+PSEUDOSCALAR+MESON+POSITRON+ELECTRON%22&type=SU">ELECTRON POSITRON --> PSEUDOSCALAR MESON POSITRON ELECTRON, PSEUDOSCALAR MESON --> 2PHOTON, RADIATIVE DECAY: PSEUDOSCALAR MESON, 9.4-10.6 GEV-CMS, COLLIDING BEAMS: ELECTRON POSITRON, EXPERIMENTAL RESULTS, NARROW RESONANCE: SEARCH FOR, DESY DORIS II STOR, ELECTROPRODUCTION: PSEUDOSCALAR MESON, INELASTIC SCATTERING: ELECTRON POSITRON, TWO-PHOTON: EXCHANGE, WIDTH: BRANCHING RATIO, ELECTRON POSITRON: COLLIDING BEAMS, PSEUDOSCALAR MESON: RADIATIVE DECAY, EXCHANGE: TWO-PHOTON, PSEUDOSCALAR MESON: ELECTROPRODUCTION, ELECTRON POSITRON --> POSITRON ELECTRON 2PHOTON, Crystal Ball
| Popis: |
Physical review / D 38(5), 1365 - 1376 (1988). doi:10.1103/PhysRevD.38.1365
The Crystal Ball detector has been used at the DORIS II storage ring at DESY to study the reaction e+e−→e+e−γ*γ*→e+e−γγ, where X is a narrow resonance with mass between 100 and 3000 MeV. Formation of π0, η, and η’ mesons is observed, and the following meson partial widths are obtained: Γπ0Γ0→γγ=7.7±0.5±0.5 eV, Γη−γγ=0.514±0.017±0.035 keV, and Γη’→γγ=4.7±0.5±0.5 keV. No other narrow resonances are observed, and upper limits are given for the product ΓX→γγBX→γγ. .AE
Published by Inst., Woodbury, NY |
| Jazyk: |
English |
| DOI: |
10.3204/pubdb-2017-11283 |
| Přístupová URL adresa: |
https://explore.openaire.eu/search/publication?articleId=doi_________::160ef21466f4f5d4c89ce645c517c79b |
| Přírůstkové číslo: |
edsair.doi...........160ef21466f4f5d4c89ce645c517c79b |
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| Autor: |
Williams, D., Antreasyan, D., Bartels, H. W. S., Besset, D., Bieler, C., Bienlein, J. K., Bizzeti, A., Bloom, Elliott D., Brock, I., Brockmuller, K., Cabenda, R., Cartacci, A., Cavalli-Sforza, M., Clare, R., Compagnucci, A., Conforto, G., Cooper, S., Cowan, R., Coyne, D. G., Drews, G., Engler, A., Fairfield, K., Folger, G., Fridman, A., Gaiser, J., Gelphman, D., Glaser, G., Godfrey, G., Heimlich, F. H., Hofstadter, R., Irion, J., Jakubowski, Z., Karch, K., Keh, S., Kilian, H., Kirkbride, I., Kloiber, T., Kobel, M., Koch, W. S., Konig, A. C., Konigsmann, Kay, Kraemer, R. W. S., Kruger, S., Landi, G., Lee, Roger A., Leffler, S., Lekebusch, R., Lockman, William S., Lowe, S., Lurz, B., Marlow, Daniel R., Marsiske, H., Maschmann, W. S., McBride, P., Messing, F., Metzger, W. J., Meyer, H., Monteleoni, B., Nernst, R., Niczyporuk, B., Nowak, G., Peck, C., Pelfer, P. G., Pollock, B., Porter, F., Prindle, D., Ratoff, P., Reidenbach, M., Renger, B., Rippich, C., Scheer, M., Schmitt, P., Schotanus, J., Schutte, J., Schwarz, Andreas S., Selonke, F., Sievers, D., Skwarnicki, T., Stock, V., Strauch, K., Strohbusch, U., Tompkins, J., Trost, H. J., Van De Walle, R. T., Vogel, H., Voigt, A., Volland, U., Wachs, K., Wacker, K., Walk, W. S., Wegener, H., Zschorsch, P. |
| Jazyk: |
angličtina |
| Rok vydání: |
1988 |
| Předmět: |
|
| DOI: |
10.3204/pubdb-2017-11283 |
| Popis: |
Physical review / D 38(5), 1365 - 1376 (1988). doi:10.1103/PhysRevD.38.1365
The Crystal Ball detector has been used at the DORIS II storage ring at DESY to study the reaction e+e−→e+e−γ*γ*→e+e−γγ, where X is a narrow resonance with mass between 100 and 3000 MeV. Formation of π0, η, and η’ mesons is observed, and the following meson partial widths are obtained: Γπ0Γ0→γγ=7.7±0.5±0.5 eV, Γη−γγ=0.514±0.017±0.035 keV, and Γη’→γγ=4.7±0.5±0.5 keV. No other narrow resonances are observed, and upper limits are given for the product ΓX→γγBX→γγ. .AE
Published by Inst., Woodbury, NY |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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