| Electromagnetic
probes of nuclear collisions |
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| Mean free path larger than |
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| reaction
volume |
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| Dileptons emitted at all stages |
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| of
the collision: |
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| • | neutral meson decays |
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| • | p+p- annihilation |
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| • | qq annihilation |
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| • | Drell-Yan pairs |
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| Measured
spectra reflect full space-time evolution |
| Kirill Filimonov, INPC 2001 |