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Transverse mass distributions of neutral pions from \(^{208}\)Pb-induced reactions at 158\(\cdot A\) GeV

  • The WA98 Collaboration
  • M.M. Aggarwal et al.
Experimental physics

Abstract.

Results on transverse mass spectra of neutral pions measured at central rapidity are presented for impact parameter selected 158\(\cdot A\) GeV Pb + Pb, and Pb + Nb collisions. The distributions cover the range \(0.5 \mathrm{GeV}/c^2 \le m_T - m_0 \le 4 \mathrm{GeV}/c^2\). The change of the spectral shape and the multiplicity with centrality is studied in detail. In going from p+p to semi-peripheral Pb+Pb collisions there is a nuclear enhancement increasing with transverse mass similar to the well known Cronin effect, while for very central collisions this enhancement appears to be weaker than expected.

Keywords

Mass Spectrum Mass Distribution Impact Parameter Central Rapidity Spectral Shape 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg / Società Italiana di Fisica 2002

Authors and Affiliations

  • The WA98 Collaboration
  • M.M. Aggarwal et al.
    • 1
  1. 1.University of Panjab, Chandigarh 160014, India IN

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