477 citations · 4.7k across the 99 of their papers we have counts for
5 papers · 1 filter
Electroweak-Skyrmion as Asymmetric Dark Matter
Yu Hamada, Ryuichiro Kitano, Masafumi Kurachi
We propose a scenario that the Electroweak-Skyrmion, a solitonic object made of the Higgs field and the electroweak gauge fields, is identified as an asymmetric dark matter. In thi…
Strong CP problem and axion dark matter with small instantons
Ryuichiro Kitano, Wen Yin
The axion mass receives a large correction from small instantons if the QCD gets strongly coupled at high energies. We discuss the size of the new CP violating phases caused by the…
Missing final state puzzle in the monopole-fermion scattering
Ryuichiro Kitano, Ryutaro Matsudo
It has been known that when a charged fermion scatters off a monopole, the fermion in the -wave component must flip its chirality, i.e., fermion number violation must happen. Th…
Stochastic computation of in QED
Ryuichiro Kitano, Hiromasa Takaura, Shoji Hashimoto
We perform a numerical computation of the anomalous magnetic moment () of the electron in QED by using the stochastic perturbation theory. Formulating QED on the lattice, we d…
Peeking into the vacuum
Ryuichiro Kitano, Ryutaro Matsudo, Norikazu Yamada +1
We propose a subvolume method to study the dependence of the free energy density of the four-dimensional SU() Yang-Mills theory on the lattice. As an attempt, the method is…