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20 papers · 1 filter
The appearence of the resolved singular hypersurface {x_0}{x_1}-{{x_2}^n} =0 in the classical phase space of the Lie group SU(n)
Samir K. Paul, Siddhartha Sen
A classical phase space with a suitable symplectic structure is constructed together with functions which have Poisson brackets algebraically identical to the Lie algebra structure…
Ferromagnetism of a graphite nodule from the Canyon Diablo meteorite
J. M. D. Coey, M. Venkatesan, C. B. Fitzgerald +2
There have recently been various reports of weak ferromagnetism in graphite (1,2) and synthetic carbon materials (3) such as rhombohedral C60 (4), as well as a theoretical predicti…
Supersymmetry on the lattice
Alessandra Feo
Lattice results in supersymmetry are summarized. Past, present and future perspectives are discussed.
Icosahedral Skyrmions
Richard Battye, Conor Houghton, Paul Sutcliffe
In this paper we aim to determine the baryon numbers at which the minimal energy Skyrmion has icosahedral symmetry. By comparing polyhedra which arise as minimal energy Skyrmions w…
Tachyon Dynamics and the Effective Action Approximation
N. D. Lambert, I. Sachs
Recently effective actions have been extensively used to describe tachyon condensation in string theory. While the various effective actions which have appeared in the literature h…
Remark on the Theoretical Uncertainty in - Mixing
Sinead M. Ryan, Andreas S. Kronfeld
We re-examine the theoretical uncertainty in the Standard Model expression for - mixing. We focus on lattice calculations of the ratio , needed to relate the osc…