Production Of. Gamma. (9. 5) in Ee− Annihilation and Photoproduction. [Cross Sections]. PDF Download
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Assuming that the new resonance .gamma.(9.5) is a vector meson, its leptonic and hadronic decay widths are calculated in analogy to those of psi(3.1). Then, using the Breit-Wigner formula, the production cross section in ee− annihilation is predicted. The tensor dominance of the Pomeron, together with the vector dominance model, is invoked to estimate the photoproduction cross section.
![Production Of. Gamma. (9. 5) in Ee− Annihilation and Photoproduction. [Cross Sections]. PDF](https://books.google.com/books/content/images/frontcover/Z8PNwgEACAAJ?fife=w80-h100)
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Languages : en
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Book Description
Assuming that the new resonance .gamma.(9.5) is a vector meson, its leptonic and hadronic decay widths are calculated in analogy to those of psi(3.1). Then, using the Breit-Wigner formula, the production cross section in ee− annihilation is predicted. The tensor dominance of the Pomeron, together with the vector dominance model, is invoked to estimate the photoproduction cross section.
![Gamma and Pizero Production in Ee− Annihilation. [4. 9 to 7. 4 GeV (c. M.)]. PDF](https://books.google.com/books/content/images/frontcover/JKRJnQAACAAJ?fife=w80-h100)
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Languages : en
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Inclusive cross sections of .gamma.'s and .pi.° mesons in hadronic events produced by electron-positron annihilation for the center-of-mass energy range 4.9 to 7.4 GeV are presented. Scale invariance of the inclusive spectra is exhibited in this energy range, and their normalization and shape are seen to be consistent with those of spectra arising from the decay of the .pi.°. The fraction of center-of-mass energy carried away by the .gamma.'s at high energies is found to be = 0.24 +- 0.01. The .pi.° inclusive cross section is seen to be consistent in normalization and shape with half the charged-.pi. cross section between x = 0.15 and 0.75, with an integrated inclusive cross-section ratio of sigma(.pi.°)/(sigma(.pi.) + sigma(.pi.−)) = 0.48 +- 0.05. 60 figures, 7 tables.
Author: Walter Edward Ford
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Category : Gamma ray spectrometry
Languages : en
Pages : 94
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Author: Derrick Kong
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Category : Annihilation reactions
Languages : en
Pages : 280
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Author:
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Category : Nuclear energy
Languages : en
Pages : 596
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Author: Tang Lin
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Category :
Languages : en
Pages : 32
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Languages : en
Pages :
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Gamma production cross sections are presented as a function of l6 neutron lethargy groups and 11 photon energy groups for 13 elements and isotopes. They were computed by the program GAMMA-P and account for the production of gamma rays by neutron radiative capture, neutron inelastic scattering, neutron induced fissioning, and (n, alpha) reactions. (auth).
Author: J. K. Dickens
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Category : Cross sections
Languages : en
Pages : 31
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Category :
Languages : en
Pages : 4
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The photon plus heavy-flavour quark (b, c) final state provides a unique and valuable window into both the sea quark content of the proton and the splitting of gluons into heavy-flavour quark pairs. A new combination of experimental techniques has provided the basis for the first measurements of the differential [gamma] + c + X and [gamma] + b + X production cross sections at √s = 1.96 TeV. The measurements use ≈ 1 fb−1 of data from p{bar p} collisions collected with the D0 detector.
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Languages : en
Pages : 4
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The photon plus heavy-flavour quark (b, c) final state provides a unique and valuable window into both the sea quark content of the proton and the splitting of gluons into heavy-flavour quark pairs. A new combination of experimental techniques has provided the basis for the first measurements of the differential? + c + X and? + b + X production cross sections at √s = 1.96 TeV. The measurements use ≈ 1 fb−1 of data from p{bar p} collisions collected with the D0 detector.
