We search for strange-pentaquark states that have been previously reported by other experiments-the Θ(1540)+, Ξ5(1860) - , and Ξ5(1860)0-in 123fb-1 of data recorded with the BABAR detector at the PEP-II e+e- storage ring. We find no evidence for these states and set 95% confidence level upper limits on the number of Θ(1540)+ and Ξ5(1860) - pentaquarks produced per e+e- annihilation into qq̄ and per Υ(4S) decay. For qq̄ events the Θ(1540)+ [Ξ5(1860) - ] limit is about 8 [4] times lower than the rates measured for ordinary baryons of similar mass. © 2005 The American Physical Society.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2005). Search for strange-pentaquark production in e+e- annihilation at s=10.58GeV. PHYSICAL REVIEW LETTERS, 95(4), 1-7 [10.1103/PhysRevLett.95.042002].

Search for strange-pentaquark production in e+e- annihilation at s=10.58GeV

PATRIGNANI, CLAUDIA;
2005

Abstract

We search for strange-pentaquark states that have been previously reported by other experiments-the Θ(1540)+, Ξ5(1860) - , and Ξ5(1860)0-in 123fb-1 of data recorded with the BABAR detector at the PEP-II e+e- storage ring. We find no evidence for these states and set 95% confidence level upper limits on the number of Θ(1540)+ and Ξ5(1860) - pentaquarks produced per e+e- annihilation into qq̄ and per Υ(4S) decay. For qq̄ events the Θ(1540)+ [Ξ5(1860) - ] limit is about 8 [4] times lower than the rates measured for ordinary baryons of similar mass. © 2005 The American Physical Society.
2005
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2005). Search for strange-pentaquark production in e+e- annihilation at s=10.58GeV. PHYSICAL REVIEW LETTERS, 95(4), 1-7 [10.1103/PhysRevLett.95.042002].
Aubert, B; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges-Pous, E.; Palano, A.; P...espandi
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/551699
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 34
  • ???jsp.display-item.citation.isi??? 32
social impact