6Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
7Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
8Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, USA
9Department of Physics, McGill University, Montréal QC H3A 2T8, Canada
10Department of Physics, University of California, Berkeley, California 94270, USA
11Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
12GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
13Institute for Theoretical Physics, Goethe University, 60438 Frankfurt am Main, Germany
14Frankfurt Institute for Advanced Studies, 60438 Frankfurt am Main, Germany
15Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
16Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
17School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, People's Republic of China
18Department of Statistical Science, Duke University, Durham, North Carolina 27708, USA
19Department of Physics, University of Regina, Regina, SK S4S 0A2, Canada
20Daresbury Laboratory, Daresbury, Warrington, Cheshire WA44AD, United Kingdom
21Instituto de Fìsica, Universidade de São Paulo, C.P. 66318, 05315-970 São Paulo, SP, Brazil
22Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
23Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
24Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
25RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA
26University of Jyväskylä, Department of Physics, P.O. Box 35, FI-40014 University of Jyväskylä, Finland
27Helsinki Institute of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland
28Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, People's Republic of China