A fast track towards the %26apos;Higgs%26apos; spin and parity

作者：Ellis John^*; Hwang Dae Sung; Sanz Veronica; You Tevong

来源：The Journal of High Energy Physics, 2012, (11): 134.

DOI：10.1007/JHEP11(2012)134

• Higgs Physics
• Beyond Standard Model

The LHC experiments ATLAS and CMS have discovered a new boson that resembles the long-sought Higgs boson: it cannot have spin one, and has couplings to other particles that increase with their masses, but the spin and parity remain to be determined. We show here that the %26apos;Higgs%26apos; + gauge boson invariant-mass distribution in %26apos;Higgs%26apos;-strahlung events at the Tevatron or the LHC would be very different under the J(P) = 0(+), 0(-) and 2(+) hypotheses. Our analysis is based on simulations of the experimental event selections and cuts using PYTHIA and Delphes, and incorporates statistical samples of %26apos;toy%26apos; experiments. The observation of %26apos;Higgs%26apos;-strahlung at the Tevatron and the expected peaking of backgrounds at low invariant masses suggest that this process could provide a fast-track indicator of the %26apos;Higgs%26apos; spin and parity.

• 出版日期2012-11