Determining the Higgs boson self-coupling at hadron colliders

By U. Baur, Tilman Plehn, D. Rainwater. 2002

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Inclusive Standard Model Higgs boson pair production at hadron colliders has the capability to determine the Higgs boson self-coupling, .W e present a detailed analysis of the gg ! HH ! (W + W )(W + W ) ! (jj‘)(jj‘ 0 ) and gg ! HH ! (W + W )(W + W ) ! (jj‘)(‘ 0 ‘ 00 )( ‘; ‘ 0 ;‘ 00 = e; ) signal channels, and the relevant background processes, for the CERN Large Hadron Collider, and a future Very Large Hadron Collider operating at a center-of-mass energy of 200 TeV. We also derive quantitative sensitivity limits for . We nd that it should be possible at the LHC with design luminosity to establish that the Standard Model Higgs boson has a non-zero self-coupling and that =SM can be restricted to a range of 0 { 3.8 at 95% condence level (CL) if its mass is between 150 and 200 GeV. At a 200 TeV collider with an integrated luminosity of 300 fb 1 , can be determined with an accuracy of 8 25% at 95% CL in the same mass range.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/6ce230dc0083c06660e09e6c2bbcddd291b9c87e

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In Nuclear and High Energy Physics

Citations in the corpus

Higgs Physics at the HL-LHC and HE-LHC (2019, background): “First, there is the threshold [327, 328, 329, 342, 343, 344] in the partonic centre of mass energy mhh ⇡ 2mh.”
Higgs boson self-coupling measurements using ratios of cross sections (2013, methodology): “ To remain conservative, we will assume that the theoretical errors on C HH and ˙ HH are 5% and 20%, respectively, in what follows. 4. Constraining the self-coupling In the studies conducted in Refs. [32,38], the Higgs self-coupling was constrained using the nal states bb , bb + and W+W W W (in the ”
The measurement of the Higgs self-coupling at the LHC: theoretical status (2012, methodology): “[81–86] with the recent ones heavily relying on jet-substructure techniques [87].”
Composite Higgs boson pair production at the LHC (2010, methodology): “In refs. [41, 42 ] such an analysis has been performed for the SM Higgs pair production in gluon fusion with subsequent decay of the W boson pairs into four jets and two same-sign leptons, respectively.”