Large samples of Lambda, Sigma(1385) and Xi(1321) hyperons produced in the deep-inelastic muon scattering off a (LiD)-Li-6 target were collected with the COMPASS experimental setup at CERN. The relative yields of Sigma(1385)(+), Sigma(1385)(-), Sigma(1385)(-), Sigma(1385)(+), Xi(1321)(-), and Xi(1321)(+) hyperons decaying into Lambda(Lambda)pi were measured. The ratios of heavy-hyperon to Lambda and heavy-antihyperon to Lambda were found to be in the range 3.8 % to 5.6 % with a relative uncertainty of about 10 %. They were used to tune the parameters relevant for strange particle production of the LEPTO Monte Carlo generator.

Study of Σ(1385) and Ξ(1321) hyperon and antihyperon production in deep inelastic muon scattering

AMOROSO, Antonio;BALESTRA, Ferruccio;BERTINI, Raimondo Pietro;CHIOSSO, Michela;GARFAGNINI, Raffaello;GNESI, IVAN;GRASSO, Antonino;PIRAGINO, Guido;SOSIO, Stefano;
2013-01-01

Abstract

Large samples of Lambda, Sigma(1385) and Xi(1321) hyperons produced in the deep-inelastic muon scattering off a (LiD)-Li-6 target were collected with the COMPASS experimental setup at CERN. The relative yields of Sigma(1385)(+), Sigma(1385)(-), Sigma(1385)(-), Sigma(1385)(+), Xi(1321)(-), and Xi(1321)(+) hyperons decaying into Lambda(Lambda)pi were measured. The ratios of heavy-hyperon to Lambda and heavy-antihyperon to Lambda were found to be in the range 3.8 % to 5.6 % with a relative uncertainty of about 10 %. They were used to tune the parameters relevant for strange particle production of the LEPTO Monte Carlo generator.
2013
73
2581-1
2581-9
CHARGED CURRENT INTERACTIONS; (LAMBDA)OVER-BAR POLARIZATION; COMPASS
C. Adolph;M. G. Alekseev;V. Y. Alexakhin;Y. Alexandrov;G. D. Alexeev;A. Amoroso;A. Austregesilo;B. Badełek;F. Balestra;J. Barth;G. Baum;Y. ...espandi
File in questo prodotto:
File Dimensione Formato  
EPJC73_2581.pdf

Accesso riservato

Tipo di file: PDF EDITORIALE
Dimensione 570.66 kB
Formato Adobe PDF
570.66 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

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/2318/148766
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 6
social impact