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5 results on '"CASCADE DECAY [UPSILON(10020)]"'

1. A study of the radiative CASCADE transitions between the Upsilon-Prime and Upsilon resonances

Author

Skwarnicki, Tomasz and Rybiki, K.

Subjects
VALIDITY TEST [QUANTUM CHROMODYNAMICS], SPIN [CHI MESONS], MODEL: POTENTIAL, +CHI+MESONS+PHOTON%22">UPSILON(10020) --> CHI MESONS PHOTON, POTENTIAL [MODEL], BIBLIOGRAPHY, MASS: CHI MESONS, RADIATIVE DECAY: UPSILON(10020), THESIS, ANGULAR CORRELATION, UPSILON(10020) [CASCADE DECAY], FINAL STATE [(MUON+ MUON- 2PHOTON)], FINAL STATE: (MUON+ MUON- 2PHOTON), (MUON+ MUON- 2PHOTON) [FINAL STATE], DESY DORIS II STOR, ELECTROPRODUCTION: UPSILON(10020), MULTIPOLE [PARTIAL WAVE ANALYSIS], BRANCHING RATIO, ANNIHILATION: ELECTRON POSITRON, FINAL STATE: (POSITRON ELECTRON 2PHOTON), (PHOTON) [ENERGY SPECTRUM], ELECTRON POSITRON [ANNIHILATION], BOTTOMONIUM, (MUON+ MUON- 2PHOTON): FINAL STATE, WIDTH [CHI MESONS], QUANTUM CHROMODYNAMICS: VALIDITY TEST, ANNIHILATION [ELECTRON POSITRON], CHI MESONS: SPIN, bottom [CHI MESONS], PARTIAL WAVE ANALYSIS: MULTIPOLE, CHI MESONS: bottom, CHI MESONS: MASS, SPIN: CHI MESONS, CASCADE DECAY: UPSILON(10020), CHI MESONS [SPIN], +UPSILON%289460%29+PHOTON%22">CHI MESONS --> UPSILON(9460) PHOTON, 10.02 GEV-CMS, UPSILON(10020): CASCADE DECAY, (POSITRON ELECTRON 2PHOTON) [FINAL STATE], FINAL STATE [(POSITRON ELECTRON 2PHOTON)], UPSILON(10020) [ELECTROPRODUCTION], EXPERIMENTAL RESULTS, UPSILON(10020) [RADIATIVE DECAY], UPSILON(10020): RADIATIVE DECAY, CHI MESONS [MASS], ENERGY SPECTRUM [(PHOTON)], RADIATIVE DECAY [UPSILON(10020)], CASCADE DECAY [UPSILON(10020)], (PHOTON): ENERGY SPECTRUM, UPSILON(10020): ELECTROPRODUCTION, ENERGY SPECTRUM: (PHOTON), MASS [CHI MESONS], QUANTUM CHROMODYNAMICS: SUM RULE, ELECTROPRODUCTION [UPSILON(10020)], SUM RULE [QUANTUM CHROMODYNAMICS], CHI MESONS: WIDTH, (POSITRON ELECTRON 2PHOTON): FINAL STATE, Crystal Ball, ELECTRON POSITRON: ANNIHILATION
Abstract

133 pp. (1986)., The cascade reaction $e^+e^- \to \Upsilon' \to \gamma X_b \to \gamma \gamma \Upsilon \to \gamma \gamma (\mu^+ \mu^-$ or $e^+e^-)$ has been studied with the Crystal Ball detector at the $e^+e^-$ storage ring DORIS-II. Two $x_b$ states are observed by monoenergetic photon lines at 107.7 ± 1.1 ± 1.0 MeV and 132.4 ± 0.9 ± 1.0 MeV, with amplitudes of 56 ± 6 and 82 ± 10 events correspondingly. Upper limits for full widths of those states at 90 % confidence level are < 6.2 MeV and < 6.9 MeV respectively...

