CERN Accelerating science

Article
Report number arXiv:1104.4060
Title A comparative measurement of $\phi\rightarrow K^+K^-$ and $\phi\rightarrow \mu^+\mu^-$ in In-In collisions at the CERN SPS
Author(s)

Arnaldi, R. (INFN, Turin) ; Banicz, K. (CERN ; Heidelberg U.) ; Castor, J. (Clermont-Ferrand U.) ; Chaurand, B. (Ecole Polytechnique) ; Chen, W. (RIKEN BNL) ; Cicalo, C. (INFN, Cagliari) ; Colla, A. (Turin U. ; INFN, Turin) ; Cortese, P. (Turin U. ; INFN, Turin) ; Damjanovic, S. (CERN ; Heidelberg U.) ; David, A. (CERN ; Lisbon, IST) ; de Falco, A. (Cagliari U. ; INFN, Cagliari) ; Devaux, A. (Clermont-Ferrand U.) ; Ducroux, L. (Lyon, IPN) ; En'yo, H. (Nishina Ctr., RIKEN) ; Fargeix, J. (Clermont-Ferrand U.) ; Ferretti, A. (Turin U. ; INFN, Turin) ; Floris, M. (Cagliari U. ; INFN, Cagliari) ; Forster, A. (CERN) ; Force, P. (Clermont-Ferrand U.) ; Guettet, N. (CERN ; Clermont-Ferrand U.) ; Guichard, A. (Lyon, IPN) ; Gulkanian, H. (Yerevan Phys. Inst.) ; Heuser, J.M. (Nishina Ctr., RIKEN) ; Keil, M. (CERN ; Lisbon, IST) ; Li, Z. (RIKEN BNL) ; Lourenco, C. (CERN) ; Lozano, J. (Lisbon, IST) ; Manso, F. (Clermont-Ferrand U.) ; Martins, P. (CERN ; Lisbon, IST) ; Masoni, A. (INFN, Cagliari) ; Neves, A. (Lisbon, IST) ; Ohnishi, H. (Nishina Ctr., RIKEN) ; Oppedisano, C. (INFN, Turin) ; Parracho, P. (CERN ; Lisbon, IST) ; Pillot, P. (Lyon, IPN) ; Poghosyan, T. (Yerevan Phys. Inst.) ; Puddu, G. (Cagliari U. ; INFN, Cagliari) ; Radermacher, E. (CERN) ; Ramalhete, P. (CERN) ; Rosinsky, P. (CERN) ; Scomparin, E. (INFN, Turin) ; Seixas, J. (Lisbon, IST) ; Serci, S. (Cagliari U. ; INFN, Cagliari) ; Shahoyan, R. (CERN ; Lisbon, IST) ; Sonderegger, P. (Lisbon, IST) ; Specht, H.J. (Heidelberg U.) ; Tieulent, R. (Lyon, IPN) ; Uras, A. (Cagliari U. ; INFN, Cagliari) ; Usai, G. (Cagliari U. ; INFN, Cagliari) ; Veenhof, R. (CERN) ; Wohri, H.K. (Cagliari U. ; INFN, Cagliari ; Lisbon, IST)

Publication 2011
Imprint 21 Apr 2011
Number of pages 7
Note Long author list - awaiting processing
Long author list - awaiting processing
In: Phys. Lett. B 699 (2011) 325-329
DOI 10.1016/j.physletb.2011.04.028
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; NA60
Abstract The NA60 experiment at the CERN SPS has studied $\phi$ meson production in In-In collisions at 158A GeV via both the $K^+K^-$ and the $\mu^+\mu^-$ decay channels. The yields and inverse slope parameters of the $m_T$ 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.
Copyright/License Elsevier B.V.

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 記錄創建於2011-04-21,最後更新在2023-03-14


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