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Parton Momentum Distribution at the Moment of Jet-Parton Collisions |
| WONG Cheuk-Yin |
| Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, U.S.A. |
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WONG Cheuk-Yin 2008 Chin. Phys. Lett. 25 3936-3939 |
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Abstract The early parton momentum distribution is extracted by using the STAR collaboration data of ridge particles associated with a near-side jet in central AuAu collisions at √sNN=200GeV. The ridge particles are identified as medium partons kicked by the jet near the surface and they carry direct information on the parton momentum distribution at the moment of jet-parton collisions. The extracted parton momentum distribution has a thermal-like transverse momentum distribution but a rapidity plateau structure with a relatively flat rapidity distribution at mid-rapidities with sharp kinematic boundaries at large rapidities that depend on the transverse momentum
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| Keywords:
25.75.Gz
25.75.Dw
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Received: 29 May 2008
Published: 25 October 2008
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| PACS: |
25.75.Gz
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(Particle correlations and fluctuations)
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25.75.Dw
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(Particle and resonance production)
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