A comparative measurement of ϕ→K+K− and ϕ→μ+μ− in In–In collisions at the CERN SPS

R. Arnaldi,K. Banicz,J. Castor,B. Chaurand,W. Chen, C. Cicalò,A. Colla,P. Cortese,S. Damjanovic,A. David,A. de Falco, A. Devaux,L. Ducroux,H. Enʼyo, J. Fargeix, A. Ferretti,M. Floris,A. Förster,P. Force, N. Guettet

Physics Letters B（2011）

引用 20|浏览47

暂无评分

摘要

The NA60 experiment at the CERN SPS has studied ϕ meson production in In–In collisions at 158 A GeV via both the K+K− and the μ+μ− decay channels. The yields and inverse slope parameters of the mT spectra observed in the two channels are compatible within errors, different from the large discrepancies seen in Pb–Pb collisions between the hadronic (NA49) and dimuon (NA50) decay channels. Possible physics implications are discussed.

查看译文

关键词

Heavy ion collisions,ϕ puzzle

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要