Pion magnetic polarisability using the background field method
| Autor: | Ryan Bignell, Derek B. Leinweber, Waseem Kamleh |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Nuclear and High Energy Physics
High Energy Physics::Lattice Hadron Nuclear Theory FOS: Physical sciences 01 natural sciences law.invention Pion High Energy Physics - Lattice law Normal mode 0103 physical sciences 010306 general physics Physics 010308 nuclear & particles physics Background field method High Energy Physics - Lattice (hep-lat) Lattice QCD Fermion lcsh:QC1-999 3. Good health Magnetic field Projector Quantum electrodynamics High Energy Physics::Experiment lcsh:Physics |
| Zdroj: | Physics Letters B, Vol 811, Iss, Pp 135853-(2020) Physics Letters |
| ISSN: | 0370-2693 |
| Popis: | The magnetic polarisability is a fundamental property of hadrons, which provides insight into their structure in the low-energy regime. The pion magnetic polarisability is calculated using lattice QCD in the presence of background magnetic fields. The results presented are facilitated by the introduction of a new magnetic-field dependent quark-propagator eigenmode projector and the use of the background-field corrected clover fermion action. The magnetic polarisabilities are calculated in a relativistic formalism, and the excellent signal-to-noise property of pion correlation functions facilitates precise values. 7 pages, 3 Figures, 1 Table. Version published in Physics Letters B |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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