Published
1986
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2. Spin Analysis of the $\chi(b$) States

Author

Skwarnicki, T., Antreasyan, D., Conforto, G., Cooper, S., Cowan, R., Coyne, D. G., Edwards, C., Engler, A., Folger, G., Fridman, A., Gaiser, J., Gelphman, D., Besset, D., Godfrey, G., Heimlich, F. H., Hofstadter, R., Irion, J., Jakubowski, Z., Keh, S., Kilian, H., Kirkbride, I., Kloiber, T., Koch, W. S., Bienlein, J. K., Konig, A. C., Konigsmann, Kay, Kraemer, R. W. S., Lee, Roger A., Leffler, S., Lekebusch, R., Litke, A., Lockman, William S., Lowe, S., Lurz, B., Bloom, Elliott D., Marlow, Daniel R., Maschmann, W. S., Matsui, T., Messing, F., Metzger, W. J., Monteleoni, B., Nernst, R., Niczyporuk, B., Nowak, G., Peck, C., Brock, I., Pelfer, P. G., Pollock, B., Porter, F., Prindle, D., Ratoff, P., Renger, B., Rippich, C., Scheer, M., Schmitt, P., Schotanus, J., Cabenda, R., Schwarz, Andreas S., Sievers, D., Strauch, K., Strohbusch, U., Tompkins, J., Trost, H. J., Van de Walle, R. T., Vogel, H., Volland, U., Wacker, K., Cartacci, A., Walk, W. S., Wegener, H., Williams, D., Zschorsch, P., Crystal Ball Collaboration, Cavalli-Sforza, M., and Clare, R.

Subjects
+CHI%2FB%289895%29+PHOTON%22">UPSILON(10020) --> CHI/B(9895) PHOTON, +POSITRON+ELECTRON%22">UPSILON(9460) --> POSITRON ELECTRON, POTENTIAL [MODEL], +MUON%2B+MUON%22">UPSILON(9460) --> MUON+ MUON, SPIN [CHI/B(9895)], ANGULAR CORRELATION, 10.02 GEV-CMS, +UPSILON%289460%29+PHOTON%22">CHI/B(9895) --> UPSILON(9460) PHOTON, +UPSILON%289460%29+PHOTON%22">CHI/B(9915) --> UPSILON(9460) PHOTON, ddc:550, UPSILON(10020) [CASCADE DECAY], CHI/B(9915) [SPIN], UPSILON(10020) [ELECTROPRODUCTION], SPIN [CHI/B(9915)], EXPERIMENTAL RESULTS, DESY DORIS II STOR, UPSILON(10020) [RADIATIVE DECAY], HEAVY [QUARKONIUM], CHI/B(9895) [SPIN], COLLIDING BEAMS [ELECTRON POSITRON], ENERGY SPECTRUM [(PHOTON)], CASCADE DECAY [UPSILON(10020)], RADIATIVE DECAY [UPSILON(10020)], ELECTRON POSITRON [COLLIDING BEAMS], (PHOTON) [ENERGY SPECTRUM], ELECTRON POSITRON [ANNIHILATION], +CHI%2FB%289915%29+PHOTON%22">UPSILON(10020) --> CHI/B(9915) PHOTON, ANNIHILATION [ELECTRON POSITRON], ELECTROPRODUCTION [UPSILON(10020)], Crystal Ball
Abstract

Angular correlations in the cascade reaction e+e−→Υ(2S)→γχb, χb→γΥ, Υ→μ+μ− or Υ→e+e−, have been used for the first time to investigate the spins of the χb states. The results support the χb spins predicted by the potential models of heavy quarkonia.

Published
1987
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3. SPIN ANALYSIS OF THE $\chi_b$ STATES

