Recent results on light nuclei production from the NA49 experiment

Abstract

Abstract. Production of d and 3 He nuclei in central Pb+Pb interactions was studied at five collision energies ( √ s NN = 6.3, 7.6, 8.8, 12.3, and 17.3 GeV) with the NA49 detector at the CERN SPS. Transverse momentum spectra and rapidity distributions were measured. Yields are compared to predictions of statistical models. Phase-space distributions of light nuclei are discussed and compared to those of protons in the context of a coalescence approach. The coalescence parameters B 2 and B 3 for d and 3 He were determined at all energies.