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arXiv · 1612.02966

Spectral properties of $ρ$ meson in a magnetic field

Snigdha Ghosh·Arghya Mukherjee·Mahatsab Mandal·Sourav Sarkar·Pradip Roy
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Abstract

We calculate the rho meson mass in a weak magnetic field using effective $ρππ$ interaction. It is seen that both $ρ^0$ and $ρ^\pm$ masses decrease with the magnetic field in vacuum. $ρ$ meson dispersion relation has been calculated and shown to be different for $ρ^0$ and $ρ^\pm$. We also calculate the $ρππ$ decay width and spectral functions of $ρ^0$ and $ρ^\pm$. The width is seen to decrease with $eB$ and the spectral functions become narrower.

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Snigdha Ghosh, Arghya Mukherjee, Mahatsab Mandal, Sourav Sarkar, Pradip Roy. 2016-12-09. Spectral properties of $ρ$ meson in a magnetic field. https://doi.org/10.1103/physrevd.94.094043

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