Author

Skwarnicki, Tomasz and Ball, Crystal

Subjects
SPIN [CHI MESONS], +CHI+MESONS+PHOTON%22">UPSILON(10020) --> CHI MESONS PHOTON, RADIATIVE DECAY: UPSILON(10020), TALK, ANGULAR CORRELATION, UPSILON(10020) [CASCADE DECAY], FINAL STATE [(MUON+ MUON- 2PHOTON)], FINAL STATE: (MUON+ MUON- 2PHOTON), (MUON+ MUON- 2PHOTON) [FINAL STATE], DESY DORIS II STOR, ELECTROPRODUCTION: UPSILON(10020), COLLIDING BEAMS [ELECTRON POSITRON], ANNIHILATION: ELECTRON POSITRON, FINAL STATE: (POSITRON ELECTRON 2PHOTON), (PHOTON) [ENERGY SPECTRUM], ELECTRON POSITRON: COLLIDING BEAMS, ELECTRON POSITRON [ANNIHILATION], (MUON+ MUON- 2PHOTON): FINAL STATE, WIDTH [CHI MESONS], ANNIHILATION [ELECTRON POSITRON], CHI MESONS: SPIN, bottom [CHI MESONS], CHI MESONS: bottom, SPIN: CHI MESONS, CASCADE DECAY: UPSILON(10020), CHI MESONS [SPIN], +UPSILON%289460%29+PHOTON%22">CHI MESONS --> UPSILON(9460) PHOTON, 10.02 GEV-CMS, UPSILON(10020): CASCADE DECAY, (POSITRON ELECTRON 2PHOTON) [FINAL STATE], FINAL STATE [(POSITRON ELECTRON 2PHOTON)], UPSILON(10020) [ELECTROPRODUCTION], COLLIDING BEAMS: ELECTRON POSITRON, EXPERIMENTAL RESULTS, UPSILON(10020) [RADIATIVE DECAY], UPSILON(10020): RADIATIVE DECAY, ENERGY SPECTRUM [(PHOTON)], RADIATIVE DECAY [UPSILON(10020)], CASCADE DECAY [UPSILON(10020)], (PHOTON): ENERGY SPECTRUM, ELECTRON POSITRON [COLLIDING BEAMS], UPSILON(10020): ELECTROPRODUCTION, ENERGY SPECTRUM: (PHOTON), ELECTROPRODUCTION [UPSILON(10020)], CHI MESONS: WIDTH, (POSITRON ELECTRON 2PHOTON): FINAL STATE, Crystal Ball, ELECTRON POSITRON: ANNIHILATION
Abstract

7 pp. (1985).

Published
1985
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4. $\Upsilon$ spectroscopy

Author

Konigsmann, Kay

Subjects
MODEL: POTENTIAL, EXPERIMENTAL RESULTS [REVIEW], CASCADE DECAY: UPSILON(10020), POTENTIAL [MODEL], BIBLIOGRAPHY, RADIATIVE DECAY [UPSILON(9460)], RADIATIVE DECAY: UPSILON(10020), UPSILON(9460): RADIATIVE DECAY, ELECTROPRODUCTION: UPSILON(9460), UPSILON(10020): CASCADE DECAY, INCLUSIVE REACTION: DECAY, UPSILON(10020) [CASCADE DECAY], UPSILON(10020) [ELECTROPRODUCTION], COLLIDING BEAMS: ELECTRON POSITRON, ZETA(8300) [POSTULATED PARTICLE], UPSILON MESONS: HADRON SPECTROSCOPY, DESY DORIS II STOR, ELECTROPRODUCTION [UPSILON(9460)], ELECTROPRODUCTION: UPSILON(10020), UPSILON(10020): RADIATIVE DECAY, UPSILON(10020) [RADIATIVE DECAY], RADIATIVE DECAY: UPSILON(9460), COLLIDING BEAMS [ELECTRON POSITRON], ENERGY SPECTRUM [(PHOTON)], (PHOTON): ENERGY SPECTRUM, RADIATIVE DECAY [UPSILON(10020)], CASCADE DECAY [UPSILON(10020)], ANNIHILATION: ELECTRON POSITRON, UPSILON(9460): ELECTROPRODUCTION, UPSILON(10020): ELECTROPRODUCTION, ELECTRON POSITRON [COLLIDING BEAMS], (PHOTON) [ENERGY SPECTRUM], CORNELL CESR STOR, DECAY [INCLUSIVE REACTION], ELECTRON POSITRON: COLLIDING BEAMS, ENERGY SPECTRUM: (PHOTON), REVIEW: EXPERIMENTAL RESULTS, POSTULATED PARTICLE: ZETA(8300), ELECTRON POSITRON [ANNIHILATION], UPSILON(9460) [ELECTROPRODUCTION], UPSILON(9460) [RADIATIVE DECAY], DECAY: INCLUSIVE REACTION, BOTTOMONIUM, ANNIHILATION [ELECTRON POSITRON], HADRON SPECTROSCOPY [UPSILON MESONS], INCLUSIVE REACTION [DECAY], ELECTROPRODUCTION [UPSILON(10020)], ELECTRON POSITRON: ANNIHILATION
Abstract

29 pp. (1985).

Published
1985
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5. Recent Results from DORIS

Author

Bienlein, J. K.

