dorsal/arxiv
View SchemaShort-Lived Phi Mesons
| Authors | Laura Holt, Kevin Haglin |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0409036 |
| URL | https://arxiv.org/abs/nucl-th/0409036 |
| DOI | 10.1088/0954-3899/31/4/030 |
| Journal | J.Phys. G31 (2005) S245-S252 |
Abstract
We use effective hadronic field theory to study in-medium properties of the $\phi$ meson. The dominant decay channels $\phi\toK^{+}K^{-}$ and $\phi\to\pi\rho$ are modeled using an SU(3) chiral Lagrangian with normal and abnormal parities. The $\phi$ self-energy is approximated to one-, two-, and even three-loop order in the strong coupling. Effects of modified spectral functions for $\pi$, $K$, $\rho$ and $\phi$ are also included in the calculation. This allows us to study in-medium decay of phi mesons into (in-medium) kaon-pair daughters and (in-medium) $\pi\rho$ pairs. The results point to the possibility of rather short-lived $\phi$'s, short enough to decay inside the fireball in relativistic heavy ion collisions. Implications relevant for the NA49 and NA50 experimental results, recently dubbed the ``$\phi$ puzzle'', are discussed.
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"abstract": "We use effective hadronic field theory to study in-medium properties of the\n$\\phi$ meson. The dominant decay channels $\\phi\\toK^{+}K^{-}$ and\n$\\phi\\to\\pi\\rho$ are modeled using an SU(3) chiral Lagrangian with normal and\nabnormal parities. The $\\phi$ self-energy is approximated to one-, two-, and\neven three-loop order in the strong coupling. Effects of modified spectral\nfunctions for $\\pi$, $K$, $\\rho$ and $\\phi$ are also included in the\ncalculation. This allows us to study in-medium decay of phi mesons into\n(in-medium) kaon-pair daughters and (in-medium) $\\pi\\rho$ pairs. The results\npoint to the possibility of rather short-lived $\\phi$\u0027s, short enough to decay\ninside the fireball in relativistic heavy ion collisions. Implications relevant\nfor the NA49 and NA50 experimental results, recently dubbed the ``$\\phi$\npuzzle\u0027\u0027, are discussed.",
"arxiv_id": "nucl-th/0409036",
"authors": [
"Laura Holt",
"Kevin Haglin"
],
"categories": [
"nucl-th"
],
"doi": "10.1088/0954-3899/31/4/030",
"journal_ref": "J.Phys. G31 (2005) S245-S252",
"title": "Short-Lived Phi Mesons",
"url": "https://arxiv.org/abs/nucl-th/0409036"
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