Hadron Production By Ee Annihilation At Center Of Mass Energies Between 2 6 And 7 8 Gev PDF Download
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Release | : 1979 |
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Download Hadron Production by Ee− Annihilation at Center-of-mass Energies Between 2. 6 and 7. 8 GeV. Book in PDF, ePub and Kindle
Results are presented on multihadron production by ee− annihilation from the Mark I and Mark II detectors at SPEAR. Other than the narrow resonances psi (3095) and psi' (3684), the total hadronic cross section varies between 36.5 and 6.4 nb over the center-of-mass energy range 2.6 to 7.8 GeV with complicated structure near 4.1 GeV not completely resolved by these measurements. Evidence for scaling of inclusive momentum distributions of hadrons is presented.
Author | : James Leon Siegrist |
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Total Pages | : 348 |
Release | : 1979 |
Genre | : Hadrons |
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Download Hadron Production by E+e− Annihilation at Center-of-mass Energies Between 2.6 and 7.8 GeV Book in PDF, ePub and Kindle
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Release | : 1984 |
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Download Inclusive Hadron Production and Two Particle Correlations in Ee− Annihilation at 29 GeV Center-of-mass Energy Book in PDF, ePub and Kindle
We have studied hadron production in ee− annihilation at 29 GeV center-of-mass energy using the PEP-4 Time Projection Chamber Detector. The inclusive cross sections and mean multiplicities for .pi./sup + -/, K/sup + -/ and (p + anti p) production have been measured using ionization energy loss to separate particle species. We find on average 10.7 +- 0.6 .pi./sup + -/, 1.35 +- 13 K/sup + -/ and 0.60 +- 0.08 (p + anti p) per multihadron event. The differential cross section is well described by a number of Monte Carlo hadronization models. In addition, we have observed correlations in rapidity space for identified pions and kaons. Short-range KK correlations provide evidence for local flavor compensation during hadronization. Long-range .pi pi. and KK correlations indicate that the initial partons carry flavor. We also observe significant long-range .pi. K correlations as a result of heavy quark decays. 85 references, 67 figures, 11 tables.
Author | : Giora Jorge Tarnopolsky |
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Total Pages | : 316 |
Release | : 1973 |
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Download Hadron Production by Electron-positron Annihilation at 4-GeV Center-of-mass Energy Book in PDF, ePub and Kindle
Author | : S. L. Kramer |
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Total Pages | : 432 |
Release | : 1975 |
Genre | : Hadron spectroscopy |
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Download New Directions in Hadron Spectroscopy Book in PDF, ePub and Kindle
Author | : Joseph Che-Kit Leong |
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Total Pages | : 364 |
Release | : 1974 |
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Download Hadron Production by Electron Positron Annihilation at 5 GeV Center-of-mass Energy Book in PDF, ePub and Kindle
Author | : Petros-Afentoulis Rapidis |
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Total Pages | : 228 |
Release | : 1979 |
Genre | : Annihilation reactions |
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Download D Meson Production in E+e− Annihilation Book in PDF, ePub and Kindle
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Total Pages | : 1148 |
Release | : 1974 |
Genre | : Nuclear energy |
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Download Nuclear Science Abstracts Book in PDF, ePub and Kindle
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Release | : 1982 |
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Download Total and Inclusive Hadron Production by Ee− Annihilation At. Sqrt. S Book in PDF, ePub and Kindle
Measurements are presented of R, the ratio of the total hadronic cross section to the cross section for mu pair production, and of the inclusive charged particle momentum distribution so sigma/dx for e/sup +/e− annihilation at center of mass energies of 5.2, 6.5, and 29.0 GeV. The ratio R is found to be approximately 3.9, consistent with quark-parton model expectations, at each of the three energies with an estimated systematic uncertainty of 6%. The inclusive cross sections show significant deviation from the scaling behavior predicted by the quark-parton model.
Author | : DASP Collaboration |
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Total Pages | : 8 |
Release | : 1978 |
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Download Total Cross Section for Hadron Production by E+e--annihilation at Center of Mass Energies Between 3.6 and 5.2 GeV. Book in PDF, ePub and Kindle