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Your search keyword '"QUARK: CHARMONIUM"' showing total 7 results
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7 results on '"QUARK: CHARMONIUM"'

1. Charm Spectroscopy using e+ e- Storage Rings

Author

Bartel, Wulfrin

Subjects
PSI(3700): WIDTH, DECAY MODES [PSI(3700)], PSI MESONS [HADRONIC DECAY], J/PSI(3100): ELECTROPRODUCTION, ELECTROPRODUCTION [J/PSI(3100)], LEPTONIC DECAY: CHARMED MESON, IIZUKA-OKUBO-ZWEIG [SELECTION RULE], SPIN [D], violation [CP], ELECTROPRODUCTION [HADRON], EXPERIMENTAL RESULTS: REVIEW, WIDTH [PSI(3700)], CASCADE DECAY [PSI(3700)], SPIN: D, QUANTUM NUMBER: J/PSI(3100), PSI MESONS: HADRONIC DECAY, CHARMONIUM [QUARK], HADRON [ELECTROPRODUCTION], STORAGE RING [ELECTRON POSITRON], PSI(3700) [QUANTUM NUMBER], ANNIHILATION: ELECTRON POSITRON, ELECTRON POSITRON [ANNIHILATION], ELECTROPRODUCTION [PSI(3700)], J/PSI(3100): QUANTUM NUMBER, D: PRODUCTION, ANNIHILATION [ELECTRON POSITRON], MASS [D], PSI MESONS: SPIN, ELECTROPRODUCTION [VECTOR MESON], D [MASS], PRODUCTION [D], ASSOCIATED PRODUCTION [D], DECAY MODES [J/PSI(3100)], WIDTH [J/PSI(3100)], J/PSI(3100) [DECAY MODES], D [DECAY MODES], HADRONIC DECAY: PSI MESONS, J/PSI(3100): WIDTH, CHARMED MESON: LEPTONIC DECAY, CP: violation, D [PRODUCTION], COLLIDING BEAMS: ELECTRON POSITRON, D: SPIN, CASCADE DECAY: PSI(3700), CHARMED MESON [LEPTONIC DECAY], D [SEMILEPTONIC DECAY], SYMMETRY: SU(3), LEPTONIC DECAY [CHARMED MESON], ELECTRON POSITRON [COLLIDING BEAMS], D: DECAY MODES, LUMINOSITY, PSI(3700) [ELECTROPRODUCTION], QUANTUM NUMBER [PSI(3700)], ELECTRON POSITRON: ANNIHILATION, SU(3) [SYMMETRY], PSI(3700) [CASCADE DECAY], QUARK: CHARMONIUM, EXPERIMENTAL RESULTS [REVIEW], HADRON: ELECTROPRODUCTION, PSI(3700): DECAY MODES, PSI MESONS [SPIN], DECAY MODES [D], ELECTROPRODUCTION: HADRON, DECAY MODES: PSI(3700), POSTULATED PARTICLE: ETA(C), DECAY MODES: J/PSI(3100), D [ASSOCIATED PRODUCTION], COLLIDING BEAMS [ELECTRON POSITRON], DECAY MODES: D, REVIEW [EXPERIMENTAL RESULTS], ELECTROPRODUCTION: J/PSI(3100), J/PSI(3100) [QUANTUM NUMBER], D: MASS, RATIO [TOTAL CROSS SECTION], ELECTRON POSITRON: COLLIDING BEAMS, D: SEMILEPTONIC DECAY, REVIEW: EXPERIMENTAL RESULTS, ELECTRON POSITRON: STORAGE RING, ETA(C) [POSTULATED PARTICLE], SELECTION RULE: IIZUKA-OKUBO-ZWEIG, PRODUCTION: D, MASS: D, VECTOR MESON [ELECTROPRODUCTION], ELECTROPRODUCTION: VECTOR MESON, J/PSI(3100) [ELECTROPRODUCTION], HADRONIC DECAY [PSI MESONS], ASSOCIATED PRODUCTION: D, RATIO: TOTAL CROSS SECTION, PSI(3700): ELECTROPRODUCTION, D: ASSOCIATED PRODUCTION, TOTAL CROSS SECTION [RATIO], QUANTUM NUMBER [J/PSI(3100)], LECTURES, D [SPIN], SPIN: PSI MESONS, SEMILEPTONIC DECAY: D, SEMILEPTONIC DECAY [D], PSI(3700) [DECAY MODES], PSI(3700): QUANTUM NUMBER, TOTAL CROSS SECTION: RATIO, ELECTROPRODUCTION: PSI(3700), SPIN [PSI MESONS], VECTOR MESON: ELECTROPRODUCTION, QUANTUM NUMBER: PSI(3700), J/PSI(3100): DECAY MODES, PSI(3700): CASCADE DECAY
Abstract

86 pp. (1980).

