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Title: Study of heavy flavored particles. Progress report

Abstract

This report discusses progress on the following topics: time-of- flight system; charmed baryon production and decays; D decays to baryons; measurement of sigma plus particles magnetic moments; and strong interaction coupling. (LSP)

Publication Date:
Research Org.:
State Univ. of New York, Albany, NY (United States). Research Foundation
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10116970
Report Number(s):
DOE/ER/40631-T1
ON: DE92007060
DOE Contract Number:
FG02-91ER40631
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: [1991]
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHARMED BARYONS; PARTICLE PRODUCTION; WEAK PARTICLE DECAY; B MESONS; SIGMA PLUS PARTICLES; MAGNETIC MOMENTS; PROGRESS REPORT; FLAVOR MODEL; TIME-OF-FLIGHT METHOD; LAMBDA C PLUS BARYONS; STRONG INTERACTIONS; XI BARYONS; SIGMA BARYONS; 662360; 662350; 662240; 662410; 662420; DECAYS OF BARYONS; DECAYS OF MESONS; MODELS FOR STRONG INTERACTIONS; PROPERTIES OF BARYONS AND BARYON RESONANCES; PROPERTIES OF MESONS AND MESON RESONANCES

Citation Formats

Not Available. Study of heavy flavored particles. Progress report. United States: N. p., 1991. Web. doi:10.2172/10116970.
Not Available. Study of heavy flavored particles. Progress report. United States. doi:10.2172/10116970.
Not Available. 1991. "Study of heavy flavored particles. Progress report". United States. doi:10.2172/10116970. https://www.osti.gov/servlets/purl/10116970.
@article{osti_10116970,
title = {Study of heavy flavored particles. Progress report},
author = {Not Available},
abstractNote = {This report discusses progress on the following topics: time-of- flight system; charmed baryon production and decays; D decays to baryons; measurement of sigma plus particles magnetic moments; and strong interaction coupling. (LSP)},
doi = {10.2172/10116970},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1991,
month =
}

Technical Report:

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  • Progress is reported on the discovery of a new baryon called neutral cascade with charm. The decay fractions of other charmed baryons such as ..lambda../sub c//sup +/ are also studied. The completion of a time-of-flight detector for the CLEO collaboration is reported. A new experiment to measure the magnetic moment of the sigma plus particle using bent crystal is now in preparation at Fermilab.
  • The program of physics analysis using CLEO II data is reported. A statistically significant measurement was made of the isospin mass splitting of the {Sigma}{sub c}{sup +} with respect to the {Sigma}{sub c}{sup o} and {Sigma}{sub c}{sup ++}. This result is based on first observation of the {Sigma}{sub c}{sup +} in the decay mode {Lambda}{sub c}{sup +}{pi}{sup 0}. Many new decay modes of the charmed baryon {Lambda}{sub c}{sup +} were studied. Several new decay modes of {xi}{sub c}`s. Some preliminary results on 3 new modes of {Omega}{sub c}{sup 0} decay are reported. In the area of B-meson decay into baryons,more » were observed conclusively the decays B {yields} {Sigma}{sub c}{sup 0} and {Sigma}{sub c}{sup ++}. From about 1500 events corresponding to B {yields} {Lambda}{sub c}{sup +}X reconstruction of exclusive final states of the form {Lambda}{sub c}{sup +}(n{pi}) was started. A comprehensive investigation of particle identification using both the time-of-flight and dE/dx systems was made. Measurement of pion, kaon and proton identification efficiencies have been made, corresponding to several different selection criteria. Measurements of corresponding pion probabilities to fake kaons nd protons have also been made.« less
  • The program of physics analysis using CLEO II data is reported. A statistically significant measurement was made of the isospin mass splitting of the [Sigma][sub c][sup +] with respect to the [Sigma][sub c][sup o] and [Sigma][sub c][sup ++]. This result is based on first observation of the [Sigma][sub c][sup +] in the decay mode [Lambda][sub c][sup +][pi][sup 0]. Many new decay modes of the charmed baryon [Lambda][sub c][sup +] were studied. Several new decay modes of [xi][sub c]'s. Some preliminary results on 3 new modes of [Omega][sub c][sup 0] decay are reported. In the area of B-meson decay into baryons,more » were observed conclusively the decays B [yields] [Sigma][sub c][sup 0] and [Sigma][sub c][sup ++]. From about 1500 events corresponding to B [yields] [Lambda][sub c][sup +]X reconstruction of exclusive final states of the form [Lambda][sub c][sup +](n[pi]) was started. A comprehensive investigation of particle identification using both the time-of-flight and dE/dx systems was made. Measurement of pion, kaon and proton identification efficiencies have been made, corresponding to several different selection criteria. Measurements of corresponding pion probabilities to fake kaons nd protons have also been made.« less
  • This report discusses progress on the following topics: time-of- flight system; charmed baryon production and decays; D decays to baryons; measurement of sigma plus particles magnetic moments; and strong interaction coupling. (LSP)