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Category :
Languages : en
Pages : 14
Book Description
Threshold Neutral Pion Photoproduction in Hydrodgen [hydrogen] and Deuterium
Author:
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Category :
Languages : en
Pages : 14
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Photoproduction of Neutral Pions from Hydrogen Near Threshold
Author: John Joseph Russell
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Category :
Languages : en
Pages : 82
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 82
Book Description
Photoproduction of Positive Pions From Hydrogen and Deuterium Near Threshold
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Category :
Languages : en
Pages :
Book Description
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Category :
Languages : en
Pages :
Book Description
Neutral Pion and Eta Photoproduction from Hydrogen at High Energies
Author: James Russell Johnson
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ISBN:
Category :
Languages : en
Pages : 214
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 214
Book Description
Photoproduction of Positive Pions from Hydrogen Near Threshold
Author: Maurice Jacques Bazin
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Category :
Languages : en
Pages : 348
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 348
Book Description
PHOTOPRODUCTION OF NEUTRAL PIONS IN HYDROGEN AND DEUTERIUM.
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Category :
Languages : en
Pages :
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Category :
Languages : en
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Book Description
Two Topics in Pion Physics. I. Photoproduction of Neutral Pions from Complex Nuclei and the Pair-Correlation Function. II. the Relative Rate of Absorption of Negative Pions in Hydrogen and Deuterium (thesis).
Author:
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ISBN:
Category :
Languages : en
Pages :
Book Description
A simple theory of the photoproduction of pi /sup 0/ mesons from complex nuclei based on the impulse and closure approximation is studied. The theory is compared with an experiment of Goodwin, Anderson, and Kenney that shows the dependence of the number of decay gammas from pi /sup 0/ mesons photo- produced from various nuclei as a function of the atomic number at 45, 90, and 135 degrees for incident photon energies from threshold to 350 Mev. The dependence measured near threshold and at 45 degrees does not agree with the simple theory nor is it consistent with partial elastic production. By a method of Placzek and Wick the corrections to the simple theory are estimated, and found to be large near threshold. These corrections may explain the discrepancy between the theory and the experimental results. No information about the nuclear-pair correlation function is obtained. The impulse approximation is used to calculate the relative ratio of the radiative absorption rate of pi /sup -/ mesons absorbed in hydrogen and deuterium from an atomic s state. The calculated value of the ratio T = R(pi /sup -/ + d yields 2n + gamma)/R(pi /sup -/ + p yields n + gamma) is 0.83 plus or minus 0.08. The experimental value is 0.41 plus or minus 0.06. The closure approximation is used to evaluate T. By a method due to Placzek the error due to the closure approximation is shown to be small. (auth).
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A simple theory of the photoproduction of pi /sup 0/ mesons from complex nuclei based on the impulse and closure approximation is studied. The theory is compared with an experiment of Goodwin, Anderson, and Kenney that shows the dependence of the number of decay gammas from pi /sup 0/ mesons photo- produced from various nuclei as a function of the atomic number at 45, 90, and 135 degrees for incident photon energies from threshold to 350 Mev. The dependence measured near threshold and at 45 degrees does not agree with the simple theory nor is it consistent with partial elastic production. By a method of Placzek and Wick the corrections to the simple theory are estimated, and found to be large near threshold. These corrections may explain the discrepancy between the theory and the experimental results. No information about the nuclear-pair correlation function is obtained. The impulse approximation is used to calculate the relative ratio of the radiative absorption rate of pi /sup -/ mesons absorbed in hydrogen and deuterium from an atomic s state. The calculated value of the ratio T = R(pi /sup -/ + d yields 2n + gamma)/R(pi /sup -/ + p yields n + gamma) is 0.83 plus or minus 0.08. The experimental value is 0.41 plus or minus 0.06. The closure approximation is used to evaluate T. By a method due to Placzek the error due to the closure approximation is shown to be small. (auth).
Pion Photoproduction on Hydrogen and Deuterium
Author: Laura S. Wiener
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ISBN:
Category :
Languages : en
Pages : 212
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 212
Book Description
Nuclear Science Abstracts
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Category : Nuclear energy
Languages : en
Pages : 680
Book Description
Publisher:
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Category : Nuclear energy
Languages : en
Pages : 680
Book Description
Neutral Pion Photoproduction from Hydrogen and Measurement of the Syncrotron Spectrum
Author: Thomas Jefferson Ising
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ISBN:
Category :
Languages : en
Pages : 40
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
Book Description