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Glueballs composed of three gluons in the bag model

Глуболы, образованные тремя глуонами, в модеи «мешка»

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Il Nuovo Cimento A (1965-1970)

Summary

The spin-dependent energy shifts of glueballs composed of three gluons are studied in the MIT bag model systematically. The mass spectra of the three (TE)3 states and the seven (TE)2(TM) states are given, assuming that ι(1440) and θ(1640) are the(TE) (TM) and (TE)2 glueballs, respectively. We propose the possibility that ξ(2200) state is the 0++(TE)3 glueball. An exotic narrow 1−+ state is also expected to be seen in the radiative decay of J/ψ.

Riassunto

Si studiano gli spostamenti d'energia delle sfere di gluoni dipendenti dallo spin composti di tre gluoni nel modello a sacca del MIT sistematicamente. Si danno gli spettri di massa dei tre stati (TE)3 e dei sette stati(TE) 2(TM), ipotizzando che ι(1440) e θ(1640) siano le sfere di fuoco(TE) (TM) e (TE)2, rispettivamente. Si propone la possibilità che lo stato ξ(2200) sia la sfera di fuoco 0++(TE)3. Si prevede anche di osservare uno stato esotico stretto nel decadimento radiativo di J/ψ.

Резюме

В модели МИТ «мешка» систематически изучаются энергетические цдвиги, зависящие от спина, для глуболов, образованных тремя глуонами. Приводятся массовые спектры трех (TE)3 состояний и семи(TE) 2(TM) состояний, предполагая, что ι(1440) и θ(1640) представляют соответственно(TE)(TM) и (TE)2 глуболы. Мы предполагаем, что состояние ξ(2200) представляет глубол 0++(TE)3. В радиационном распаде J/ψ можно увидеть экзотическое узкое 1−+ состояние.

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Authors and Affiliations

  1. Department of Physics, Ehime University, Matsuyama, Japan

    K. Senba

  2. Science Education Laboratory, Ehime University, Matsuyama, Japan

    M. Tanimoto

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  1. K. Senba
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  2. M. Tanimoto
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Traduzione a cura della Redazione.

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Senba, K., Tanimoto, M. Glueballs composed of three gluons in the bag model. Nuov Cim A 87, 397–414 (1985). https://doi.org/10.1007/BF02902361

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  • DOI: https://doi.org/10.1007/BF02902361

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