Published
1980
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2. Measurement of the Total Hadronic Cross-Section in the e+ e- Annihilation at Center-Of-Mass Energies from 3.6-GeV to 5.2-GeV

Author

Petersen, Anna Katinka

Subjects
MULTIPLE PRODUCTION [HADRON], RADIATIVE CORRECTION, QUARK: CHARMONIUM, BIBLIOGRAPHY, DIFFERENTIAL CROSS SECTION: ENERGY DEPENDENCE, HADRON: ELECTROPRODUCTION, MULTIPLE PRODUCTION: HADRON, THESIS, ELECTROPRODUCTION [HADRON], 3.6-5.2 GEV-CM, DASP [MAGNETIC DETECTOR], ELECTROPRODUCTION: HADRON, TOTAL CROSS SECTION: RATIO, COLLIDING BEAMS: ELECTRON POSITRON, EXPERIMENTAL RESULTS, ENERGY DEPENDENCE [TOTAL CROSS SECTION], CHARMONIUM [QUARK], TOTAL CROSS SECTION: ENERGY DEPENDENCE, NUMERICAL CALCULATIONS: MONTE CARLO, HADRON [ELECTROPRODUCTION], CHARM [THRESHOLD], QUANTUM CHROMODYNAMICS, MONTE CARLO [NUMERICAL CALCULATIONS], DESY DORIS STOR, COLLIDING BEAMS [ELECTRON POSITRON], HADRON [MULTIPLE PRODUCTION], HADRON: MULTIPLE PRODUCTION, ANNIHILATION: ELECTRON POSITRON, ELECTRON POSITRON [COLLIDING BEAMS], RATIO [TOTAL CROSS SECTION], ELECTRON POSITRON: COLLIDING BEAMS, ELECTRON POSITRON [ANNIHILATION], ENERGY DEPENDENCE [DIFFERENTIAL CROSS SECTION], ANNIHILATION [ELECTRON POSITRON], COUPLING CONSTANT, ANGULAR DISTRIBUTION, MAGNETIC DETECTOR: DASP, ELECTRON POSITRON: ANNIHILATION, THRESHOLD: CHARM
Abstract

60 pp. (1978).

Published
1978
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3. UNTERSUCHUNG VON KASKADENZERFÄLLEN DER $\psi'$-RESONANZ ÜBER DIE $J/\psi$-RESONANZ

Author

Gadermann, Ernst

Subjects
FINAL STATE: PI, FINAL STATE: PI0, QUARK: CHARMONIUM, NONLEPTONIC DECAY: PSI(3700), ANGULAR DISTRIBUTION: DECAY, MASS: CHI/PC(3510), PSI(3700): BRANCHING RATIO, BIBLIOGRAPHY, ETA(549), PSI(3700): NONLEPTONIC DECAY, SPIN: PSI MESONS, THESIS, PHOTON: FINAL STATE, CHI(3550): MASS, DECAY: ANGULAR DISTRIBUTION, COLLIDING BEAMS: ELECTRON POSITRON, MASS: CHI(3410), EXPERIMENTAL RESULTS, CHI(3410): MASS, FINAL STATE: PI+, +J%2FPSI%283100%29+ETA%28549%29%282PHOTON%29%22">PSI(3700) --> J/PSI(3100) ETA(549)(2PHOTON), CHI/PC(3510): MASS, FINAL STATE: PHOTON, +CHI%283410%29%28J%2FPSI%283100%29+PHOTON%29+PHOTON%22">PSI(3700) --> CHI(3410)(J/PSI(3100) PHOTON) PHOTON, +J%2FPSI%283100%29+PI0%282PHOTON%29%22">PSI(3700) --> J/PSI(3100) PI0(2PHOTON), +J%2FPSI%283100%29+PI%2B+PI%22">PSI(3700) --> J/PSI(3100) PI+ PI, ELECTRON POSITRON: COLLIDING BEAMS, SEARCH FOR: AXION, +CHI%2FPC%283510%29%28J%2FPSI%283100%29+PHOTON%29+PHOTON%22">PSI(3700) --> CHI/PC(3510)(J/PSI(3100) PHOTON) PHOTON, +J%2FPSI%283100%29+AXION%22">PSI(3700) --> J/PSI(3100) AXION, DECAY: CASCADE, PSI MESONS: SPIN, PI0: FINAL STATE, PI+: FINAL STATE, POSTULATED PARTICLE: AXION, PSI(3700): RADIATIVE DECAY, MASS: CHI(3550), PI-: FINAL STATE, +CHI%283550%29%28J%2FPSI%283100%29+PHOTON%29+PHOTON%22">PSI(3700) --> CHI(3550)(J/PSI(3100) PHOTON) PHOTON, MAGNETIC SPECTROMETER: DASP
Abstract

