Abstract
This thesis is dedicated to the study of the {Lambda}{sub c}{sup +} charmed baryon and to the ``Pentaquark`` search, within the framework of the CERN WA89 experiment. This fixed target experiment is using a 330 GeV/c hyperon beam. Its aim is the production and the study of baryons carrying charm and strangeness as well as the search of multiquarks. The experimental setup is built around the CERN Omega spectrometer. Production and decay vertices of charmed particles are reconstructed by means of microstrip detectors. Multiwire proportional chambers reconstruct the trajectories in the Omega magnetic field and particle identification is provided by a Ring Imaging Cherenkov detector. An invariant mass signal has been obtained for the {Lambda}{sub c}{sup +} in the proton-kaon-pion decay channel. Distorsion effects occurring in the event reconstruction have been taken into account in the estimation of the {Lambda}{sub c}{sup +} lifetime and production cross-section. Finally, the exotic multiquark state ``Pentaquark`` was investigated in the channel proton-phi-pion but no signal was observed. (author). 86 refs., 56 figs.
Citation Formats
Charignon, F.
Study of {Lambda}{sup +}{sub c} production and Pentaquark search in WA89 CERN experiment data; Etude de la production du {Lambda}{sup +}{sub c} et recherche du Pentaquark dans les donnees de l`experience WA89 du CERN.
France: N. p.,
1995.
Web.
Charignon, F.
Study of {Lambda}{sup +}{sub c} production and Pentaquark search in WA89 CERN experiment data; Etude de la production du {Lambda}{sup +}{sub c} et recherche du Pentaquark dans les donnees de l`experience WA89 du CERN.
France.
Charignon, F.
1995.
"Study of {Lambda}{sup +}{sub c} production and Pentaquark search in WA89 CERN experiment data; Etude de la production du {Lambda}{sup +}{sub c} et recherche du Pentaquark dans les donnees de l`experience WA89 du CERN."
France.
@misc{etde_189699,
title = {Study of {Lambda}{sup +}{sub c} production and Pentaquark search in WA89 CERN experiment data; Etude de la production du {Lambda}{sup +}{sub c} et recherche du Pentaquark dans les donnees de l`experience WA89 du CERN}
author = {Charignon, F}
abstractNote = {This thesis is dedicated to the study of the {Lambda}{sub c}{sup +} charmed baryon and to the ``Pentaquark`` search, within the framework of the CERN WA89 experiment. This fixed target experiment is using a 330 GeV/c hyperon beam. Its aim is the production and the study of baryons carrying charm and strangeness as well as the search of multiquarks. The experimental setup is built around the CERN Omega spectrometer. Production and decay vertices of charmed particles are reconstructed by means of microstrip detectors. Multiwire proportional chambers reconstruct the trajectories in the Omega magnetic field and particle identification is provided by a Ring Imaging Cherenkov detector. An invariant mass signal has been obtained for the {Lambda}{sub c}{sup +} in the proton-kaon-pion decay channel. Distorsion effects occurring in the event reconstruction have been taken into account in the estimation of the {Lambda}{sub c}{sup +} lifetime and production cross-section. Finally, the exotic multiquark state ``Pentaquark`` was investigated in the channel proton-phi-pion but no signal was observed. (author). 86 refs., 56 figs.}
place = {France}
year = {1995}
month = {Jan}
}
title = {Study of {Lambda}{sup +}{sub c} production and Pentaquark search in WA89 CERN experiment data; Etude de la production du {Lambda}{sup +}{sub c} et recherche du Pentaquark dans les donnees de l`experience WA89 du CERN}
author = {Charignon, F}
abstractNote = {This thesis is dedicated to the study of the {Lambda}{sub c}{sup +} charmed baryon and to the ``Pentaquark`` search, within the framework of the CERN WA89 experiment. This fixed target experiment is using a 330 GeV/c hyperon beam. Its aim is the production and the study of baryons carrying charm and strangeness as well as the search of multiquarks. The experimental setup is built around the CERN Omega spectrometer. Production and decay vertices of charmed particles are reconstructed by means of microstrip detectors. Multiwire proportional chambers reconstruct the trajectories in the Omega magnetic field and particle identification is provided by a Ring Imaging Cherenkov detector. An invariant mass signal has been obtained for the {Lambda}{sub c}{sup +} in the proton-kaon-pion decay channel. Distorsion effects occurring in the event reconstruction have been taken into account in the estimation of the {Lambda}{sub c}{sup +} lifetime and production cross-section. Finally, the exotic multiquark state ``Pentaquark`` was investigated in the channel proton-phi-pion but no signal was observed. (author). 86 refs., 56 figs.}
place = {France}
year = {1995}
month = {Jan}
}