Author: M. AokiPublisher:
ISBN:
Category :
Languages : en
Pages : 10
Book Description
Study of Baryon Production Mechanism in E+e- Annihilation Into Hadrons
Author: M. AokiHadron Production in Ee− Annihilation At. Sqrt. S
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Data from the High Resolution Spectrometer at PEP have been used to study the inclusive production of baryons and mesons. Time-of-flight measurements are used to identify the charged hadrons. Neutral hadrons are identified from effective mass peaks in their decay into two charged particles. Cross sections for charged pions, charged and neutral kaons, protons and lambda hyperons are given. Other inclusive production characteristics are presented. The cross section ratios to the point cross section are: R(K°) = 5.59 +- 0.19 +- 0.30, and for .lambda.'s, R(.lambda.) = 0.762 +- 0.052 +- 0.064. The results, when compared to the Lund fragmentation model, give (us/ud)/(s/d) = 0.30 +- 0.10. 17 refs., 11 figs., 6 tabs.
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.
Hadron Production by E+e− Annihilation at Center-of-mass Energies Between 2.6 and 7.8 GeV
Author: James Leon SiegristPublisher:
ISBN:
Category : Hadrons
Languages : en
Pages : 348
Book Description
Study of intermittency on electron-positron annihilation into hadrons
Author: Hadron Production in Ee− Annihilation at 29 GeV.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Recent results from HRS on the production of scalar, tensor, and charm mesons and of strange and charm baryons in ee− annihilation are presented. The production of f0(975), f2(1270), and K2*(1430) is shown briefly. The decays of D*(2010) and D*(2007)° are studied in detail. The production of .xi.− and .sigma.(1385)/sup + -/ is mentioned. Finally, the preliminary analyses of .lambda./sub c/ and .sigma./sub c//sup 0,++/ productions are presented.
Mesons and Baryons
Author: A. V. AnisovichPublisher: World Scientific
ISBN: 9812818251
Category : Science
Languages : en
Pages : 603
Book Description
This book is devoted to the investigation of the strongly interacting hadrons ? to a quark model operating with effective color particles, constituent quarks, massive effective gluons and diquarks. The study of strong interactions based on effective constituent particles requires a solid ground of experimental data, which we now have at our disposal with the serious progress made in the investigation of hadrons, especially meson states.The present understanding of QCD applied to strong interactions can be distorted by prejudices. Therefore, the way followed by the quark model is to rely on the experiment and to restore the effective Hamiltonian on the basis of QCD on the one hand, and, on the other, of the spectral integral method.Baryon-baryon and antibaryon-baryon interactions are studied with the purpose of unambiguous applications of the written formulae to the interpretation of experimental data ? to the observation of new meson and baryon resonances. The technique used is the spin-orbital momentum expansion of the amplitude. This method is our basic approach to the proper treatment of experimental data. The photon-induced reactions are also considered and the problem of form factors is discussed.
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