Rencontres de Moriond EW 2008

Yukawa corrections to b anti-b H production (LHC)

4 mars 2008, 17:42

5m

Van Gogh (7th floor) (La Thuile)

Young Scientist Forum 1

Orateur

M. Duc Ninh Le (LAPTH)

Description

We investigate the leading one-loop Yukawa corrections to the process $pp->b\overline{b}H$ in the SM. We find that the NLO correction to the cross section is about $-4\mathrm{\%}$ if the Higgs mass is $120$GeV. In the limit of vanishing bottom-Higgs Yukawa coupling the cross section is generated solely at the loop level. This contribution is very small at $M_H\sim 120$GeV and increases with growing Higgs mass, reaching about $+17\mathrm{\%}$ of the cross section when the Higgs mass is about $150$GeV. The leading Landau singularity occurs in a scalar box integral if $M_H>2M_W$.

Documents de présentation

Paper

gbbH_img_width_2D.eps

gbbH_real_width_2D.eps

ggbbH_tree_loop.eps

moriond.sty

p_LL_mH_h2_detail.eps

proceedings.pdf

proceedings.ps

proceedings.tex

p_TL_mH_final_detail.eps

Slides

le.pdf