assumption that $S U (4)_{C} \times S U (2)_{L} \times S U (2)_{R}$ is realized on a five-dimensional space-time. The Pa…

hep-th2018

S-matrix Unitarity and Renormalizability in Higher Derivative Theories

Yugo Abe, Takeo Inami, Keisuke Izumi +2

We investigate the relation between the $S$ -matrix unitarity ( $S S^{†} = 1$ ) and the renormalizability, in theories with negative norm states. The relation has been confirmed in…

Perturbative S-matrix unitarity (S†S=1) in Rμν2​ gravity

Left-right symmetry, orbifold S1/Z2​, and radiative breaking of U(1)R​×U(1)B−L​

S-matrix Unitarity and Renormalizability in Higher Derivative Theories

Perturbative $S$ -matrix unitarity ( $S^{†} S = 1$ ) in $R_{μν}^{2}$ gravity

Left-right symmetry, orbifold $S^{1} / Z_{2}$ , and radiative breaking of $U (1)_{R} \times U (1)_{B - L}$