Measuring the Higgs boson mass with transverse mass variables

Details Measuring the Higgs boson mass with transverse mass variables Measuring the Higgs boson mass with transverse mass variables

2010-08-16

arxiv.org/abs/1008.2690v2

Phys.Rev.D82:113017,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 9 figures, 3 tables; Version accepted for publication in PRD

Scientific paper

10.1103/PhysRevD.82.113017

We provide a comparative study of the Higgs boson mass measurements based on two approaches to the dileptonic decay of W bosons produced by the Higgs boson decay, one using the kinematic variable M_T^true and the other using the M_T2-assisted on-shell reconstruction of the invisible neutrino momenta. We find that these two approaches can determine the Higgs boson mass with a similar accuracy for both of the two main production mechanisms of the SM Higgs boson at the LHC, i.e. the gluon-gluon fusion and the weak vector boson fusion. We also notice that the Higgs signal distribution for the gluon-gluon fusion becomes narrower under the M_T2 cut, while the corresponding background distribution becomes flatter, indicating that one might be able to reduce the systematic uncertainties of mass measurement with an appropriate M_T2 cut.

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