The production of the strange and double-strange baryon resonances (Sigma+-(385), Csi0(1530)) has been measured at mid-rapidity (|y|<0.5) in proton-proton collisions at sqrt{sNN}= 7 TeV with the ALICE detector at the LHC. Transverse momentum spectra for inelastic collisions are compared to QCD-inspired models, which in general underpredict the data. A search for the [Formula: see text] pentaquark, decaying in the [Formula: see text] channel, has been carried out but no evidence is seen.

Production of Sigma(1385)± and Csi(1530) in proton-proton collisions at \sqrt{sNN} 7 TeV

BEOLE', Stefania;BERZANO, DARIO CARLO DOMENICO;BIANCHI, LIVIO;BOTTA, Elena;BUFALINO, STEFANIA;CORRALES MORALES, YASSER;FERRETTI, Alessandro;GAGLIARDI, Martino;GALLIO, Mauro;LATTUCA, ALESSANDRA;LEONCINO, MARCO;MARCHISONE, MASSIMILIANO;MASERA, Massimo;PUCCIO, MAXIMILIANO;RUSSO, RICCARDO;VALLERO, Sara;VERCELLIN, Ermanno;
2015-01-01

Abstract

The production of the strange and double-strange baryon resonances (Sigma+-(385), Csi0(1530)) has been measured at mid-rapidity (|y|<0.5) in proton-proton collisions at sqrt{sNN}= 7 TeV with the ALICE detector at the LHC. Transverse momentum spectra for inelastic collisions are compared to QCD-inspired models, which in general underpredict the data. A search for the [Formula: see text] pentaquark, decaying in the [Formula: see text] channel, has been carried out but no evidence is seen.
2015
75
1
1
1
Sigma+-(385), Csi0(1530) production, pp collisions
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