Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-04-09
Phys.Rev. D51 (1995) 1051-1063
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages; requires phyzzx.tex and tables.tex; full postscript file including embedded figures available via anonymous ftp at u
Scientific paper
10.1103/PhysRevD.51.1051
We compute an array of Standard Model Higgs boson ($\hsm$) signals and backgrounds for a possible upgrade of the Tevatron to $E_{\rm cm}=4\tev$. Taking $\mt\geq 140\gev$, and assuming a total accumulated luminosity of $L=30\fbi$, we find that a Standard Model Higgs boson with $\mhsm\lsim 110\gev$ could almost certainly be detected using the $\wpm\hsm\rta l\nu b\anti b$ mode. A Higgs boson with mass between $\sim 120\gev$ and $\sim 140\gev$ or above $\sim 230-250\gev$ almost certainly would not be seen. A Higgs boson with $\mhsm\sim 150\gev$ or $200\lsim\mhsm\lsim 230-250\gev$ has a decent chance of being detected in the $ZZ\rta 4l$ mode. There would also be some possibility of discovering the $\hsm$ in the $WW\rta l\nu jj$ mode for $150\lsim\mhsm\lsim 200\gev$. Finally, hints of an event excess in the $WW\rta ll \nu\nu$ mode due to the $\hsm$ might emerge for $140\lsim\mhsm\lsim 180\gev$. Given the difficult nature of the Higgs boson signals for $\mhsm$ values beyond the reach of LEP-200, and the discontinuous $\mhsm$ range that could potentially be probed, justification of an upgrade of the Tevatron to $4\tev$ on the basis of its potential for Standard Model Higgs boson discovery would seem inappropriate.
Gunion John F.
Han Tao
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