dorsal/arxiv
View SchemaNew Scaling Law for Deuteron Production in Ultra-Relativistic Nucleus Nucleus Collisions
| Authors | H. Sorge, J. L. Nagle, B. S. Kumar |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9505033 |
| URL | https://arxiv.org/abs/nucl-th/9505033 |
| DOI | 10.1016/0370-2693(95)00763-B |
| Journal | Phys.Lett. B355 (1995) 27-31 |
Abstract
Deuteron production in S and Pb induced collisions at beam energies of 200 and 160 AGeV is studied in the framework of the transport theoretical approach RQMD. Strong transverse flow invalidates the differential coalescence formula in momentum space. The transverse momentum integrated $d$ yields scale in a broad rapidity interval with the squared proton densities and inversely with the produced particle rapidity densities. This kind of scaling can be linked to constant relative sizes of nucleon and pion sources at freeze-out. With increasing projectile mass the nucleon source blows up stronger than the pion source. As a result, the scaled deuteron densities drop in central Pb+Pb collisions by 15 percent as compared to S induced reactions.
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"abstract": "Deuteron production in S and Pb induced collisions at beam energies of 200\nand 160 AGeV is studied in the framework of the transport theoretical approach\nRQMD. Strong transverse flow invalidates the differential coalescence formula\nin momentum space. The transverse momentum integrated $d$ yields scale in a\nbroad rapidity interval with the squared proton densities and inversely with\nthe produced particle rapidity densities. This kind of scaling can be linked to\nconstant relative sizes of nucleon and pion sources at freeze-out. With\nincreasing projectile mass the nucleon source blows up stronger than the pion\nsource. As a result, the scaled deuteron densities drop in central Pb+Pb\ncollisions by 15 percent as compared to S induced reactions.",
"arxiv_id": "nucl-th/9505033",
"authors": [
"H. Sorge",
"J. L. Nagle",
"B. S. Kumar"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1016/0370-2693(95)00763-B",
"journal_ref": "Phys.Lett. B355 (1995) 27-31",
"title": "New Scaling Law for Deuteron Production in Ultra-Relativistic Nucleus Nucleus Collisions",
"url": "https://arxiv.org/abs/nucl-th/9505033"
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