Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We have studied hadron production in ee− annihilation at 29 GeV center of mass energy. We have measured the particle fractions and particle separated differential cross sections using the PEP-4 (Time Projection Chamber) detector. The particles were identified by measuring their ionization energy loss (dE/dx). The pion fraction decreases from above 90% at 400 MeV/c to 55% at 6 GeV/c. Our results for kaon production require that a large number of kaons are produced by strange quarks pulled from the vacuum. We have also measured R, the ratio of the total hadronic cross section to the mu pair cross section. Our value for R is 3.7 with an uncertainty of 10%. This value is in agreement with the results of other experiments and with the predictions of the quark-parton model.
Charged-hadron Production in Ee− Collisions at PEP with the TPC.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We have studied hadron production in ee− annihilation at 29 GeV center of mass energy. We have measured the particle fractions and particle separated differential cross sections using the PEP-4 (Time Projection Chamber) detector. The particles were identified by measuring their ionization energy loss (dE/dx). The pion fraction decreases from above 90% at 400 MeV/c to 55% at 6 GeV/c. Our results for kaon production require that a large number of kaons are produced by strange quarks pulled from the vacuum. We have also measured R, the ratio of the total hadronic cross section to the mu pair cross section. Our value for R is 3.7 with an uncertainty of 10%. This value is in agreement with the results of other experiments and with the predictions of the quark-parton model.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We have studied hadron production in ee− annihilation at 29 GeV center of mass energy. We have measured the particle fractions and particle separated differential cross sections using the PEP-4 (Time Projection Chamber) detector. The particles were identified by measuring their ionization energy loss (dE/dx). The pion fraction decreases from above 90% at 400 MeV/c to 55% at 6 GeV/c. Our results for kaon production require that a large number of kaons are produced by strange quarks pulled from the vacuum. We have also measured R, the ratio of the total hadronic cross section to the mu pair cross section. Our value for R is 3.7 with an uncertainty of 10%. This value is in agreement with the results of other experiments and with the predictions of the quark-parton model.
Charged Hadron Production in E+e− Collisions at PEP with the TPC
Author: Nicholas John Hadley
Publisher:
ISBN:
Category :
Languages : en
Pages : 292
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 292
Book Description
Charged Hadron Production in Ee− Annihilation At. Sqrt. S
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Data from the Time Projection Chamber at the SLAC storage ring PEP have been used to study the inclusive production of charged hadrons. Particles were identified by simultaneous dE/dx and momentum measurements. Cross sections and particle fractions for .pi./sup + -/, k/sup + -/, and p(anti p) are given as a function of several variables. Predictions of various hadronization models are compared to the data. A comparison is made with other fragmentation processes.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Data from the Time Projection Chamber at the SLAC storage ring PEP have been used to study the inclusive production of charged hadrons. Particles were identified by simultaneous dE/dx and momentum measurements. Cross sections and particle fractions for .pi./sup + -/, k/sup + -/, and p(anti p) are given as a function of several variables. Predictions of various hadronization models are compared to the data. A comparison is made with other fragmentation processes.
Charged Hadron Production in Ee− Annihilation at [square Root Of]s
Author: TPC/Two Gamma Collaboration
Publisher:
ISBN:
Category :
Languages : en
Pages : 95
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 95
Book Description
Physics Briefs
Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 910
Book Description
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 910
Book Description
Flavor Mixing in Weak Interactions
Author: Ling-Lie Chau
Publisher: Springer Science & Business Media
ISBN: 1461324394
Category : Science
Languages : en
Pages : 800
Book Description
The 50-year history of weak interaction since Fermi's pro posal of this coupling has been marked with striking direct inter plays between experimental results and theoretical understanding, e.g. the discoveries of neutrinos, parity violation, and CP vio lation. The recent discoveries of the quark hierarchy, the charm and the beauty, and the intermediate vector bosons W± and ZO have truly made a splendid page in the history of particle physics. It is the purpose of this conference to discuss the questions of quark and lepton generations and mixing, their relations to CP violation, and to ask the questions about what are inside the quarks and the leptons in view of the present and future exper imental situation. Dr. Ling-Lie Chau Brookhaven National Laboratory Upton, New York vii ACKNOWLEDGMENTS I would like to thank all the Advisory and Organizing Committee members for their advice and suggestions during the organization of the conference. The running of the conference could not have gone so smoothly without the help of many participants, I sincerely thank: L. Becker, F.J. Botella, S. Gentile, P. Le Comte, M.E. Machacek, L. Lanceri, W.M. Morse, F.J. Olness, Y.-X. Pham, G. Poulard, K.J. Sliwa, and J.N. Webb.
Publisher: Springer Science & Business Media
ISBN: 1461324394
Category : Science
Languages : en
Pages : 800
Book Description
The 50-year history of weak interaction since Fermi's pro posal of this coupling has been marked with striking direct inter plays between experimental results and theoretical understanding, e.g. the discoveries of neutrinos, parity violation, and CP vio lation. The recent discoveries of the quark hierarchy, the charm and the beauty, and the intermediate vector bosons W± and ZO have truly made a splendid page in the history of particle physics. It is the purpose of this conference to discuss the questions of quark and lepton generations and mixing, their relations to CP violation, and to ask the questions about what are inside the quarks and the leptons in view of the present and future exper imental situation. Dr. Ling-Lie Chau Brookhaven National Laboratory Upton, New York vii ACKNOWLEDGMENTS I would like to thank all the Advisory and Organizing Committee members for their advice and suggestions during the organization of the conference. The running of the conference could not have gone so smoothly without the help of many participants, I sincerely thank: L. Becker, F.J. Botella, S. Gentile, P. Le Comte, M.E. Machacek, L. Lanceri, W.M. Morse, F.J. Olness, Y.-X. Pham, G. Poulard, K.J. Sliwa, and J.N. Webb.
Charged hadron production in Pb-Au collisions at 158 AGeV/c
Author: Federica Ceretto
Publisher:
ISBN:
Category :
Languages : de
Pages : 112
Book Description
Publisher:
ISBN:
Category :
Languages : de
Pages : 112
Book Description
Dissertation Abstracts International
Author:
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Category : Dissertations, Academic
Languages : en
Pages : 490
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 490
Book Description
Hadron Production at PEP
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Recent results on hadron production in ee− annihilation at PEP and PETRA are summarized. The topics included are: (1) inclusive hadron production, (2) gluon vs quark jet, (3) analysis of 3 jet events and (4) p - anti p correlations. Experimental data are compared with predictions of several models to reveal underlying physics. 47 refs., 18 figs.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Recent results on hadron production in ee− annihilation at PEP and PETRA are summarized. The topics included are: (1) inclusive hadron production, (2) gluon vs quark jet, (3) analysis of 3 jet events and (4) p - anti p correlations. Experimental data are compared with predictions of several models to reveal underlying physics. 47 refs., 18 figs.
High Energy Physics Index
Author:
Publisher:
ISBN:
Category : Nuclear physics
Languages : en
Pages : 786
Book Description
Publisher:
ISBN:
Category : Nuclear physics
Languages : en
Pages : 786
Book Description