Directed and elliptic flow of charged pions and protons in pb + pb collisions at 40 and 158 a gev
Journal Article
·
· Physical Review C
- LBNL Library
Directed and elliptic flow measurements for charged pions and protons are reported as a function of transverse momentum, rapidity, and centrality for 40 and 158 A GeV Pb + Pb collisions as recorded by the NA49 detector. Both the standard method of correlating particles with an event plane, and the cumulant method of studying multiparticle correlations are used. In the standard method the directed flow is corrected for conservation of momentum. In the cumulant method elliptic flow is reconstructed from genuine 4, 6, and 8-particle correlations, showing the first unequivocal evidence for collective motion in A+A collisions at SPS energies.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 840727
- Report Number(s):
- LBNL--53007
- Journal Information:
- Physical Review C, Journal Name: Physical Review C Journal Issue: 3 Vol. 68
- Country of Publication:
- United States
- Language:
- English
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