Details

Autor(en) / Beteiligte

• Abelev, B.
• Aphecetche, Laurent
• Baldisseri, A.
• Barret, V.
• Bastid, N.
• Batigne, Guillaume
• Bergognon, A.A.E.
• Borel, H.
• Bregant, M.
• Castillo Castellanos, J.
• Charvet, J.L.
• Cheshkov, C.
• Cheynis, B.
• Crochet, P.
• Delagrange, H.
• Ducroux, L.
• Dupieux, P.
• Erazmus, B.
• Estienne, Magali
• Germain, Marie
• Grossiord, J.-Y.
• Guilbaud, Maxime
• Hippolyte, B.
• Kuhn, C.
• Lopez, X.
• Manso, F.
• Martinez Garcia, Gines
• Martin Blanco, J.
• Mas, A.
• Massacrier, L.
• Molnar, L.
• Pereira da Costa, H.
• Pillot, Philippe
• Porteboeuf-Houssais, S.
• Rakotozafindrabe, A.
• Rosnet, P.
• Roy, C.
• Sanchez Castro, X.
• Schutz, Y.
• Shabetai, Alexandre
• Stocco, Diego
• Tieulent, R.
• Uras, A.
• Vernet, R.
• Vulpescu, B.
• Yang, H.
• Zhang, X.
• Zoccarato, Y.
• Baek, Y.W.
• Li, S.
• Marchisone, M.
• Arbor, N.
• Conesa Balbastre, G.
• Faivre, J.
• Furget, C.
• Guernane, R.
• Kox, S.
• Real, J.S.
• Silvestre, C.
• Valle, Z. Conesa Del
• Das, I.
• Espagnon, B.
• Hadjidakis, C.
• Lakomov, I.
• Suire, C.
• Takaki, J. D. Tapia
• Valencia Palomo, L.

Titel

Multi-strange baryon production at mid-rapidity in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV

Ist Teil von

• Physics letters. B, 2014, Vol.728, p.216-227

Ort / Verlag

Elsevier

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The ALICE experiment at the LHC has measured the production of {\Xi}- and {\Omega}- baryons and their anti-particles in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV. The transverse momentum spectra at mid-rapidity (|y| < 0.5) for charged {\Xi} and {\Omega} hyperons have been studied in the range 0.6 < pT < 8.0 GeV/c and 1.2 < pT < 7.0 GeV/c, respectively, and in several centrality intervals (from the most central 0-10% to the most peripheral 60-80% collisions). These spectra have been compared with the predictions of recent hydrodynamic models. In particular, the Krak{ó}w and EPOS models give a satisfactory description of the data, with the latter covering a wider pT range. Mid-rapidity yields, integrated over pT, have been determined. The hyperon-to-pion ratios are similar to those at RHIC: they rise smoothly with centrality up to ~ 150 and saturate thereafter. The enhancements (yields per participant nucleon relative to p-p collisions) increase both with the strangeness content of the baryon and with centrality, but are less pronounced than at lower energies.