A Study Of The Decay Properties Of The Charmed Baryon Lamda C PDF Download
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Author | : Catriona Elizabeth Kaye Charlesworth |
Publisher | : |
Total Pages | : 102 |
Release | : 1992 |
Genre | : |
ISBN | : |
Download A Study of the Decay Properties of the Charmed Baryon [Lamda] C+. Book in PDF, ePub and Kindle
Author | : C.E.K. Charlesworth |
Publisher | : |
Total Pages | : 0 |
Release | : 1992 |
Genre | : |
ISBN | : |
Download A Study of the Decay Properties of the Charmed Baryon Charmed Positive Lambda Baryon Book in PDF, ePub and Kindle
The charmed baryon $\Lambda\sbsp{c}{+}$ has been observed using the ARGUS detector in the DORIS II $e\sp{+}e\sp-$ storage ring at DESY. The ARGUS experiment is a 4$\pi$ magnetic solenoidal detector used to observe $e\sp{+}e\sp-$ annihilations at center-of-mass energies around 10.4 GeV. We have studied 5 decays modes of the $\Lambda\sbsp{c}{+}$. The decay mode $\Lambda\sbsp{c}{+}\to pK\sp-\pi\sp+$ was used to measure the $\Lambda\sbsp{c}{+}$ fragmentation properties. A value of 0.24 $\pm$ 0.04 was found for the Peterson et al. parameter $\epsilon$, and the $\sigma(\Lambda\sbsp{c}{+}$) $\cdot\ BR(\Lambda\sbsp{c}{+}\to pK\sp-\pi\sp+$) was measured to be 12.0 $\pm$ 1.1 $\pm$ 1.3) pb. The decay modes $\Lambda\sbsp{c}{+}\to\Lambda\pi\sp+$ and $\Lambda\sbsp{c}{+}\to\Sigma\sp0\pi\sp+$ were also studied. In the former the asymmetry parameter $\alpha\sb{\Lambda\sb{c}}$ was measured to be $-$1.0 $\pm$ 0.5, indicating that parity is maximally violated in this decay. The two production cross section times branching ratios were measured to be (2.2 $\pm$ 0.3 $\pm$ 0.3) pb and (2.0 $\pm$ 0.7 $\pm$ 0.3) pb respectively. Finally, a search was made for evidence of W-exchange in the decay $\Lambda\sbsp{c}{+}\to\Xi\sp-K\sp+\pi\sp+$. This final state can arise through a simple spectator decay or via the more exotic W-exchange decay into $\Xi\sp{*0}K\sp+$, where the $\Xi\sp{*0}$ subsequently decays into $\Xi\sp-\pi\sp+$. The two body rate was measured to be (35 $\pm$ 17)% of the three body rate, indicating that a significant portion of the $\Xi\sp-K\sp+\pi\sp+$ final state may occur via W-exchange.
Author | : Eric James Mannel |
Publisher | : |
Total Pages | : 210 |
Release | : 1991 |
Genre | : |
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Download Decay Properties of the Charm Baryon [Lambda] [subscript C] Book in PDF, ePub and Kindle
Author | : Richard George Van de Water |
Publisher | : |
Total Pages | : 286 |
Release | : 1993 |
Genre | : |
ISBN | : |
Download A Study of the Semileptonic Decay Properties of Charmed Baryons Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : |
Release | : 2001 |
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Download Production and Decay of the Lambda C Charmed Baryon from Fermilab E791 Book in PDF, ePub and Kindle
Results are presented for the 500 GeV/c pion production asymmetry and polarization of the [Lambda]{sub c} ({bar [Lambda]}{sub c}) charmed baryon from Fermilab experiment E791. An analysis of the decay to the p{bar K}[pi] final state is described. Resonant sub-channel fractions and phases are given and possible resonant effects in the low mass p{bar K} system discussed. Significant decay to {Lambda}{sub c} → [Delta]2K− establishes for the first time the importance of a W exchange mechanism in charmed baryon decay.
Author | : Jiu Zheng |
Publisher | : |
Total Pages | : 262 |
Release | : 1999 |
Genre | : Baryons |
ISBN | : |
Download Studies of Charmed Baryons Decaying to Lambda+C (n Pi) Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 786 |
Release | : 1990 |
Genre | : Nuclear physics |
ISBN | : |
Download High Energy Physics Index Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 840 |
Release | : 1990 |
Genre | : Power resources |
ISBN | : |
Download Energy Research Abstracts Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 14 |
Release | : 2005 |
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Download Study of Lambda+(c) Cabibbo Favored Decays Containing a Lambda Baryon in the Final State Book in PDF, ePub and Kindle
Using data from the FOCUS experiment (FNAL-E831), they study the decay of ?{sub c}+ baryons into final states contain a ? hyperon. The branching fractions of ?{sub c}+ into ??+, ??+?+?− and ?{bar K}°K+ relative to that into pK− ?+ are measured to be 0.217 ± 0.013 ± 0.020, 0.508 ± 0.024 ± 0.024 and 0.142 ± 0.018 ± 0.022, respectively. New measurements are also reported. Further, an analysis of the subresonant structure for the ?{sub c}+ → ??+?+?− decay mode is presented.
Author | : Brian Aa Petersen |
Publisher | : |
Total Pages | : 8 |
Release | : 2006 |
Genre | : |
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Download Study of Charm Baryons with the BaBar Experiment Book in PDF, ePub and Kindle
The authors report on several studies of charm baryon production and decays by the BABAR collaboration. They confirm previous observations of the {Xi}'{sub c}{sup 0/+}, {Xi}{sub c}(2980){sup +} and {Xi}{sub c}(3077){sup +} baryons, measure branching ratios for Cabibbo-suppressed {Lambda}{sub c}{sup +} decays and use baryon decays to study the properties of the light-quark baryons, {Omega}{sup -} and {Xi}(1690){sup 0}.