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- University of Chinese Academy of SciencesCN253 papers
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6 papers · 2 filters
Mass and Isospin Breaking Effects in the Skyrme Model and in Holographic QCD
Lorenzo Bartolini, Stefano Bolognesi, Sven Bjarke Gudnason +1
We discuss how the quark masses and their mass splitting affect the baryons in the Skyrme model as well as the Witten-Sakai-Sugimoto (WSS) model. In both cases baryons are describe…
Nonlinear rigid-body quantization of Skyrmions
Sven Bjarke Gudnason
We consider rigid-body quantization of the Skyrmion in the most general four-derivative generalization of the Skyrme model with a potential giving pions a mass, as well as in a cla…
Boundary terms in the Witten-Sakai-Sugimoto model at finite density
Lorenzo Bartolini, Sven Bjarke Gudnason
We consider the Witten-Sakai-Sugimoto model in the approximation of smeared instantons at finite density via a homogeneous Ansatz, which is known to be discontinuous in order to be…
Quantum binding energies in the Skyrme model
Sven Bjarke Gudnason, Chris Halcrow
A major problem in the Skyrme model is that the binding energy of skyrmions, which model nuclei, is too high by an order of magnitude. We show that the most popular solution to thi…
Modes of the Sakai-Sugimoto soliton
Markus A. G. Amano, Sven Bjarke Gudnason
The instanton in the Sakai-Sugimoto model corresponds to the Skyrmion on the holographic boundary - which is asymptotically flat - and is fundamentally different from the flat Mink…
Aspects of the Electroweak Skyrmion
Stefano Bolognesi, Sven Bjarke Gudnason, Giacomo Santoni
We consider certain aspects of the electroweak Skyrmion (EWS). We discuss the case of EWS with dynamical Higgs and find numerical solutions for various values of the cutoff scale.…