Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2008-09-02
J.Phys.G35:104054,2008
Physics
High Energy Physics
High Energy Physics - Experiment
4 Pages, 2 Figures. Proceedings of the 20$^{th}$ International Conference on Ultra-Relativistic Nucleus Nucleus Collisions
Scientific paper
10.1088/0954-3899/35/10/104054
The NA60 experiment measured dimuon production in In-In collisions at 158 AGeV. This paper presents a high statistics measurement of $\phi\to\mu\mu$ with the specific objective to provide insight on the $\phi$ puzzle, i.e. the difference in the inverse $T$ slopes and absolute yields measured by NA49 and NA50 in the kaon and lepton channel, respectively. Transverse momentum distributions were studied as a function of centrality. The slope parameter $T$ shows a rapid increase with centrality, followed by a saturation. Variations of $T$ with the fit range of the order of 15 MeV were observed, possibly as a consequence of radial flow. The $\phi$ meson yield normalized to the number of participants increases with centrality and is consistently higher than the yield measured by the NA49 experiment at any centrality.
Floris Michele
for the NA60 Collaboration
No associations
LandOfFree
$φ$ Meson Production in In-In Collisions and the $φ$ Puzzle does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with $φ$ Meson Production in In-In Collisions and the $φ$ Puzzle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and $φ$ Meson Production in In-In Collisions and the $φ$ Puzzle will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-61104