RT Journal Article
T1 Multi-strange baryon production at mid-rapidity in Pb–Pb collisions at √sNN = 2.76 TeV
A1 ALICE Collaboration, 
A1 Armesto Pérez, Néstor
A1 González Ferreiro, Elena
A1 Pajares Vales, Carlos
A1 Salgado López, Carlos Alberto
AB The production of Ξ− and Ω−and their anti-particles in Pb–Pb collisions at√sNN = 2.76 TeVhas been measured using the ALICE detector. The transverse momentum spectra at mid-rapidity(|y| < 0.5) for charged   and   hyperons have been studied in the range 0.6 < pT < 8.0 GeV/c and1.2 < pT < 7.0 GeV/c, respectively, and in several centrality intervals (from the most central 0–10% tothe most peripheral 60–80% collisions). These spectra have been compared with the predictions of recenthydrodynamic models. In particular, the Kraków and EPOS models give a satisfactory description ofthe data, with the latter covering a wider pT range. Mid-rapidity yields, integrated over pT, have beendetermined. The hyperon-to-pion ratios are similar to those at RHIC: they rise smoothly with centralityup to  Npart  ∼ 150 and saturate thereafter. The enhancements (yields per participant nucleon relative tothose in pp collisions) increase both with the strangeness content of the baryon and with centrality, butare less pronounced than at lower energies
PB Elsevier
SN 0370-2693
YR 2014
FD 2014
LK http://hdl.handle.net/10347/21830
UL http://hdl.handle.net/10347/21830
LA eng
NO Abelev, B., Adam, J., Adamová, D., Adare, A. M., Aggarwal, M. M., Rinella, G. A., ... & Ahmad, N. (2014). Multi-strange baryon production at mid-rapidity in Pb–Pb collisions at √sNN= 2.76 TeV. Physics Letters B, 728, 216-227
DS Minerva
RD 24 abr 2026