Hawking-Unruh Hadronization and Strangeness Production in High Energy Collisions
The thermal multihadron production observed in different high energy collisions poses many basic problems: why do even elementary, e+e- and hadron-hadron, collisions show thermal behaviour? Why is there in such interactions a suppression of strange particle production? Why does the strangeness suppr...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2014/376982 |
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| author | Paolo Castorina Helmut Satz |
| author_facet | Paolo Castorina Helmut Satz |
| author_sort | Paolo Castorina |
| collection | DOAJ |
| description | The thermal multihadron production observed in different high energy collisions poses many basic problems: why do even elementary, e+e- and hadron-hadron, collisions show thermal behaviour? Why is there in such interactions a suppression of strange particle production? Why does the strangeness suppression almost disappear in relativistic heavy ion collisions? Why in these collisions is the thermalization time less than ≃0.5 fm/c? We show that the recently proposed mechanism of thermal hadron production through Hawking-Unruh radiation can naturally answer the previous questions. Indeed, the interpretation of quark (q)-antiquark (q̅) pairs production, by the sequential string breaking, as tunneling through the event horizon of colour confinement leads to thermal behavior with a universal temperature, T≃170 Mev, related to the quark acceleration, a, by T=a/2π. The resulting temperature depends on the quark mass and then on the content of the produced hadrons, causing a deviation from full equilibrium and hence a suppression of strange particle production in elementary collisions. In nucleus-nucleus collisions, where the quark density is much bigger, one has to introduce an average temperature (acceleration) which dilutes the quark mass effect and the strangeness suppression almost disappears. |
| format | Article |
| id | doaj-art-8b706874dfaf407b9d15fff022f7eb74 |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-8b706874dfaf407b9d15fff022f7eb742025-02-03T06:00:41ZengWileyAdvances in High Energy Physics1687-73571687-73652014-01-01201410.1155/2014/376982376982Hawking-Unruh Hadronization and Strangeness Production in High Energy CollisionsPaolo Castorina0Helmut Satz1Dipartimento di Fisica ed Astronomia, Università di Catania, Via Santa Sofia 64, 95100 Catania, ItalyFakultät für Physik, Universität Bielefeld, GermanyThe thermal multihadron production observed in different high energy collisions poses many basic problems: why do even elementary, e+e- and hadron-hadron, collisions show thermal behaviour? Why is there in such interactions a suppression of strange particle production? Why does the strangeness suppression almost disappear in relativistic heavy ion collisions? Why in these collisions is the thermalization time less than ≃0.5 fm/c? We show that the recently proposed mechanism of thermal hadron production through Hawking-Unruh radiation can naturally answer the previous questions. Indeed, the interpretation of quark (q)-antiquark (q̅) pairs production, by the sequential string breaking, as tunneling through the event horizon of colour confinement leads to thermal behavior with a universal temperature, T≃170 Mev, related to the quark acceleration, a, by T=a/2π. The resulting temperature depends on the quark mass and then on the content of the produced hadrons, causing a deviation from full equilibrium and hence a suppression of strange particle production in elementary collisions. In nucleus-nucleus collisions, where the quark density is much bigger, one has to introduce an average temperature (acceleration) which dilutes the quark mass effect and the strangeness suppression almost disappears.http://dx.doi.org/10.1155/2014/376982 |
| spellingShingle | Paolo Castorina Helmut Satz Hawking-Unruh Hadronization and Strangeness Production in High Energy Collisions Advances in High Energy Physics |
| title | Hawking-Unruh Hadronization and Strangeness Production in High Energy Collisions |
| title_full | Hawking-Unruh Hadronization and Strangeness Production in High Energy Collisions |
| title_fullStr | Hawking-Unruh Hadronization and Strangeness Production in High Energy Collisions |
| title_full_unstemmed | Hawking-Unruh Hadronization and Strangeness Production in High Energy Collisions |
| title_short | Hawking-Unruh Hadronization and Strangeness Production in High Energy Collisions |
| title_sort | hawking unruh hadronization and strangeness production in high energy collisions |
| url | http://dx.doi.org/10.1155/2014/376982 |
| work_keys_str_mv | AT paolocastorina hawkingunruhhadronizationandstrangenessproductioninhighenergycollisions AT helmutsatz hawkingunruhhadronizationandstrangenessproductioninhighenergycollisions |