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Ultraheavy quarkonium and its production in multi-TeV hadron colliders |
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| Authors: | H. Inazawa T. Morii J. Morishita |
| Affiliation: | 1. Department of English and American Literature, Shoin Women's University, Nada, Kobe 657, Japan 2. Graduate School of Science and Technology and College of Liberal Arts, Kobe University, Nada, Kobe 657, Japan 3. Faculty of Foreign Languages, Himeji Dokkyo University, Kami-ohno, Himeji 670, Japan |
| Abstract: | Based on the standard model with two Higgs-doublets, we study physics of ultraheavy quarkonia which are composed of superheavy (such as 4-th generation) quarks. Owing to the strong Higgs-boson exchange force over the gluon exchange force, the situation of the mass levels of such quarkonia becomes drastically different from the ordinary qaurkonia like (cbar c) or (bbar b) . The hyperfine splitting becomes larger than the fine splitting. The production rate of such quarkonia increases largely in multi-TeV colliders. Feasibility for observing such quarkonia is discussed. |
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