Subjects
(2JET): FINAL STATE, HADRONIC DECAY [UPSILON(9460)], EXPERIMENTAL RESULTS [REVIEW], HADRON: YIELD, RADIATIVE DECAY: UPSILON(10020), 7.4-7.5: 8.6-10.1 GEV, (3JET): FINAL STATE, +UPSILON%289460%29+2PHOTON%22">UPSILON(10020) --> UPSILON(9460) 2PHOTON, HADRON: ELECTROPRODUCTION, SPECTRUM [INCLUSIVE REACTION], ELECTROPRODUCTION: UPSILON(9460), ELECTROPRODUCTION [HADRON], ANGULAR CORRELATION: TWO-PARTICLE, JET [GLUON], UPSILON(10020) [CASCADE DECAY], BRANCHING RATIO [UPSILON(10020)], UPSILON(9460) [LEPTONIC DECAY], UPSILON(9460): HADRONIC DECAY, INCLUSIVE REACTION [SPECTRUM], TWO-PARTICLE [ANGULAR CORRELATION], ELECTROPRODUCTION: HADRON, GLUON [SPIN], THRUST [JET], UPSILON(10020): BRANCHING RATIO, JET: THRUST, ELECTROPRODUCTION [UPSILON(9460)], 8.6-10.1 GEV [7.4-7.5], ELECTROPRODUCTION: UPSILON(10020), SPIN: GLUON, HADRON [ELECTROPRODUCTION], YIELD [HADRON], JET [ELECTROPRODUCTION], FINAL STATE: (3JET), HADRONIC DECAY [UPSILON(10020)], ELECTRON POSITRON: INCLUSIVE REACTION, ELECTROPRODUCTION: JET, COLLIDING BEAMS [ELECTRON POSITRON], ANNIHILATION: ELECTRON POSITRON, UPSILON(9460): ELECTROPRODUCTION, JET: SPHERICITY, ELECTRON POSITRON: COLLIDING BEAMS, FINAL STATE [(3JET)], SPHERICITY [JET], REVIEW: EXPERIMENTAL RESULTS, ELECTRON POSITRON [ANNIHILATION], FRAGMENTATION [GLUON], CHARGED PARTICLE [MULTIPLICITY], FINAL STATE: (2JET), ANNIHILATION [ELECTRON POSITRON], ELECTROPRODUCTION [JET], SPIN [GLUON], LEPTONIC DECAY: UPSILON(9460), JET [QUARK], DIFFERENTIAL CROSS SECTION, CASCADE DECAY: UPSILON(10020), COUPLING CONSTANT [STRONG INTERACTION], (2JET) [FINAL STATE], (3JET) [FINAL STATE], UPSILON(10020): CASCADE DECAY, MULTIPLICITY: CHARGED PARTICLE, COUPLING CONSTANT: STRONG INTERACTION, GLUON: JET, FINAL STATE [(2JET)], UPSILON(10020) [ELECTROPRODUCTION], STRONG INTERACTION [COUPLING CONSTANT], COLLIDING BEAMS: ELECTRON POSITRON, UPSILON(9460) [HADRONIC DECAY], GLUON: SPIN, UPSILON(10020) [HADRONIC DECAY], HADRONIC DECAY: UPSILON(10020), QUARK: JET, UPSILON(10020): HADRONIC DECAY, GLUON: FRAGMENTATION, UPSILON(10020): RADIATIVE DECAY, JET: ELECTROPRODUCTION, UPSILON(10020) [RADIATIVE DECAY], DESY DORIS STOR, INCLUSIVE REACTION: SPECTRUM, SPECTRUM: INCLUSIVE REACTION, RADIATIVE DECAY [UPSILON(10020)], CASCADE DECAY [UPSILON(10020)], UPSILON(10020): ELECTROPRODUCTION, INCLUSIVE REACTION [ELECTRON POSITRON], ELECTRON POSITRON [COLLIDING BEAMS], UPSILON(9460) [ELECTROPRODUCTION], STRONG INTERACTION: COUPLING CONSTANT, UPSILON(9460): LEPTONIC DECAY, HADRONIC DECAY: UPSILON(9460), ELECTROPRODUCTION [UPSILON(10020)], LEPTONIC DECAY [UPSILON(9460)], ELECTRON POSITRON: ANNIHILATION
Abstract

14 pp. (1981).

Published
1981
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