Quarkonium production in SM Higgs decays
نویسنده
چکیده
We investigate the SM Higgs decays into heavy quarkonia J/ψ and Υ in both color-singlet and color-octet mechanisms. It is found that in J/ψ production the contribution through color-octet processes overwhelm that in color-singlet processes all the intermediate region MZ < MH0 < 2Mw and the fraction ratio is comparatively large, but in Υ production the contribution through color-octet mechanism is negligible. PACS number(s):12.38.Bx, 13.38.Dg, 14.40.Gx
منابع مشابه
Combined CDF and D 0 Upper Limits on Standard Model Higgs Boson Production with up to 8
We combine results from CDF and D0's direct searches for the standard model (SM) Higgs boson (H) produced in p¯ p collisions at the Fermilab Tevatron at √ s = 1.96 TeV. The results presented here include those channels which are most sensitive to Higgs bosons with mass between 130 and 200 GeV/c 2 , namely searches targeted at Higgs boson decays to W + W − , although acceptance for decays into τ...
متن کاملHIGLU and HDECAY: Programs for Higgs Boson Production at the LHC and Higgs Boson Decay Widths
The total cross section for Higgs boson production via the dominant gluon fusion mechanism including NLO [two-loop] QCD corrections can be calculated numerically with the program HIGLU. The QCD corrections are included for arbitrary Higgs and quark masses and increase the cross section at the LHC by up to a factor of 2. The source code HIGLU provides the evaluation of the production of the Stan...
متن کاملLight Higgs Searches at the Lhc Using Jet Substructure
One of the major goals of the LHC is to discover the Higgs boson, which is the only particle of the Standard Model (SM) that has not been seen yet at colliders. Even if we cannot predict its mass, SM precision electroweak fits seem to favour a low-mass Higgs,2 and LEP data excluded a mass below 114 GeV.3 That’s why we are going to focus on the search for a light Higgs boson at the LHC, assuming...
متن کاملA Double Parton Scattering Background to Associate WH and ZH Production at the LHC
s=14 TeV), is one of the most promising discovery channel for a SM Higgs particle with a mass below 135 GeV, where the Higgs decays into bb̄ final states is dominant. The experimental capability of recognizing the presence of b quarks in a complex hadronic final state has brought attention towards the final states with pairs for observing the production of the Higgs at the LHC. We point out that...
متن کاملMSSM Higgs Physics at Higher Orders
Various aspects of the Higgs boson phenomenology of the Minimal Supersymmetric Standard Model (MSSM) are reviewed. Emphasis is put on the effects of higher-order corrections. The masses and couplings are discussed in the MSSM with real and complex parameters. Higherorder corrections to Higgs boson production channels at a prospective e+e− linear collider are investigated. Corrections to Higgs b...
متن کامل