Zobrazeno 1 - 10
of 76
pro vyhledávání: '"CHRISTOPHER T. HILL"'
Autor:
Christopher T. Hill
Publikováno v:
Entropy, Vol 26, Iss 2, p 146 (2024)
We give a bilocal field theory description of a composite scalar with an extended binding potential that reduces to the Nambu–Jona-Lasinio (NJL) model in the pointlike limit. This provides a description of the internal dynamics of the bound state a
Externí odkaz:
https://doaj.org/article/32b2840b959d4ad09770c5a9ef051a81
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 2, Pp 1-9 (2021)
Abstract We construct an effective field theory (EFT) model that describes matter field interactions with Schwarzschild mini-black-holes (SBH’s), treated as a scalar field, $$B_0(x)$$ B 0 ( x ) . Fermion interactions with SBH’s require a complex
Externí odkaz:
https://doaj.org/article/c7e38b34de674365a7c9bba031d35acd
Publikováno v:
Physics Letters B, Vol 763, Iss , Pp 174-178 (2016)
We discuss models involving two scalar fields coupled to classical gravity that satisfy the general criteria: (i) the theory has no mass input parameters, (ii) classical scale symmetry is broken only through −112ςϕ2R couplings where ς departs fr
Externí odkaz:
https://doaj.org/article/17402be5fb60488ca825d4dd3ebe1f4a
Publikováno v:
Nuclear Physics B, Vol 891, Iss , Pp 613-626 (2015)
In the context of a Coleman–Weinberg mechanism for the Higgs boson mass, we address the strong CP problem. We show that a DFSZ-like invisible axion model with a gauge-singlet complex scalar field S, whose couplings to the Standard Model are natural
Externí odkaz:
https://doaj.org/article/ad85ef6c4cc342e78a494527a3c3977b
Publikováno v:
Physics Letters B, Vol 738, Iss , Pp 191-195 (2014)
The Higgs boson mass may arise from a portal coupling to a singlet field σ which has a very large VEV f≫mHiggs. This requires a sector of “ultra-weak” couplings ζi, where ζi≲mHiggs2/f2. Ultra-weak couplings are technically naturally small
Externí odkaz:
https://doaj.org/article/9b37e7799f5f4f99ab019d00a8b9090b
Publikováno v:
Physics Letters B, Vol 738, Iss , Pp 150-154 (2014)
We study a dynamical mechanism that generates a composite vectorlike fermion, formed by the binding of an N-tuplet of elementary chiral fermions to an N-tuplet of scalars. Deriving the properties of the composite fermion in the large N limit, we show
Externí odkaz:
https://doaj.org/article/6972f9dd271c43f78db583b40f698d5f
Through the study of innovation in processes for the production of synthetic ammonia, the authors examine the effects of environmental and workplace regulations on business innovation in general. They present a history of ammonia production in the U.
Publikováno v:
Earth Surface Processes and Landforms. 47:3224-3238
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fda647fb9936bff8d2e1fb109c4fdd1
https://doi.org/10.1002/esp.5453
https://doi.org/10.1002/esp.5453
Autor:
Dumitru Ghilencea, Christopher T. Hill
Theories of scalars and gravity, with an Einstein-Hilbert term and non-minimal interactions, $M^2R/2 -\alpha\phi^2R/12 $, have graviton exchange induced contact interactions. These modify the renormalization group, leading to a discrepancy between th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b412705c077c5a0f5bcf3a5d8f0fa00
http://arxiv.org/abs/2210.15640
http://arxiv.org/abs/2210.15640
Autor:
Sofia Aldabet, Jon French, Charlotte Thompson, Ivan D. Haigh, Sally Brown, Robert J. Nicholls, Christopher T. Hill, Eli D. Lazarus, Emma L. Tompkins, Ian Townend, Edmund C. Penning-Rowsell
Publikováno v:
Anthropocene Coasts
In the UK, coastal flooding and erosion are two of the primary climate-related hazards to communities, businesses, and infrastructure. To better address the ramifications of those hazards, now and into the future, the UK needs to transform its scatte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2aec7469ab09385e3fcd04f0715065f
https://doi.org/10.31223/x5989c
https://doi.org/10.31223/x5989c