58 pp. (1978).

Published
1978
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4. POSSIBLE OPEN CHANNEL EFFECTS IN THE CHARMONIUM SPECTRUM

Author

Barbour, I. M. and Gilchrist, J. P.

Subjects
MASS SPECTRUM [CHARMONIUM], DECAY [CHARMONIUM], QUARK: CHARMONIUM, CHARMONIUM: MASS SPECTRUM, High Energy Physics::Lattice, MODEL: POTENTIAL, PARTIAL WAVE ANALYSIS: COUPLED CHANNEL, (2MESON) [BOUND STATE], COUPLED CHANNEL [PARTIAL WAVE ANALYSIS], POTENTIAL [MODEL], QUARK: MULTIQUARK, MULTIQUARK [QUARK], MASS SPECTRUM: CHARMONIUM, CROSS SECTION: ENERGY DEPENDENCE, NUMERICAL CALCULATIONS, ddc:530, Computer Science::Information Theory, CHARMONIUM [QUARK], ENERGY DEPENDENCE [CROSS SECTION], High Energy Physics::Phenomenology, DECAY: CHARMONIUM, ANNIHILATION: ELECTRON POSITRON, NONRELATIVISTIC [QUARK], ELECTRON POSITRON [ANNIHILATION], QUARK: NONRELATIVISTIC, CHARMONIUM [DECAY], ANNIHILATION [ELECTRON POSITRON], BOUND STATE: (2MESON), High Energy Physics::Experiment, CHARMONIUM [MASS SPECTRUM], CHARMONIUM: DECAY, ELECTRON POSITRON: ANNIHILATION
Abstract

(1984). doi:10.1007/BF01581601, The non-relativistic quark model is used to investigate the effects of open channels and possible\((q\bar q)^2 \) dimesonium states on the charmonium spectrum. An alternative interpretation of the structures inR above threshold is proposed.

Published
1983
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5. DEEP INELASTIC STRUCTURE FUNCTIONS: DECISIVE TESTS OF QCD

Author

Reya, E.

Subjects
VALIDITY TEST [QUANTUM CHROMODYNAMICS], QUARK: CHARMONIUM, MODEL: PARTON, DRELL-YAN [MODEL], BIBLIOGRAPHY, (3JET): FINAL STATE, GLUON: COUPLING, DIMUON: FINAL STATE, RENORMALIZATION GROUP, INTERACTION: NEUTRINO NUCLEON, MODEL: DRELL-YAN, INTERACTION [NEUTRINO NUCLEON], MODEL: STRONG INTERACTION, CHARMONIUM [QUARK], VIOLATION [SCALING], MODEL [STRONG INTERACTION], FINAL STATE: (3JET), CORRECTION: HIGHER-ORDER, ANNIHILATION: ELECTRON POSITRON, FINAL STATE [(3JET)], NEUTRINO NUCLEON: INTERACTION, ELECTRON POSITRON [ANNIHILATION], COUPLING: QUARK, QUANTUM CHROMODYNAMICS: VALIDITY TEST, ANNIHILATION [ELECTRON POSITRON], NEUTRINO NUCLEON [INTERACTION], STRONG INTERACTION [MODEL], MOMENT: STRUCTURE FUNCTION, COUPLING: GLUON, STRUCTURE FUNCTION [LEPTON NUCLEON], APPROXIMATION: BETHE-HEITLER, HIGHER-ORDER [CORRECTION], DIMUON [FINAL STATE], QUARK [COUPLING], (3JET) [FINAL STATE], STRONG INTERACTION: MODEL, COUPLING [GLUON], REVIEW, LEPTON NUCLEON: STRUCTURE FUNCTION, BETHE-HEITLER [APPROXIMATION], GLUON [COUPLING], QUARK: COUPLING, SCALING: VIOLATION, FINAL STATE: DIMUON, COUPLING [QUARK], FINAL STATE [DIMUON], STRUCTURE FUNCTION [MOMENT], JET, PARTON [MODEL], ELECTRON POSITRON: ANNIHILATION
Abstract

36 pp. (1979).

