Manual Discovery and Measurement of the Higgs Boson in the WW Decay Channel

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Contents:
  1. Discovery and Measurement of the Higgs Boson in the WW Decay Channel
  2. The Voyage of Discovery of the Higgs Boson at the LHC
  3. Implications of the Higgs discovery for the MSSM
  4. It’s a boson, but what sort?

At the Large Hadron Collider the collaboration of thousands of scientists and researchers across various fields, a significant breakthrough was achieved in its first data taking period: a new resonance was found in the searches for the predicted Standard Model Higgs boson.

New results proving that the top quark acquires its mass from the Higgs field

Precision measurements were employed to measure the mass of the resonance with the least possible uncertainty. This channel is one of the discovery channels, with quoted observed excess of 6. The discovery of a new resonance compatible with the Higgs boson is not enough to validate that is indeed the well-sought boson. For this reason, additional studies have been employed to identify the properties of the new resonance.

The results show that the spin number is confidently found to be zero. Similarly, only small deviations from the SM are observed in the CP study, but are comfortably compatible with it within the uncertainties. The possibility of mixed CP states was also studied and according to the Run-I data it is not fully excluded.

Abstract So far, the Standard Model is the most successful theory to summarise our knowledge on Particle Physics. Fingerprint Higgs bosons. Above all, a determination of the self-Higgs coupling could be made by searching for double Higgs production e. Besides the high precision study of the already observed Higgs, one should also continue to search for the heavy states that are predicted by SUSY, not only the superparticles but also the heavier Higgs bosons.

In conclusion, it is not yet time to give up on supersymmetry and on new physics in general but, rather, to work harder to be fully prepared for the more precise and larger data that will be delivered by the upgraded LHC. This review relies heavily on work performed in the last two years in collaboration with S. Alekhin, A. Arbey, J.

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Discovery and Measurement of the Higgs Boson in the WW Decay Channel

Baglio, M. Battaglia, A. