Semileptonic Decays of Vector Mesons $$[\rho ,\omega ,\phi ] \to \pi [{{e}^{ + }}{{e}^{ - }},{{\mu }^{ + }}{{\mu }^{ - }}]$$ in a Chiral NJL Model
| Autor: | M. K. Volkov, K. Nurlan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Radiation Meson 010308 nuclear & particles physics High Energy Physics::Lattice Nuclear Theory High Energy Physics::Phenomenology 01 natural sciences Omega Atomic and Molecular Physics and Optics Photon field Direct production Pion 0103 physical sciences Pi High Energy Physics::Experiment Radiology Nuclear Medicine and imaging Production (computer science) 010306 general physics Lepton |
| Zdroj: | Physics of Particles and Nuclei Letters. 18:148-152 |
| ISSN: | 1531-8567 1547-4771 |
| Popis: | Semileptonic decays of vector mesons $$\rho $$ , $$\omega $$ , ϕ into a pion and lepton pair $${{e}^{ + }}{{e}^{ - }},{{\mu }^{ + }}{{\mu }^{ - }}$$ are described in the chiral Nambu–Jona–Lasinio (NJL) model. Mixing of $$\omega $$ with ϕ is taken into account in a description of vector ϕ meson decay. Direct production via a photon field and production with the participation of intermediate vector mesons $$\rho $$ or $$\omega $$ are taken into account in the production of $${{l}^{ + }}{{l}^{ - }}$$ lepton pairs. The total and differential widths are compared with an experiment. Predictions for $$\rho \to \pi \,\,[{{e}^{ + }}{{e}^{ - }},{{\mu }^{ + }}{{\mu }^{ - }}]$$ and $$\phi \to \pi {{\mu }^{ + }}{{\mu }^{ - }}$$ decays are also given. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink