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Light flavor-singlet scalars and walking signals in QCD on the lattice
Yasumichi Aoki, Tatsumi Aoyama, Ed Bennett +9
Based on the highly improved staggered quark action, we perform lattice simulations of QCD and confirm our previous observation of a flavor-singlet scalar meson (denoted as…
Dark Side of the Standard Model: Dormant New Physics Awaken
Shinya Matsuzaki, Hiroshi Ohki, Koichi Yamawaki
We find that the nonperturbative physics of the standard-model Higgs Lagrangian provides a dark matter candidate, "dormant skyrmion in the standard model", the same type of the sky…
S-parameter and vector decay constant in QCD with eight fundamental fermions
LatKMI collaboration, Yasumichi Aoki, Tatsumi Aoyama +10
SU(3) gauge theory with eight massless fundamental fermions seems to be near the conformal boundary, and is a candidate theory of walking technicolor. Along the series of study by…
Topological observables in many-flavour QCD
Yasumichi Aoki, Tatsumi Aoyama, Ed Bennett +9
SU(3) gauge theory with eight massless flavours is believed to be walking, while the corresponding twelve- and four-flavour appear IR-conformal and confining respectively. Looking…
Walking and conformal dynamics in many-flavor QCD
Yasumichi Aoki, Tatsumi Aoyama, Ed Bennett +9
In the search for a realistic walking technicolor model, QCD with many flavors is an attractive candidate. From the series of studies by the LatKMI collaboration, we present update…