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pro vyhledávání: '"Vuong, Pham Ngoc Hoa"'
Autor:
Bedi, Ravneet, Gherghetta, Tony, Grojean, Christophe, Guedes, Guilherme, Kley, Jonathan, Vuong, Pham Ngoc Hoa
Small instantons which increase the axion mass due to an appropriate modification of QCD at a UV scale $\Lambda_{\rm SI}$, can also enhance the effect of CP-violating operators to shift the axion potential minimum by an amount, $\theta_{\rm ind}$, pr
Externí odkaz:
http://arxiv.org/abs/2402.09361
We show that the QCD axion couples to the electromagnetic kinetic term at one loop. The result is that if axions make up dark matter, they induce temporal variation of the fine structure constant $\alpha$, which is severely constrained. We recast the
Externí odkaz:
http://arxiv.org/abs/2307.10362
Publikováno v:
Phys.Rev.D 107 (2023) 2, 025017
The path-integral measure of a gauge-invariant fermion theory is transformed under the chiral transformation and leads to an elegant derivation of the anomalous chiral Ward-Takahashi identities, as we know from the seminal work of Fujikawa. We presen
Externí odkaz:
http://arxiv.org/abs/2205.02248
Publikováno v:
JHEP 08 (2022) 137
In this paper, we discuss the construction of Effective Field Theories (EFTs) in which a chiral fermion, charged under both gauge and global symmetries, is integrated out. Inspired by typical axion models, these symmetries can be spontaneously broken
Externí odkaz:
http://arxiv.org/abs/2112.00553
Autor:
Ellis, Sebastian A. R., Quevillon, Jérémie, Vuong, Pham Ngoc Hoa, You, Tevong, Zhang, Zhengkang
Recent development of path integral matching techniques based on the covariant derivative expansion has made manifest a universal structure of one-loop effective Lagrangians. The universal terms can be computed once and for all to serve as a referenc
Externí odkaz:
http://arxiv.org/abs/2006.16260
Publikováno v:
Phys. Rev. D 102, 015023 (2020)
Axion models with generation-dependent Peccei-Quinn charges can lead to flavor-changing neutral currents, thus motivating QCD axion searches at precision flavor experiments. We rigorously derive limits on the most general effective flavor-violating c
Externí odkaz:
http://arxiv.org/abs/2002.04623
Akademický článek
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Publikováno v:
JHEP
JHEP, 2020, 11, pp.078. ⟨10.1007/JHEP11(2020)078⟩
Journal of High Energy Physics, Vol 2020, Iss 11, Pp 1-29 (2020)
Journal of High Energy Physics
JHEP, 2020, 11, pp.078. ⟨10.1007/JHEP11(2020)078⟩
Journal of High Energy Physics, Vol 2020, Iss 11, Pp 1-29 (2020)
Journal of High Energy Physics
Recent development of path integral matching techniques based on the covariant derivative expansion has made manifest a universal structure of one-loop effective Lagrangians. The universal terms can be computed once and for all to serve as a referenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d861565d7db326ae2aabbce823854267
https://doi.org/10.1007/jhep11(2020)078
https://doi.org/10.1007/jhep11(2020)078
