Cargando…
Chemical equilibration of $\pi$, $\varrho$ and $\omega$ mesons in ultra-relativistic nuclear collisions
I estimate the degree of local chemical equilibration for $\pi$, $\rho$ and $\omega$ mesons in ultra--relativistic nuclear collisions. The $\pi$ and $\rho$ mesons remain near chemical equilibrium in all cases, while the $\omega$ meson density is typically 30--50\% higher than the equilibrium value f...
| Autor principal: | |
|---|---|
| Lenguaje: | eng |
| Publicado: |
1992
|
| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/243825 |
| _version_ | 1780885112218451968 |
|---|---|
| author | Seibert, David |
| author_facet | Seibert, David |
| author_sort | Seibert, David |
| collection | CERN |
| description | I estimate the degree of local chemical equilibration for $\pi$, $\rho$ and $\omega$ mesons in ultra--relativistic nuclear collisions. The $\pi$ and $\rho$ mesons remain near chemical equilibrium in all cases, while the $\omega$ meson density is typically 30--50\% higher than the equilibrium value for O+Ag collisions at $\sqrt{s}=20$ GeV. If chemical reactions are turned off, the $\omega$ meson density is much larger, 2.5--3 times its equilibrium value. Thus, $\omega$ mesons may provide the most sensitive tests for the degree of chemical equilibration in nuclear collisions. |
| id | cern-243825 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1992 |
| record_format | invenio |
| spelling | cern-2438252023-03-31T03:03:15Zhttp://cds.cern.ch/record/243825engSeibert, DavidChemical equilibration of $\pi$, $\varrho$ and $\omega$ mesons in ultra-relativistic nuclear collisionsNuclear Physics - TheoryParticle Physics - PhenomenologyI estimate the degree of local chemical equilibration for $\pi$, $\rho$ and $\omega$ mesons in ultra--relativistic nuclear collisions. The $\pi$ and $\rho$ mesons remain near chemical equilibrium in all cases, while the $\omega$ meson density is typically 30--50\% higher than the equilibrium value for O+Ag collisions at $\sqrt{s}=20$ GeV. If chemical reactions are turned off, the $\omega$ meson density is much larger, 2.5--3 times its equilibrium value. Thus, $\omega$ mesons may provide the most sensitive tests for the degree of chemical equilibration in nuclear collisions.I estimate the degree of local chemical equilibration for pi, rho and omega mesons in ultra--relativistic nuclear collisions. The pi and rho mesons remain near chemical equilibrium in all cases, while the omega meson density is typically about 3-5 times the equilibrium value for O+Ag collisions at sqrt{s}=20 GeV. If chemical reactions are turned off, the omega meson density is much larger, 10-15 times its equilibrium value. Thus, omega mesons may provide the most sensitive tests for the degree of chemical equilibration in nuclear collisions.CERN-TH-6731-92KSUCNR-018-92nucl-th/9301009CERN-TH-6731-92KSU-CNR-92-018oai:cds.cern.ch:2438251992 |
| spellingShingle | Nuclear Physics - Theory Particle Physics - Phenomenology Seibert, David Chemical equilibration of $\pi$, $\varrho$ and $\omega$ mesons in ultra-relativistic nuclear collisions |
| title | Chemical equilibration of $\pi$, $\varrho$ and $\omega$ mesons in ultra-relativistic nuclear collisions |
| title_full | Chemical equilibration of $\pi$, $\varrho$ and $\omega$ mesons in ultra-relativistic nuclear collisions |
| title_fullStr | Chemical equilibration of $\pi$, $\varrho$ and $\omega$ mesons in ultra-relativistic nuclear collisions |
| title_full_unstemmed | Chemical equilibration of $\pi$, $\varrho$ and $\omega$ mesons in ultra-relativistic nuclear collisions |
| title_short | Chemical equilibration of $\pi$, $\varrho$ and $\omega$ mesons in ultra-relativistic nuclear collisions |
| title_sort | chemical equilibration of $\pi$, $\varrho$ and $\omega$ mesons in ultra-relativistic nuclear collisions |
| topic | Nuclear Physics - Theory Particle Physics - Phenomenology |
| url | http://cds.cern.ch/record/243825 |
| work_keys_str_mv | AT seibertdavid chemicalequilibrationofpivarrhoandomegamesonsinultrarelativisticnuclearcollisions |