Asymmetry Studies in <math>Λ0/Λ0</math> , <math>-/+</math> and <math> Ω-/Ω+</math> Production

Nota de FísicaPublicado

Asymmetry Studies in $<math>\Lambda^0/\bar{\Lambda}^0</math>$ , $<math>\Xi^-/\Xi^+</math>$ and $<math> \Omega^-/\Omega^+</math>$ Production

J. dos Anjos; J. Magnin; Fernando Raimundo Aranha Simão; J. Solano

1998

Autores: J. dos Anjos; J. Magnin; Fernando Raimundo Aranha Simão; J. Solano
Tipo: Nota de Física
Status: Publicado
Data de publicação: 1998
Descrição: We present a study on hyperon/anti-hyperon production asymmetries in the framework of the recombination model. The production asymmetries for <math>\Lambda^0/\bar{\Lambda}^0\,\!</math> ,<math> \Xi^-/\Xi^+\,\!</math> and <math>\Omega^-/\Omega^+\,\!</math> are studied as a function of <math>x_F\,\!</math>. Predictions of the model are compared to preliminary data on hyperon/anti-hyperon production asymmetries in 500 GeV/c <math>\pi^-p\,\!</math> interactions from the Fermilab E791 experiment. The model predicts a growing asymmetry with the number of valence quarks shared by the target and the produced hyperons in the <math>x_F < 0\,\!</math> region. In the positive <math>x_F\,\!</math> region, the model predicts constant asymmetries for<math> \Lambda^0/\bar{\Lambda}^0\,\!</math> and <math>\Omega^-/\Omega^+\,\!</math> production and a growing asymmetry with <math>x_F\,\!</math> for <math>\Xi^-/\Xi^+\,\!</math> . We found a qualitatively good agreement between the model predictions and data, showing that recombination is a competitive mechanism in the hadronization process.
Ano: 1998
Número: CBPF-NF-045/98
Vínculo com tese: Não
Vínculo com bolsa: Não