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pro vyhledávání: '"Drummond, James P."'
Autor:
Drummond, James
Publikováno v:
Modern Geográfia, Vol 19, Iss 2, Pp 91-108 (2024)
Mahikeng, the seat of the Ngaka Modiri Molema District and capital of South Africa’s North West province, has identified tourism as an economic driver based on cultural heritage related to Batswana, Boer, and British contestation. However, the colo
Externí odkaz:
https://doaj.org/article/8a38459cee6f4eebaaeab8495d5a6104
Autor:
Caron-Huot, Simon, Dixon, Lance J., Drummond, James M., Dulat, Falko, Foster, Jack, Gürdoğan, Ömer, von Hippel, Matt, McLeod, Andrew J., Papathanasiou, Georgios
We review the bootstrap method for constructing six- and seven-particle amplitudes in planar $\mathcal{N}=4$ super Yang-Mills theory, by exploiting their analytic structure. We focus on two recently discovered properties which greatly simplify this c
Externí odkaz:
http://arxiv.org/abs/2005.06735
We describe a family of tropical fans related to Grassmannian cluster algebras. These fans are related to the kinematic space of massless scattering processes in a number of ways. For each fan associated to the Grassmannian ${\rm Gr}(k,n)$ there is a
Externí odkaz:
http://arxiv.org/abs/2002.04624
We address the appearance of algebraic singularities in the symbol alphabet of scattering amplitudes in the context of planar $\mathcal{N}=4$ super Yang-Mills theory. We argue that connections between cluster algebras and tropical geometry provide a
Externí odkaz:
http://arxiv.org/abs/1912.08217
We explore the structure of maximally supersymmetric Yang-Mills correlators in the supergravity regime. We develop an algorithm to construct one-loop supergravity amplitudes of four arbitrary Kaluza-Klein supergravity states, properly dualised into s
Externí odkaz:
http://arxiv.org/abs/1912.01047
Publikováno v:
J. High Energ. Phys. 2020, 146 (2020)
We provide a cluster-algebraic approach to the computation of the recently introduced generalised biadjoint scalar amplitudes related to Grassmannians ${\rm Gr}(k,n)$. A finite cluster algebra provides a natural triangulation for the tropical Grassma
Externí odkaz:
http://arxiv.org/abs/1907.01053
Publikováno v:
JHEP 03 (2019) 087
We exploit the recently described property of cluster adjacency for scattering amplitudes in planar $\mathcal{N}=4$ super Yang-Mills theory to construct the symbol of the four-loop NMHV heptagon amplitude. We use a manifestly cluster adjacent ansatz
Externí odkaz:
http://arxiv.org/abs/1812.04640
Autor:
Del Duca, Vittorio, Druc, Stefan, Drummond, James, Duhr, Claude, Dulat, Falko, Marzucca, Robin, Papathanasiou, Georgios, Verbeek, Bram
A novel way of computing high-order amplitudes in the multi-Regge limit of planar maximally supersymmetric Yang-Mills theory is presented. In this framework, we are able to obtain high-loop and high-leg results by an easy operation on known amplitude
Externí odkaz:
http://arxiv.org/abs/1811.10588
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