Branching Ratio for Pion-beta Decay: [pi]+ --> [pi]0 + [epsilon]+ + [gamma] PDF Download
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![Branching Ratio for Pion-beta Decay: [pi]+ --> [pi]0 + [epsilon]+ + [gamma] PDF](https://books.google.com/books/content/images/frontcover/g2eZVNhHjr8C?fife=w150-h200)
Author: Robert Bruce Bacastow
Publisher:
ISBN:
Category :
Languages : en
Pages : 62
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![Branching Ratio for Pion-beta Decay: [pi]+ --> [pi]0 + [epsilon]+ + [gamma] PDF](https://books.google.com/books/content/images/frontcover/g2eZVNhHjr8C?fife=w80-h100)
Author: Robert Bruce Bacastow
Publisher:
ISBN:
Category :
Languages : en
Pages : 62
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Author: David F. Bartlett
Publisher:
ISBN:
Category : Beta rays
Languages : en
Pages : 116
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The conserved vector current theory predicts that the branching ratio for the decay of a charged pion into a neutral pion is (1.05=0.02)x10 to the -8th power, if the coupling constant is derived from muon decay, or (1.00=0.02)x10 to the -8th power, if the coupling constant is derived from nuclear beta decay. Using spark chambers to distinguish the nearly anticollinear gamma rays from pi(+) beta decay from a background of other gamma rays, we have found 36 events and have measured the branching ratio to be (0.97=0.20)x10 to the -8th power, in agreement with the theoretical prediction and previous measurements. The method of background subtraction (approximately 10%) depends only on knowing that the background is isotropic for gamma rays having opening angles between 160 degrees and 180 degrees. (Author).
Author: Robert B. Bacastow
Publisher:
ISBN:
Category :
Languages : en
Pages : 50
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![A New Branching Ratio Measurement of the Pion Beta-decay [pi]+[right Arrow][pi]0+e++[nu]e PDF](https://books.google.com/books/content/images/frontcover/6irnHAAACAAJ?fife=w80-h100)
Author: Francois Charles Gaille
Publisher:
ISBN:
Category : Branching ratios (Nuclear physics)
Languages : en
Pages : 560
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![A Measurement of the [Pi]?e2 Branching Ratio and a Feasibility Study of a New Precision Approach to Measuring the Pion Beta Decay Branching Ratio PDF](https://books.google.com/books/content/images/frontcover/D5ujPgAACAAJ?fife=w80-h100)
Author: Edward Alan Wadlinger
Publisher:
ISBN:
Category :
Languages : en
Pages : 474
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Author: Alan Strelzoff
Publisher:
ISBN:
Category : Branching ratios (Nuclear physics)
Languages : en
Pages : 66
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The ratio of the pion decay rates for the processes, pi yields e + nu and pi yields mu + nu was measured. A large NaI (tl) crystal was used to separate the high energy pion decay electrons from the continuous spectrum of the pi-mu-e chain. Counting decay electrons immediately following a pion stop, the ratio by a direct comparison of pi-e and pi-mu-e electrons was determined. From an observed 10,891 pi-e electrons a precision of 1.8% was attained in the guantity (pion lifetime x branching ratio). Considering the present uncertainty in the pion lifetime the branching ratio, (1.247 = 0.028) x 10 to the -4 power is obtained. This is in good agreement with the theoretical value, 1.233 x 10 to the -4 power, required by the V-A theory when radiative corrections are included. (Author).
Author: Kétévi Adiklè Assamagan
Publisher:
ISBN:
Category :
Languages : en
Pages : 500
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Author: WILLIAM KEITH BERTRAM
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ISBN:
Category :
Languages : en
Pages : 57
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1330
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Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 934
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