115 citations · 1.1k across the 34 of their papers we have counts for
34 papers
phase structure of QCD from functional renormalization group
Yuepeng Guan, Shinya Matsuzaki, Masatoshi Yamada
We study the low-energy properties of QCD-like theories in the presence of a -odd and axial breaking four-fermion operator $\left( \barψ ψ\right) \left( \barψ i γ_5 ψ\rig…
On the phase structure of extra-dimensional gauge theories with fermions
Álvaro Pastor-Gutiérrez, Masatoshi Yamada
We study the phase structure of five-dimensional Yang-Mills theories coupled to Dirac fermions. In order to tackle their non-perturbative character, we derive the flow equations fo…
Scaling solutions for asymptotically free quantum gravity
Saswato Sen, Christof Wetterich, Masatoshi Yamada
We compute scaling solutions of functional flow equations for quantum gravity in a general truncation with up to four derivatives of the metric. They connect the asymptotically fre…
UV completion of extradimensional Yang-Mills theory for Gauge-Higgs unification
Álvaro Pastor-Gutiérrez, Masatoshi Yamada
The Yang-Mills theory in spacetime is studied as a simple toy model of Gauge-Higgs unification. The theory is perturbatively nonrenormalizable but c…
Coleman-Weinberg Abrikosov-Nielsen-Olesen strings
Minoru Eto, Yu Hamada, Ryusuke Jinno +2
We study properties of Abrikosov-Nielsen-Olesen (ANO) strings with the Coleman-Weinberg (CW) potential, which we call CW-ANO strings. While the scale-invariant scalar potential has…
Determining wave equations in holographic QCD from Wilsonian renormalization group
Fei Gao, Masatoshi Yamada
We show a possible way to build the AdS/CFT correspondence starting from the quantum field theory side based on renormalization group approach. An extra dimension is naturally intr…
Asymptotic freedom and safety in quantum gravity
Saswato Sen, Christof Wetterich, Masatoshi Yamada
We compute non-perturbative flow equations for the couplings of quantum gravity in fourth order of a derivative expansion. The gauge invariant functional flow equation for arbitrar…
Higgs scalar potential coupled to gravity in the exponential parametrization in arbitrary gauge
Nobuyoshi Ohta, Masatoshi Yamada
We study the parametrization and gauge dependences in the Higgs field coupled to gravity in the context of asymptotic safety. We use the exponential parametrization to derive the f…
Universal gravitational-wave signatures from heavy new physics in the electroweak sector
Astrid Eichhorn, Johannes Lumma, Jan M. Pawlowski +2
We calculate the gravitational-wave spectra produced by the electroweak phase transition with TeV-scale Beyond-Standard-Model physics in the early universe. Our study captures the…
Gravitational instantons and anomalous chiral symmetry breaking
Yu Hamada, Jan M. Pawlowski, Masatoshi Yamada
We study anomalous chiral symmetry breaking in two-flavour QCD induced by gravitational and QCD-instantons within asymptotically safe gravity within the functional renormalisation…
Gauge hierarchy problem and scalegenesis
Masatoshi Yamada
We review the gauge hierarchy problem in the standard model. We discuss the meaning of the quadratic divergence in terms of the Wilsonian renormalization group. Classical scale sym…
Dynamically emergent gravity from hidden local Lorentz symmetry
Shinya Matsuzaki, Shota Miyawaki, Kin-ya Oda +1
Gravity can be regarded as a consequence of local Lorentz (LL) symmetry, which is essential in defining a spinor field in curved spacetime. The gravitational action may admit a zer…
Scalegenesis and fermionic dark matters in the flatland scenario
Yu Hamada, Koji Tsumura, Masatoshi Yamada
We propose an extension of the standard model with Majorana-type fermionic dark matters based on the flatland scenario where all scalar coupling constants, including scalar mass te…
Partial bosonisation for the two-dimensional Hubbard model: How well does it work?
Tobias Denz, Mario Mitter, Jan M. Pawlowski +2
Partial bosonisation of the two-dimensional Hubbard model focuses the functional renormalisation flow on channels in which interactions become strong and local order sets in. We co…
Variable Planck mass from the gauge invariant flow equation
Christof Wetterich, Masatoshi Yamada
Using the gauge invariant flow equation for quantum gravity we compute how the strength of gravity depends on the length or energy scale. The fixed point value of the scale-depende…
On the impact of Majorana masses in gravity-matter systems
Gustavo P. de Brito, Yuta Hamada, Antonio D. Pereira +1
We investigate the Higgs-Yukawa system with Majorana masses of a fermion within asymptotically safe quantum gravity. Using the functional renormalization group method we derive the…
Higgs scalar potential in asymptotically safe quantum gravity
Jan M. Pawlowski, Manuel Reichert, Christof Wetterich +1
The effect of gravitational fluctuations on the quantum effective potential for scalar fields is a key ingredient for predictions of the mass of the Higgs boson, understanding the…
Planck mass and inflation as consequences of dynamically broken scale invariance
Jisuke Kubo, Manfred Lindner, Kai Schmitz +1
Classical scale invariance represents a promising framework for model building beyond the Standard Model. However, once coupled to gravity, any scale-invariant microscopic model re…
Scale and confinement phase transitions in scale invariant scalar gauge theory
Jisuke Kubo, Masatoshi Yamada
We consider scalegenesis, spontaneous scale symmetry breaking, by the scalar-bilinear condensation in scalar gauge theory. In an effective field theory approach to the scal…
Asymptotic safety and field parametrization dependence in the f(R) truncation
Gustavo P. de Brito, Nobuyoshi Ohta, Antonio D. Pereira +2
We study the dependence on field parametrization of the functional renormalization group equation in the truncation for the effective average action. We perform a systematic…
Non-perturbative electroweak-scalegenesis on the test bench of dark matter detection
Jisuke Kubo, Qidir Maulana Binu Soesanto, Masatoshi Yamada
We revisit a recently proposed scale invariant extension of the standard model, in which the scalar bi-linear condensate in a strongly interacting hidden sector dynamically breaks…
Quantum gravity fluctuations flatten the Planck-scale Higgs potential
Astrid Eichhorn, Yuta Hamada, Johannes Lumma +1
We investigate asymptotic safety of a toy model of a singlet-scalar extension of the Higgs sector including two real scalar fields under the impact of quantum-gravity fluctuations.…
Phase structure of NJL model with weak renormalization group
Ken-Ichi Aoki, Shin-Ichiro Kumamoto, Masatoshi Yamada
We analyze the chiral phase structure of the Nambu--Jona-Lasinio model at finite temperature and density by using the functional renormalization group (FRG). The renormalization gr…
Gravitational wave from dark sector with dark pion
Koji Tsumura, Masatoshi Yamada, Yuya Yamaguchi
In this work, we investigate the spectra of gravitational waves produced by chiral symmetry breaking in dark quantum chromodynamics (dQCD) sector. The dark pion () can be a dark…