A study of isosinglet meson resonances with J(PC) = 0(++), 2(++), and 4(++) below 2 Gev.
Item
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Title
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A study of isosinglet meson resonances with J(PC) = 0(++), 2(++), and 4(++) below 2 Gev.
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Identifier
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AAI8821084
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identifier
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8821084
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Creator
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Goo, Jamyeung A.
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Contributor
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Adviser: S. J. Lindenbaum
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Date
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1988
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Language
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English
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Publisher
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City University of New York.
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Subject
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Physics, Elementary Particles and High Energy
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Abstract
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A large number of data sets on meson-meson system became available including those from a high statistics experiment of {dollar}\pi{dollar} exchange production of the {dollar}K\sbsp{lcub}S{rcub}{lcub}0{rcub}K\sbsp{lcub}S{rcub}{lcub}0{rcub}{dollar} system in which the author participated. These data on the {dollar}\pi\pi{dollar}, {dollar}K\bar K{dollar}, {dollar}\eta\eta{dollar}, and {dollar}\eta\eta\sp\prime{dollar} systems come from fixed-target(hadronic) experiments. These data which have been obtained using the OPE hypothesis, along with other data for {dollar}J/\psi\to MM\gamma{dollar} and {dollar}pp\to pp\pi\sp+\pi\sp-{dollar}, are studied in detail. A re-analysis of the {dollar}\pi\pi{dollar} data of the type B-solution which is the only consistent solution relating the {dollar}\pi\sp+\pi\sp-{dollar} and {dollar}\pi\sp0\pi\sp0{dollar} data sets shows outstanding inconsistencies among the S-wave amplitudes. The average of the {dollar}\pi\pi{dollar} data was derived using the adiabatic averaging method. The data on the {dollar}K\bar K{dollar} from the hadronic production experiments(with {dollar}\pi{dollar} beam) are consistent.;We then perform a coupled-channel analysis based upon the K-matrix formulation of the S matrix to study processes {dollar}\pi\pi\to MM{dollar}. The results indicate that a unitary description of the 2{dollar}\sp{lcub}++{rcub}{dollar} mesons is achieved. In particular the {dollar}f\sb2{dollar}(1720) is not seen in the hadronic channels. The {dollar}f\sb2{dollar}(1810) is established in the hadronic channels. Only preliminary work on the unitary description of the 0{dollar}\sp{lcub}++{rcub}{dollar} mesons has been done. We require at least seven resonances to roughly understand the scalar meson spectra.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
