Inclusive rates and spectra of the lambda, cascade, and omega hyperons at BaBar. Andrew Lawrence Chien

ISBN: 9780549724131

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252 pages


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Inclusive rates and spectra of the lambda, cascade, and omega hyperons at BaBar.  by  Andrew Lawrence Chien

Inclusive rates and spectra of the lambda, cascade, and omega hyperons at BaBar. by Andrew Lawrence Chien
| NOOKstudy eTextbook | PDF, EPUB, FB2, DjVu, audiobook, mp3, RTF | 252 pages | ISBN: 9780549724131 | 3.55 Mb

In this dissertation we employ a large data sample to produce the current world-best spectra and production rates measurements for three strangely-flavored baryons: the Λ hyperon, the cascade hyperon, and the O hyperon. These improved measurementsMoreIn this dissertation we employ a large data sample to produce the current world-best spectra and production rates measurements for three strangely-flavored baryons: the Λ hyperon, the cascade hyperon, and the O 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.-We employ 21.5 fb-1 of e +e- collisional data collected at a center of mass energy of 10.54 GeV by the BaBar detector located at the Stanford Linear Accelerator Centers PEP-II asymmetric B Factory.-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 O hyperon is 0.00030 +/- 0.00005(stat.) +/- 0.00010(sys.) per hadronic event. The spectral measurements for the respective particles also constitute current world-best measurements.



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