dorsal/arxiv
View SchemaRecombination of Shower Partons at High $p_T$ in Heavy-Ion Collisions
| Authors | Rudolph C. Hwa, C. B. Yang |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0401001 |
| URL | https://arxiv.org/abs/nucl-th/0401001 |
| DOI | 10.1103/PhysRevC.70.024905 |
| Journal | Phys.Rev. C70 (2004) 024905 |
Abstract
A formalism for hadron production at high \pt in heavy-ion collisions has been developed such that all partons hadronize by recombination. The fragmentation of a hard parton is accounted for by the recombination of shower partons that it creates. Such shower partons can also recombine with the thermal partons to form particles that dominate over all other possible modes of hadronization in the $3<p_T<8$ GeV range. The results for the high \pt spectra of pion, kaon, and proton agree well with experiments. Energy loss of partons in the dense medium is taken into account on the average by an effective parameter by fitting data, and is found to be universal independent of the type of particles produced, as it should. Due to the recombination of thermal and shower partons, the structure of jets produced in nuclear collisions is different from that in $pp$ collisions. The consequence on same-side correlations is discussed.
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"abstract": "A formalism for hadron production at high \\pt in heavy-ion collisions has\nbeen developed such that all partons hadronize by recombination. The\nfragmentation of a hard parton is accounted for by the recombination of shower\npartons that it creates. Such shower partons can also recombine with the\nthermal partons to form particles that dominate over all other possible modes\nof hadronization in the $3\u003cp_T\u003c8$ GeV range. The results for the high \\pt\nspectra of pion, kaon, and proton agree well with experiments. Energy loss of\npartons in the dense medium is taken into account on the average by an\neffective parameter by fitting data, and is found to be universal independent\nof the type of particles produced, as it should. Due to the recombination of\nthermal and shower partons, the structure of jets produced in nuclear\ncollisions is different from that in $pp$ collisions. The consequence on\nsame-side correlations is discussed.",
"arxiv_id": "nucl-th/0401001",
"authors": [
"Rudolph C. Hwa",
"C. B. Yang"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.70.024905",
"journal_ref": "Phys.Rev. C70 (2004) 024905",
"title": "Recombination of Shower Partons at High $p_T$ in Heavy-Ion Collisions",
"url": "https://arxiv.org/abs/nucl-th/0401001"
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