Decay of Resonaces in Strong Magnetic Field

31st Winter Workshop on Nuclear Dynamics

Filip, Peter^1

Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava

82103, Slovakia^1

关键词: Branching ratio;    Decay channels;    Decay properties;    Energy increase;    External fields;    External magnetic field;    Static fields;    Strong magnetic fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/636/1/012013/pdf
DOI  :  10.1088/1742-6596/636/1/012013

来源: IOP

【 摘 要 】

We suggest that decay properties (branching ratios) of hadronic resonances may become modified in strong external magnetic field. The behavior of K±∗, K0∗vector mesons as well as Λ∗(1520) and Ξ0∗baryonic states is considered in static fields 1013-1015T. In particular, n = 0 Landau level energy increase of charged particles in the external magnetic field, and the interaction of hadron magnetic moments with the field is taken into account. We suggest that enhanced yield of dileptons and photons from ρ0(770) mesons may occur if strong decay channel ρ0→ π+π-is significantly suppressed. CP - violating π+π-decays of pseudoscalar ηcand η(547) mesons in the magnetic field are discussed, and superpositions of quarkonium states ηc,band χc,b(nP) with Ψ(nS), Υ(nS) mesons in the external field are considered.