Speaker
Collaboration ATLAS
(_)
Description
In this note, the prospects for experimental studies of the general HVV tensor coupling using the H → ZZ∗ → 4l decay are presented. The sensitivity of the ATLAS experi- ment to non-Standard Model contributions to the HZZ vertex is estimated for 300 fb−1 and 3000 fb−1 of LHC data at √s = 14 TeV. The exclusion limits on the non-Standard Model CP-even coupling g2 and CP-odd coupling g4, given the Standard Model Higgs boson sig- nal, are estimated. The sensitivity of the ATLAS experiment to the complex structure of the non-Standard Model couplings is demonstrated. The exclusion limits are established for individual components of g2 and g4: |g2|/g1, |g4|/g1, R(g2)/g1, I(g2)/g1, R(g4)/g1 and I(g4 )/g1 . The obtained results are translated to the ( fg2 , fg4 , φg2 , φg4 ) parametrisation as
fg2 < 0.29 (0.12) at 95% CL and fg4 < 0.15 (0.037) at 95% CL for 300 fb−1 (3000 fb−1) respectively.
