Tootfinder

The Role of Berry Phases in the QCD Vacuum Structure
J. Gamboa
https://arxiv.org/abs/2506.00078 https://arxiv.org/pdf/2506.00078

The Role of Berry Phases in the QCD Vacuum Structure
We revisit the origin of the vacuum angle $θ$ in QCD using the adiabatic approximation combined with Fujikawa's method. By implementing a local chiral transformation and selecting a constant parameter $α(x) = θ$, we show that the QCD $θ$-term emerges naturally in the effective action. This construction provides a non-perturbative interpretation of the axial anomaly and highlights the role of the adiabatic gauge condition in isolating the topological sector of the theory. As a consequence, t…

Status of the W boson mass and the future of the electroweak fit in the next decades
Giuseppe Bozzi, Matthias Schott
https://arxiv.org/abs/2506.01887 https…

Status of the W boson mass and the future of the electroweak fit in the next decades
A precise determination of the W boson mass is an essential test for the Standard Model of particle physics: the comparison of experimental value and theoretical prediction allows to probe the internal consistency of the electroweak sector and could possibly highlight signals of New Physics. We provide a concise and up-to-date summary of past and recent measurements at lepton and hadron colliders, a discussion of the known perturbative and non-perturbative theoretical ingredients used to provid…

Inferring Obscured Cosmic Black Hole Accretion History from AGN Found by JWST/MIRI CEERS Survey
C. -A. Hsieh (Department of Physics, National Taiwan University), T. Goto (Institute of Astronomy, National Tsing Hua University, Department of Physics, National Tsing Hua University), C. -T. Ling (Institute of Astronomy, National Tsing Hua University), S. J. Kim (Institute of Astronomy, National Tsing Hua University), T. Hashimoto (Department of Physics, National Chung Hsing University), T.…

Inferring Obscured Cosmic Black Hole Accretion History from AGN Found by JWST/MIRI CEERS Survey
This study presents the black hole accretion history (BHAH) of obscured active galactic nuclei (AGNs) identified from the JWST CEERS survey by Chien et al. (2024) using mid-infrared (MIR) SED fitting. We compute black hole accretion rates (BHARs) to estimate the black hole accretion density (BHAD), $ρ_{L_{\mathrm{disk}}}$, across $0 < z < 4.25$. MIR luminosity functions (LFs) are also constructed for these sources, modeled with modified Schechter and double power law forms, and corresponding B…

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Association Chardons Bleus - Un combat contre la dérive sectaire OKC depuis 27 ans
l'Association Chardons Bleus réunit des victimes-survivants parties civiles dans l'affaire OKC en France après 10 ans de bataille judiciaire en Belgique