dorsal/arxiv
View SchemaThe Spectator Electromagnetic Effect on Charged Pion Spectra in Peripheral Ultrarelativistic Heavy-Ion Collisions
| Authors | Andrzej Rybicki, Antoni Szczurek |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0610036 |
| URL | https://arxiv.org/abs/nucl-th/0610036 |
| DOI | 10.1103/PhysRevC.75.054903 |
| Journal | Phys.Rev.C75:054903,2007 |
Abstract
We estimate the electromagnetic effect of the spectator charge on the momentum spectra of $\pi^+$ and $\pi^-$ produced in peripheral Pb+Pb collisions at SPS energies. We find that the effect is large and results in strongly varying structures in the $x_F$ dependence of the $\pi^+/\pi^-$ ratio, especially at low transverse momenta where a deep valley in the above ratio is predicted at $x_F \sim$ 0.15 -- 0.20. It appears that the effect depends on initial conditions. Thus, it provides new information on the space and time evolution of the non-perturbative pion creation process.
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"abstract": "We estimate the electromagnetic effect of the spectator charge on the\nmomentum spectra of $\\pi^+$ and $\\pi^-$ produced in peripheral Pb+Pb collisions\nat SPS energies. We find that the effect is large and results in strongly\nvarying structures in the $x_F$ dependence of the $\\pi^+/\\pi^-$ ratio,\nespecially at low transverse momenta where a deep valley in the above ratio is\npredicted at $x_F \\sim$ 0.15 -- 0.20.\n It appears that the effect depends on initial conditions. Thus, it provides\nnew information on the space and time evolution of the non-perturbative pion\ncreation process.",
"arxiv_id": "nucl-th/0610036",
"authors": [
"Andrzej Rybicki",
"Antoni Szczurek"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.75.054903",
"journal_ref": "Phys.Rev.C75:054903,2007",
"title": "The Spectator Electromagnetic Effect on Charged Pion Spectra in Peripheral Ultrarelativistic Heavy-Ion Collisions",
"url": "https://arxiv.org/abs/nucl-th/0610036"
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