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Title: Inclusive Rates and Spectra of the Lambda, Cascade, and Omega Hyperons atBaBar

Abstract

We employ Runs 1-4 off-peak data sample (about 21.5 fb-1) to produce the current world-best spectra and production rates measurements for three strangely-flavored baryons: the Λ hyperon, the cascade hyperon, and the Ω hyperon. These improved measurements shall enable theoretical and phenomelogical workers to generate more realistic models for the hadronization process, currently one of the unresolved problem areas in the standard model of particle physics. This analysis was conducted using codes from release 16 series. We report the production rate at 10.54 GeV for the Λ as 0.0900 ± 0.0006(stat.) ± 0.0039(sys.) per hadronic event. Our measured production rate at the same energy for the cascade hyperon is 0.00562 ± 0.00013(stat.) ± 0.00045(sys.) per hadronic event, while that for the Ω hyperon is 0.00027 ± 0.00004(stat.) ± 0.0008(sys.) per hadronic event. The spectral measurements for the respective particles also constitute current world-best measurements.

Authors:
 [1]
  1. Stanford Univ., CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
928735
Report Number(s):
SLAC-R-899
TRN: US0803303
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BARYONS; HYPERONS; PHYSICS; PRODUCTION; SPECTRA; STANDARD MODEL; Experiment-HEP; HEPEX; HEPPH

Citation Formats

Chien, Andrew L. Inclusive Rates and Spectra of the Lambda, Cascade, and Omega Hyperons atBaBar. United States: N. p., 2008. Web. doi:10.2172/928735.
Chien, Andrew L. Inclusive Rates and Spectra of the Lambda, Cascade, and Omega Hyperons atBaBar. United States. https://doi.org/10.2172/928735
Chien, Andrew L. 2008. "Inclusive Rates and Spectra of the Lambda, Cascade, and Omega Hyperons atBaBar". United States. https://doi.org/10.2172/928735. https://www.osti.gov/servlets/purl/928735.
@article{osti_928735,
title = {Inclusive Rates and Spectra of the Lambda, Cascade, and Omega Hyperons atBaBar},
author = {Chien, Andrew L.},
abstractNote = {We employ Runs 1-4 off-peak data sample (about 21.5 fb-1) to produce the current world-best spectra and production rates measurements for three strangely-flavored baryons: the Λ hyperon, the cascade hyperon, and the Ω hyperon. These improved measurements shall enable theoretical and phenomelogical workers to generate more realistic models for the hadronization process, currently one of the unresolved problem areas in the standard model of particle physics. This analysis was conducted using codes from release 16 series. We report the production rate at 10.54 GeV for the Λ as 0.0900 ± 0.0006(stat.) ± 0.0039(sys.) per hadronic event. Our measured production rate at the same energy for the cascade hyperon is 0.00562 ± 0.00013(stat.) ± 0.00045(sys.) per hadronic event, while that for the Ω hyperon is 0.00027 ± 0.00004(stat.) ± 0.0008(sys.) per hadronic event. The spectral measurements for the respective particles also constitute current world-best measurements.},
doi = {10.2172/928735},
url = {https://www.osti.gov/biblio/928735}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2008},
month = {Tue Jan 01 00:00:00 EST 2008}
}

Thesis/Dissertation:
Other availability
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