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preprints:2006:ttp06-14 [2016/03/17 11:03] (current)
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 +====== TTP06-14 Top Quark Mediated Higgs Decay into Hadrons to Order $\alpha_s^5$ ====== 
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 +   <​hidden TTP06-14 ​ Top Quark Mediated Higgs Decay into Hadrons to Order $\alpha_s^5$ > We present in analytic form the O(alpha_s^5) correction to the H->gg 
 + ​partial width of the standard-model Higgs boson with intermediate mass 
 + ​M_H<​2M_t. Its knowledge is useful because the O(alpha_s^4) correction 
 + is sizeable (around 20%). For M_H=120 GeV, the resulting QCD 
 + ​correction factor reads 
 + 1 + (215/12) alpha_s^(5)(M_H)/​pi 
 + + 152.5 (alpha_s^(5)(M_H)/​pi)^2 
 + + 381.5 (alpha_s^(5)(M_H)/​pi)^3 
 + ​\approx 1+0.65+0.20+0.02. 
 + The new four-loop correction increases the total Higgs-boson hadronic 
 + width by a small amount of order 1 promille and stabilizes 
 + ​significantly the residual scale dependence. 
 + </​hidden>​ 
 +|**P.A. Baikov and K.G. Chetyrkin** ​ |  
 +|**  Phys. Rev. Lett.  97 061803 2006  **  | 
 +| {{preprints:​2006:​ttp06-14.pdf|PDF}} {{preprints:​2006:​ttp06-14.ps|PostScript}} [[http://​arxiv.org/​abs/​hep-ph/​0604194|arXiv]] ​  | 
 +| |