Published
1979
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6. Quarkonia

Author

Krammer, M. and Krasemann, H.

Subjects
QUARK: CHARMONIUM, TRANSITION: MAGNETIC, SCALING: RADIATIVE DECAY, PSI MESONS: ENERGY LEVELS, TRANSITION: ELECTRIC, BIBLIOGRAPHY, LECTURES, QUARK: CHARGE, bottom, HYPERFINE STRUCTURE: CHARMONIUM, QUARK ANTIQUARK: BOUND STATE, DUALITY, NEW PARTICLE: CHI(3450), QUANTUM MECHANICS: SCHROEDINGER EQUATION, SCALING: SCHROEDINGER EQUATION, QUANTUM CHROMODYNAMICS, RADIATIVE DECAY: PSI MESONS, ANNIHILATION: ELECTRON POSITRON, RADIATIVE DECAY: SCALING, QUARK: QUARKONIUM, PSI MESONS: RADIATIVE DECAY, NEW PARTICLE: CHI(3590), JET, FINE STRUCTURE: CHARMONIUM, X(2830), ELECTRON POSITRON: ANNIHILATION
Abstract

65 pp. (1979). doi:10.1007/978-3-7091-8574-2_4, When the J/ψ and ψ’ were discovered in fall 1974 [1] we all witnessed a dramatic and beautiful revival of the quark model [2]. The predicted new quark flavour, c = charm [3] could be added to the hadron spectroscopy by the interpretation of the new particles as c c¯ bound states. It was argued that the new system is nonrelativistic: Charmonium [4]. Whereas the old mesons suffered from the fact that the quarks are extremely relativistic (mass differences are of the order of the masses themselves), in Charmonium the heavy (≈ 1.5 GeV) c-quarks should move relatively slowly, β2 = (v/c)2 ≈ 0.2. The well known powerful methods of exploring a nonrelativistic system could be used. This was the source of real excitement about the new particles.

Published
1979
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7. The decay $\chi (3.45) \to\pi^+\pi6-$ X(2.83): A test of charm anti-charm dynamics

Author

Greco, Mario and Krammer, M.

Subjects
PSI(3700): DECAY, VALIDITY TEST [QUANTUM CHROMODYNAMICS], FINAL STATE: PI, QUARK: CHARMONIUM, PSI MESONS: BRANCHING RATIO, +X%282830%29+PI%2B+PI%22">CHI(3450) --> X(2830) PI+ PI, PSI(3700) [DECAY], PHOTON [FINAL STATE], DECAY: CHI(3450), DECAY [PSI(3700)], CHI(3450) [DECAY], FINAL STATE [PHOTON], BACKGROUND, FINAL STATE [PI-], PSI MESONS: NONLEPTONIC DECAY, CHI(3450) [NEW PARTICLE], NONLEPTONIC DECAY: PSI MESONS, PHOTON: FINAL STATE, FINAL STATE [PI+], NEW PARTICLE: CHI(3450), ddc:530, +X%282830%29+PI%2B+PI-+PHOTON%22">PSI(3700) --> X(2830) PI+ PI- PHOTON, FINAL STATE: PI+, CHARMONIUM [QUARK], NONLEPTONIC DECAY [PSI MESONS], FINAL STATE: PHOTON, PI+ [FINAL STATE], PROPOSED EXPERIMENT, +X%282830%29%282PHOTON%29+PI%2B+PI-+PHOTON%22">PSI(3700) --> X(2830)(2PHOTON) PI+ PI- PHOTON, DECAY: PSI(3700), BRANCHING RATIO [PSI MESONS], QUANTUM CHROMODYNAMICS: VALIDITY TEST, PI+: FINAL STATE, PI- [FINAL STATE], PI-: FINAL STATE, PSI MESONS [NONLEPTONIC DECAY], X(2830)
Abstract

(1977). doi:10.1016/0370-2693(77)90554-8, We propose to study the decay ψ ′ → γπ + π − X (2.83) for a better understanding of the nature of the χ (3.45) and X(2.83) states and as a crucial test of current ideas on c c dynamics. Estimates are given for the rates, and possible background are also discussed.

Published
1977
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