Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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.
Inclusive Hadron Production and Two Particle Correlations in Ee− Annihilation at 29 GeV Center-of-mass Energy
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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.
Inclusive Distributions and Two Particle Correlations in E+e± Annihilation at 29 GeV Center-of-mass Energy
Author: Marjorie Shapiro
Publisher:
ISBN:
Category :
Languages : en
Pages : 332
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 332
Book Description
Energy Research Abstracts
Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 1226
Book Description
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1226
Book Description
Hadron Production by E+e− Annihilation at Center-of-mass Energies Between 2.6 and 7.8 GeV
Author: James Leon Siegrist
Publisher:
ISBN:
Category : Hadrons
Languages : en
Pages : 348
Book Description
Publisher:
ISBN:
Category : Hadrons
Languages : en
Pages : 348
Book Description
D Meson Production in E+e− Annihilation
Author: Petros-Afentoulis Rapidis
Publisher:
ISBN:
Category : Annihilation reactions
Languages : en
Pages : 228
Book Description
Publisher:
ISBN:
Category : Annihilation reactions
Languages : en
Pages : 228
Book Description
Nuclear Science Abstracts
Author:
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ISBN:
Category : Nuclear energy
Languages : en
Pages : 648
Book Description
NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 648
Book Description
NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.
Hadron Production by Ee− Annihilation at Center-of-mass Energies Between 2. 6 and 7. 8 GeV.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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.
Inclusive D0 Production in E+e Annihilation at 29 GeV
Author: Raymond Eugene Van Tyen
Publisher:
ISBN:
Category :
Languages : en
Pages : 186
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 186
Book Description
Total and Inclusive Hadron Production by Ee− Annihilation at [square Root Symbol]S
Author: James Fraser Patrick
Publisher:
ISBN:
Category :
Languages : en
Pages : 234
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 234
Book Description
Total and Inclusive Hadron Production by Ee− Annihilation At. Sqrt. S
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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.