Neutral technicolor pseudo Goldstone bosons production and QCD background at the SSC

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1990
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Kuo, Wang-Chuang
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Bing-Lin Young
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Physics and Astronomy
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The production of the neutral technicolor pseudo Goldstone bosons, P[superscript]0[superscript]' and Psp80[superscript]', at large transverse momentum in pp collisions, pp → g(q)P[superscript]0[superscript]' (Psp80[superscript]')X has been investigated in reactions at a high energy collider such as the SSC. The major two-body and three-body decay modes in tree diagrams are investigated in detail. The t[macron] t decay channel would dominate both the decays of P[superscript]0[superscript]' and Psp80[superscript]' if it is allowed. Otherwise, gg and 3g will be the dominant decay modes unless the mass of the P[superscript]0[superscript]' and Psp80[superscript]' are below 40 GeV, where b[macron] b becomes dominant. According to the QCD backgrounds, which we have also investigated in detail in this work, the signal for t[macron] t is much larger than the background and will be the ideal signal for detecting these bosons. However, in the absence of the t[macron] t channel, the [tau][macron] [tau] mode can be used to identify P[superscript]0[superscript]' up to m P = 300 GeV in the transverse momentum range P⊥ < 100 GeV. Similarly, the b[macron] b decay mode can serve us a signal to identify Psp80[superscript]' up to m P = 300 GeV for P⊥ between 500 and 700 GeV. Our results show that these high transverse momentum production processes are useful for the searching for the P[superscript]0[superscript]' and Psp80[superscript]' at the SSC.

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Mon Jan 01 00:00:00 UTC 1990