Strange mesons in strong magnetic fields

Abstract

The masses of the strange mesons ($K$, $K^{\ast }$ and $\varphi$) are investigated in the presence of strong magnetic fields. The changes in the masses of these mesons arise from the mixing of the pseusdoscalar and vector mesons in the presence of a magnetic field. For the charged mesons, these mass modifications are in addition to the contributions from the lowest Landau energy levels to their masses. The decay widths, $\varphi \to K\bar{K}$ and $K^{\ast }\to K\pi$, in the presence of the magnetic field are studied using a field theoretic model of composite hadrons with constituent quarks/antiquarks. The model uses the free Dirac Hamiltonian in terms of the constituent quark fields as the light quark antiquark pair creation term and explicit constructions for the meson states in terms of the constituent quarks and anitiquarks to study the decay processes. The study of the masses and decay widths of the strange mesons in strong magnetic fields can have observable consequences on the production of the open and hidden strange mesons in the peripheral ultra high energy collisions at LHC, where the created magnetic field can be huge.

20 pages, 3 figures. published in Int. Jour. Mod. Phys. E, Vol. 30, No. 3 (2021) 2150014. arXiv admin note: text overlap with arXiv:2005.00354

References in corpus (9)

• The Chiral Magnetic Effect
• Strangeness in Nuclei and Neutron Stars
• Charmonium Spectroscopy in Strong Magnetic Fields by QCD Sum Rules: S-Wave Ground States
• Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter
• Isospin dependent kaon and antikaon optical potentials in dense hadronic matter
• Kaons and antikaons in asymmetric nuclear matter
• $K^{\ast }$ vector meson resonances dynamics in heavy-ion collisions
• Masses and Decay widths of Charmonium states in presence of strong magnetic fields
• Modification of the masses of the lightest neutral mesons in a hadronic medium under an external magnetic field

Cited by in corpus (4)

• Light pseudo-scalar meson masses under strong magnetic fields within the SU(3) Nambu-Jona-Lasinio model
• Mass spectra of neutral mesons $K_0,{\pi }_0,\eta ,{\eta }^{\prime }$ at finite magnetic field, temperature and baryon chemical potential
• An energy independent scaling of transverse momentum spectra of direct (prompt) photons from two-body processes in high-energy proton-proton collisions
• Dirac sea effects on Heavy Quarkonia decay widths in magnetized matter -- a field theoretic model of composite hadrons