Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Mamiya Kawaguchi"'
Publikováno v:
Particles, Vol 7, Iss 1, Pp 237-263 (2024)
The violation of the U(1) axial symmetry in QCD is stricter than the chiral SU(2) breaking simply because of the presence of the quantum axial anomaly. If the QCD gauge coupling is sent to zero (the asymptotic free limit, where the U(1) axial anomaly
Externí odkaz:
https://doaj.org/article/241b69c2de7b41e5bbd344227befe98a
Autor:
Mamiya Kawaguchi, Daiki Suenaga
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-36 (2023)
Abstract We explore the topological susceptibility at finite quark chemical potential and zero temperature in two-color QCD (QC2D) with two flavors. Through the Ward-Takahashi identities of QC2D, we find that the topological susceptibility in the vac
Externí odkaz:
https://doaj.org/article/53ad47a6f31b43aab6f8944c5285a466
Publikováno v:
Universe, Vol 10, Iss 2, p 68 (2024)
We find that a big gap between indicators for the breaking strengths of the global chiral SU(2) and U(1) axial symmetries in the QCD of the standard model (SM) can be interpreted as a new fine-tuning problem. This may thus imply calling for a class b
Externí odkaz:
https://doaj.org/article/41e24f47015245edac061b4988d23194
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 12, Pp 1-23 (2021)
Abstract 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 contribute to the chiral phase transition in thermal QCD, as well
Externí odkaz:
https://doaj.org/article/a3de0ccbca574c5a87550dde50c0c291
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 10, Pp 1-31 (2020)
Abstract 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 theory. The scale anomalous current emerges in a way perfectly ana
Externí odkaz:
https://doaj.org/article/8011603c58a440fab8b03e6aa6a126ff
Publikováno v:
Physics Letters B, Vol 813, Iss , Pp 136044- (2021)
We demonstrate that the QCD topological susceptibility nonperturbatively gets a significant contribution signaled by flavor-nonuniversal quark condensates at around the pseudo-critical temperature of the chiral crossover. It implies a remarkable flav
Externí odkaz:
https://doaj.org/article/c6cb0dc22de348eabc73430cf6b8c84a
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
Three-nucleon (3N) forces are an indispensable ingredient for accurate few-body and many-body nuclear structure and reaction theory calculations. While the direct implementation of chiral 3N forces can be technically very challenging, a simpler appro
Externí odkaz:
https://doaj.org/article/dd48839b0ba14875800c8d45d3d93cd8
Autor:
Mamiya Kawaguchi, Ken Kikuchi
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033286 (2020)
We show that three-dimensional trace anomalies lead to new universal anomalous transport effects on a conformally flat space-time with background scalar fields. In contrast to conventional anomalous transports in quantum chromodynamics or quantum ele
Externí odkaz:
https://doaj.org/article/f197269e1f544eb0901ed1760039d692
Publikováno v:
Physical Review
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 essential to serve as cosmological and astrophysical probes such as grav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::704393f09070e5699b445d8d8e2fe4bd
https://doi.org/10.1103/physrevd.106.095010
https://doi.org/10.1103/physrevd.106.095010
Publikováno v:
Physical Review
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 structure: susceptibility functions for the chiral symmetry, axial symm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e0f7e80fe55748c4ff1d2ae4fb2ba84
