Gluonic Lorentz violation and chiral perturbation theory
| Autor: | J. P. Noordmans |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Quark
Particle physics Chiral perturbation theory Lagrangians Nuclear Theory Lorentz transformation High Energy Physics::Lattice Strong interaction FOS: Physical sciences 01 natural sciences Nucleon Nuclear Theory (nucl-th) symbols.namesake High Energy Physics - Phenomenology (hep-ph) Operator (computer programming) 0103 physical sciences 010306 general physics Nuclear Experiment Physics Quantum chromodynamics Arrival directions 010308 nuclear & particles physics High Energy Physics::Phenomenology Extension (predicate logic) High Energy Physics - Phenomenology Parity Effective-field theory symbols Energy cosmic-rays High Energy Physics::Experiment Cpt |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| Popis: | By applying chiral-perturbation-theory methods to the QCD sector of the Lorentz-violating Standard-Model Extension, we investigate Lorentz violation in the strong interactions. In particular, we consider the CPT-even pure-gluon operator of the minimal Standard-Model Extension. We construct the lowest-order chiral effective Lagrangian for three as well as two light quark flavors. We develop the power-counting rules and construct the heavy-baryon chiral-perturbation-theory Lagrangian, which we use to calculate Lorentz-violating contributions to the nucleon self energy. Using the constructed effective operators, we derive the first stringent limits on many of the components of the relevant Lorentz-violating parameter. We also obtain the Lorentz-violating nucleon-nucleon potential. We suggest that this potential may be used to obtain new limits from atomic-clock or deuteron storage-ring experiments. 20 pages, 1 figure |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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