91 citations · 1.4k across the 90 of their papers we have counts for
76 papers · 1 filter
Technically Natural Suppression of Fifth Force
Kensuke Homma, Taishi Katsuragawa, Shinya Matsuzaki
Light scalars generically mediate a fifth force incompatible with local tests of gravity unless their couplings are parametrically suppressed or screening mechanisms are introduced…
The effect of charm quark on the QCD chiral phase diagram
Fei Gao, Yuepeng Guan, Shinya Matsuzaki
We study the influence of charm-quark dynamics on the chiral phase structure of Quantum Chromodynamics (QCD) using the recently developed miniDSE scheme for the Dyson-Schwinger equ…
Dynamical realization of the small field inflation of Coleman-Weinberg type in the post supercooled universe
He-Xu Zhang, Hiroyuki Ishida, Shinya Matsuzaki
The small field inflation (SFI) of Coleman-Weinberg (CW) type suffers from precise tuning of the initial inflaton field value to be away from the true vacuum one. We propose a dyna…
Fate of the first-order chiral phase transition in QCD: Implications for dark QCD studied via a Nambu-Jona-Lasinio model
Yuanyuan Wang, Mamiya Kawaguchi, Shinya Matsuzaki +1
The first-order nature of the chiral phase transition in QCD-like theories can play crucial roles to address a dark side of the Universe, where the created out-of equilibrium is es…
QCD preheating: New frontier of baryogenesis
Xin-Ru Wang, Jin-Yang Li, Seishi Enomoto +2
We find that QCD can create the cosmological matter abundance via out-of-equilibrium processes during the QCD phase transition, that is what we call the QCD preheating, where the d…
New aspect of chiral and axial breaking in QCD
Chuan-Xin Cui, Mamiya Kawaguchi, Jin-Yang Li +2
Violation of the axial symmetry in QCD is stricter than the chiral breaking, simply because of the presence of the quantum axial anomaly. If the QCD gauge coupling i…
QCD knows new quarks
Chuan-Xin Cui, Hiroyuki Ishida, Mamiya Kawaguchi +3
We find that a big gap between indicators for the breaking strengths of the global chiral SU(2) and U(1) axial symmetries in QCD of the Standard Model (SM) can be interpreted as a…
Probing an intrinsically flavorful ALP via tau-lepton flavor physics
Chuan-Xin Cui, Hiroyuki Ishida, Shinya Matsuzaki +1
Any axionlike particle (ALP) intrinsically possesses flavorful couplings to the standard model (SM) fermions arising as a consequence of the right-handed flavor rotation within the…
Axial inverse magnetic catalysis
Yuanyuan Wang, Shinya Matsuzaki
We find that the inverse magnetic catalysis for axial symmetry (AIMC: axial inverse magnetic catalysis) can emerge around the chiral crossover regime in the thermomagnetic Q…
New interpretation of chiral phase transition: Violation of trilemma in QCD
Chuan-Xin Cui, Jin-Yang Li, Shinya Matsuzaki +2
We find that the chiral phase transition (chiral crossover) in QCD at physical point is triggered by big imbalance among three fundamental quantities essential for the QCD vacuum s…
Peccei-Quinn Symmetry Breaking via Asymptotically Safe Dynamical Scalegenesis: A Walking Axicolor and Axion
Hiroyuki Ishida, Shinya Matsuzaki, Xiao-Chang Peng
Pecci-Quinn (PQ) symmetry breaking by perturbative dynamics would suffer from a hierarchy problem, just like the electroweak symmetry breaking in the standard model. The dynamics o…
Detecting scale anomaly in chiral phase transition of QCD: new critical endpoint pinned down
Mamiya Kawaguchi, Shinya Matsuzaki, Akio Tomiya
Violation of scale symmetry, scale anomaly, being a radical concept in quantum field theory, is of importance to comprehend the vacuum structure of QCD, and should potentially cont…
Dark Confinement-Deconfinement Phase Transition: A Roadmap from Polyakov Loop Models to Gravitational Waves
Zhaofeng Kang, Shinya Matsuzaki, Jiang Zhu
We explore the confinement-deconfinement phase transition (PT) of the first order (FO) arising in pure Yang-Mills theory, based on Polyakov loop models (PLMs), in light of…
Dynamic scale anomalous transport in QCD with electromagnetic background
Mamiya Kawaguchi, Shinya Matsuzaki, Xu-Guang Huang
We discuss phenomenological implications of the anomalous transport induced by the scale anomaly in QCD coupled to an electromagnetic (EM) field, based on a dilaton effective theor…
New perspective in searching for axion-like particles from flavor physics
Hiroyuki Ishida, Shinya Matsuzaki, Yoshihiro Shigekami
We propose new perspective in searching for axion-like particles (ALPs) from quark and lepton flavor physics: measurements of the time-dependent CP asymmetry in $B^0 \to K_S^0 π^0…
Analysis on nonperturbative flavor violation at chiral crossover criticality in QCD
Mamiya Kawaguchi, Shinya Matsuzaki, Akio Tomiya
We discuss the violation of quark-flavor symmetry at high temperatures, induced from nonperturbative thermal loop corrections and axial anomaly, based on a three-flavor linear-sigm…
Nonperturbative Flavor Breaking in Topological Susceptibility at Chiral Crossover
Mamiya Kawaguchi, Shinya Matsuzaki, Akio Tomiya
We demonstrate that the QCD topological susceptibility nonperturbatively gets a significant contribution signaled by flavor-nonuniversal quark condensates at around the pseudo-crit…
A Walking Dilaton Inflation
Hiroyuki Ishida, Shinya Matsuzaki
We propose an inflationary scenario based on a many-flavor hidden QCD with eight flavors, which realizes the almost scale-invariant (walking) gauge dynamics. The theory predicts tw…
Inverse Mass Hierarchy of Light Scalar Mesons Driven by Anomaly-Induced Flavor Breaking
Yoshiki Kuroda, Masayasu Harada, Shinya Matsuzaki +1
We propose a novel mechanism to reproduce the observed mass hierarchy for the scalar mesons lighter than 1 GeV (called the inverse hierarchy) regarding them as mesons made of a qua…
Big Bang Nucleosynthesis Hunts Chameleon Dark Matter
Hua Chen, Taishi Katsuragawa, Shinya Matsuzaki +1
We study the chameleon field dark matter, dubbed \textit{scalaron}, in gravity in the Big Bang Nucleosynthesis (BBN) epoch. With an -correction term required to solve…
Unified Interpretation of Scalegenesis in Conformally Extended Standard Models
Hiroyuki Ishida, Shinya Matsuzaki, Ruiwen Ouyang
We present a universal interpretation for a class of conformal extended standard models including Higgs portal interactions realized in low-energy effective theories. The scale gen…
Simultaneous explanation of and anomalies in vectorlike compositeness
Shinya Matsuzaki, Kenji Nishiwaki, Kei Yamamoto
We address the presently reported significant flavor anomalies in the and meson systems such as the CP violating Kaon decay () and lepton-flavor universality violatio…
Enhanced diHiggs signal from hidden scalar QCD at leading-order scale-symmetry limit
Ruiwen Ouyang, Shinya Matsuzaki
We develop an effective-model description arising from a recently proposed scale-invariant hidden scalar-QCD, which has been used to explain the dynamical origin of the electroweak…
Simultaneous interpretation of and anomalies in terms of chiral-flavorful vectors
Shinya Matsuzaki, Kenji Nishiwaki, Kei Yamamoto
We address the presently reported significant flavor anomalies in the Kaon and meson systems such as the CP violating Kaon decay () and lepton-flavor universality violati…