Resonance production at SPS energies: CERES and NA49
We present results on resonance production by the NA49 and CERES collaborations. The measurement of the differential yields and spectral distributions of the <i>K<i/>*(892), <i>Δ<i/>(1232), <i>ρ<i/>, <i>ϕ<i/> and <i>Λ<i/>(1520) resonances f...
Saved in:
| Main Author: | |
|---|---|
| Format: | Chapter/Article Conference Paper |
| Language: | English |
| Published: |
29 November 2012
|
| In: |
Resonance Workshop at UT Austin
|
| DOI: | 10.1051/epjconf/20123600005 |
| Online Access: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1051/epjconf/20123600005 Verlag, kostenfrei, Volltext: https://www.epj-conferences.org/articles/epjconf/abs/2012/18/epjconf_aust2012_00005/epjconf_aust2012_00005.html 
|
| Author Notes: | O. Busch for the CERES collaboration |
| Summary: | We present results on resonance production by the NA49 and CERES collaborations. The measurement of the differential yields and spectral distributions of the <i>K<i/>*(892), <i>Δ<i/>(1232), <i>ρ<i/>, <i>ϕ<i/> and <i>Λ<i/>(1520) resonances from their leptonic and hadronic decay channels at different C.M.S. energies and for various colliding systems allows us to study in-medium modifications of the resonance mass, width and yield and constrains the properties of the hadronic phase. For <i>K<i/>*(892)<sup>0<sup/>, a strong system size dependence of the yield relative to kaon production is found. The production of the <i>Δ<i/>(1232) resonance is consistent with thermal model expectations. <i>ϕ<i/> meson spectra and yields reconstructed in the leptonic and hadronic decay channels are in agreement. Low-mass dilepton spectra indicate significant regeneration of the <i>ρ<i/> meson and a strong modification of the <i>ρ<i/> spectral function. |
|---|---|
| Item Description: | Gesehen am 05.06.2018 |
| Physical Description: | Online Resource |
| DOI: | 10.1051/epjconf/20123600005 |