Hadrons as Skyrmions in the presence of isospin chemical potential
| Autor: | Marcelo Loewe, S. Mendizabal, J. C. Rojas |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Physics
Nuclear and High Energy Physics Phase transition Particle physics Isoscalar Skyrmion High Energy Physics::Phenomenology Nuclear Theory Hadron FOS: Physical sciences Radius Critical value Atomic and Molecular Physics and Optics High Energy Physics - Phenomenology symbols.namesake High Energy Physics - Phenomenology (hep-ph) Isospin symbols Nuclear Experiment Hamiltonian (quantum mechanics) |
| Zdroj: | Nuclear Physics B - Proceedings Supplements. 174:217-220 |
| ISSN: | 0920-5632 |
| Popis: | The stability of the Skyrmion solution in the presence of finite isospin chemical potential $\mu $ is considered, showing the existence of a critical value $\mu_{c} = 222.8$ MeV where the Skyrmion mass vanishes. Using the Hamiltonian formulation, in terms of collective variables, we discuss the behavior of different skyrmionic parameters as function of the isospin chemical potential ($\mu$), such as the energy density, the isoscalar radius and the isoscalar magnetic radius. We found that the radii start to grow very fast for $\mu \geq 140$ MeV, suggesting the occurrence of a phase transition. Comment: Contribution to the QCD-06 Conference, Montpellier, July 2006 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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