A Study Of The Decay Properties Of The Charmed Baryon Charmed Positive Lambda Baryon PDF Download
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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 | : Catriona Elizabeth Kaye Charlesworth |
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Total Pages | : 102 |
Release | : 1992 |
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Download A Study of the Decay Properties of the Charmed Baryon [Lamda] C+. Book in PDF, ePub and Kindle
Author | : Richard George Van de Water |
Publisher | : |
Total Pages | : 286 |
Release | : 1993 |
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Download A Study of the Semileptonic Decay Properties of Charmed Baryons Book in PDF, ePub and Kindle
Author | : Eric James Mannel |
Publisher | : |
Total Pages | : 210 |
Release | : 1991 |
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Download Decay Properties of the Charm Baryon [Lambda] [subscript C] Book in PDF, ePub and Kindle
Author | : |
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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 | : Krishna Meher Podury |
Publisher | : |
Total Pages | : 94 |
Release | : 1994 |
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Download A Study of the Production and Properties of Charmed Baryons Book in PDF, ePub and Kindle
Author | : Song Yang |
Publisher | : |
Total Pages | : 0 |
Release | : 1993 |
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Download Charmed baryon [lambda][subscript]c+ decays with a [sigma]+ in the final state and decay asymmetry parameters Book in PDF, ePub and Kindle
Author | : Piotr Żenczykowski |
Publisher | : |
Total Pages | : 21 |
Release | : 1993 |
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Download Nonleptonics Charmed-baryon Decays Book in PDF, ePub and Kindle
Author | : Eric Nelson Vella |
Publisher | : |
Total Pages | : 256 |
Release | : 1982 |
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Download Charmed Baryon Decays Observed in E/e± Annihilation at SPEAR Book in PDF, ePub and Kindle
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