dorsal/arxiv
View SchemaJ/Psi Suppression in Heavy Ion Collisions at the CERN SPS
| Authors | D. E. Kahana, S. H. Kahana |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9808025 |
| URL | https://arxiv.org/abs/nucl-th/9808025 |
| DOI | 10.1016/S0146-6410(99)00082-4 |
Abstract
We reexamine the production of J/Psi and other charmonium states for a variety of target-projectile choices at the SPS. For this study we use a newly constructed cascade code LUCIFER II, which yields acceptable descriptions of both hard and soft processes, specifically Drell-Yan and hidden charm production, and soft energy loss and meson production, at the SPS. Glauber calculations of other authors are redone, and compared directly to the cascade results. The modeling of the charmonium states differs from that of earlier workers in its unified treatment of the hidden charm meson spectrum, which is introduced from the outset as a set of coupled states. The result is a description of the NA38 and NA50 data in terms of a conventional hadronic picture. The apparently anomalous suppression found in the most massive Pb+Pb system arises from three sources: destruction in the initial nucleon-nucleon cascade, use of coupled channels to exploit the larger breakup in the less bound Chi and Psi' states, and comover interaction in the final low energy phase.
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"abstract": "We reexamine the production of J/Psi and other charmonium states for a\nvariety of target-projectile choices at the SPS. For this study we use a newly\nconstructed cascade code LUCIFER II, which yields acceptable descriptions of\nboth hard and soft processes, specifically Drell-Yan and hidden charm\nproduction, and soft energy loss and meson production, at the SPS. Glauber\ncalculations of other authors are redone, and compared directly to the cascade\nresults. The modeling of the charmonium states differs from that of earlier\nworkers in its unified treatment of the hidden charm meson spectrum, which is\nintroduced from the outset as a set of coupled states. The result is a\ndescription of the NA38 and NA50 data in terms of a conventional hadronic\npicture. The apparently anomalous suppression found in the most massive Pb+Pb\nsystem arises from three sources: destruction in the initial nucleon-nucleon\ncascade, use of coupled channels to exploit the larger breakup in the less\nbound Chi and Psi\u0027 states, and comover interaction in the final low energy\nphase.",
"arxiv_id": "nucl-th/9808025",
"authors": [
"D. E. Kahana",
"S. H. Kahana"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0146-6410(99)00082-4",
"title": "J/Psi Suppression in Heavy Ion Collisions at the CERN SPS",
"url": "https://arxiv.org/abs/nucl-th/9808025"
},
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