Highlights from NA60
A. De Falco (1), R.Arnaldi (2), K.Banicz (3)(4), K.Borer (5), J.Castor, (6), B.Chaurand (7), W.Chen (8), C.Cicalo (9), A.Colla (10), P.Cortese (2),, S.Damjanovic (3)(4), A.David (4)(11), A.Devaux (6), L.Ducroux (12), H.En'yo, (13), J.Fargeix (6), A.Ferretti (10), M.Floris (1)
TL;DR
This paper presents high-statistics measurements of $$ meson and $$ meson production in In-In collisions at CERN SPS, analyzing their distributions and yields to address the longstanding $$ puzzle and other dimuon phenomena.
Contribution
It provides new detailed measurements of meson production and dimuon spectra in In-In collisions, offering insights into the $$ puzzle and related particle production mechanisms.
Findings
Measurement of $$ meson yields and distributions as a function of centrality.
Observation of dimuon excess below the J/$$ mass.
Comparison with previous data to address the $$ puzzle.
Abstract
NA60 measured dimuon production in p-A and In-In collisions at the CERN SPS. This paper presents a high statistics measurement of meson production in In-In collisions at 158 AGeV. Both the transverse momentum, rapidity, decay angular distributions and the absolute yield were measured as a function of centrality. The results are compared to previous measurements in order to shed light on the long standing puzzle. In addition, highlights on meson production and on the dimuon excess below the J/ mass are presented.
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