dorsal/arxiv
View SchemaObservation of Partial U_A(1) Restoration from Two-Pion Bose-Einstein Correlations
| Authors | Stephen E. Vance, Tamas Csorgo, Dmitri Kharzeev |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9802074 |
| URL | https://arxiv.org/abs/nucl-th/9802074 |
| DOI | 10.1103/PhysRevLett.81.2205 |
| Journal | Phys.Rev.Lett. 81 (1998) 2205-2208 |
Abstract
The effective intercept parameter of the two-pion Bose-Einstein correlation function, lambda_*, is found to be sensitive to the partial restoration of U_A(1) symmetry in ultra-relativistic nuclear collisions. An increase in the yield of the eta' meson, proposed earlier as a signal of partial U_A(1) restoration, is shown to create a ``hole'' in the low p_t region of lambda_*. A comparison with NA44 data from central S+Pb collisions at 200 AGeV is made and implications for future heavy ion experiments are discussed.
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"abstract": "The effective intercept parameter of the two-pion Bose-Einstein correlation\nfunction, lambda_*, is found to be sensitive to the partial restoration of\nU_A(1) symmetry in ultra-relativistic nuclear collisions. An increase in the\nyield of the eta\u0027 meson, proposed earlier as a signal of partial U_A(1)\nrestoration, is shown to create a ``hole\u0027\u0027 in the low p_t region of lambda_*. A\ncomparison with NA44 data from central S+Pb collisions at 200 AGeV is made and\nimplications for future heavy ion experiments are discussed.",
"arxiv_id": "nucl-th/9802074",
"authors": [
"Stephen E. Vance",
"Tamas Csorgo",
"Dmitri Kharzeev"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevLett.81.2205",
"journal_ref": "Phys.Rev.Lett. 81 (1998) 2205-2208",
"title": "Observation of Partial U_A(1) Restoration from Two-Pion Bose-Einstein Correlations",
"url": "https://arxiv.org/abs/nucl-th/9802074"
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