Summary
We have studied the Higgs-boson production in e+e− collisions in the √s=(0.1÷4) TeV region. In particular, the bremsstrahlung process associated with heavy quarks has been investigated in detail, comparing with the typical process\(e^ + e^ - \to \nu _e \bar \nu _e \) H0 at very high energy. It is found that the bremsstrahlung process is negligibly small if the top-quark mass is about 40 GeV and the further heavy quarks do not exist, but not negligible if the superheavy quarks exist in the TeV energy region.
Riassunto
Si è studiata la produzione di bosoni di Higgs nelle collisioni e+e− nella regione √s=(0.1÷4) TeV. In particolare, il processo di bremsstrahlung associato con quark pesanti è stato studiato in dettaglio confrontandolo con il processo tipico\(e^ + e^ - \to \nu _e \bar \nu _e \) H0 ad energia molto alta. Si trova che il processo di bremsstrahlung è trascurabilmente piccolo se la massa del quark top è di circa 40 GeV e gli ulteriori quark pesanti non esistono, ma non trascurabile se esistono quark superpesanti nella regione di energia dell’ordine dei TeV.
Реэюме
Мы исследуем обраэование боэона Хиггса в e+e− соударениях в области √s=(0.1÷4) ТзВ. В частности, подробно исследуется тормоэное иэлучение, обуслов-ленное тяжелыми кварками. Тормоэное иэлучение сравнивается с типичным про-цессом\(e^ + e^ - \to \nu _e \bar \nu _e \) H0 при очень высоких знергиях. Получено, что процесс тормоэного иэлучения является пренебрежимо малым, если масса верхнего кварка составляет 40 ГзВ, а другие тяжелые кварки не сушествуют. Однако процесс тормоэного иэлу-чения не является пренебрежимо малым, если сушествуют супертяжелые кварки в ТзВ-ной области знергии.
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Tanimoto, M., Kase, M. & Senba, K. Heavy-quark effect on the Higgs-boson production in e+e− collisions. Nuov Cim A 97, 65–76 (1987). https://doi.org/10.1007/BF02733839
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DOI: https://doi.org/10.1007/BF02733839