Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-09-20
Phys.Rev.D64:015009,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
Revised version, 26 pages including 11 figures, ReVTeX
Scientific paper
10.1103/PhysRevD.64.015009
The neutral Higgs pair production at the LHC is studied in the MSSM, the large extra dimensional (ADD) model and the Randall-Sundrum (RS) model, where the total cross section can be significantly enhanced compared to that in the SM. The $p_{_T}$, invariant mass and rapidity distributions of each model have been shown to be distinctive: The ADD model raises the $p_T$ and invariant mass distributions at high scales of $p_T$ and invariant mass; in the RS model resonant peaks appear after the SM contribution dies away; the SM and the MSSM distributions drop rapidly at those high scales; in the ADD and the RS models the rapidity distributions congregate more around the center. It is concluded that various distributions of the Higgs pair production at the LHC with restrictive kinematic cuts would provide one of the most robust signals for the extra dimensional effects.
Kim Chang Sub
Lee Kang Young
Song JeongHyeon
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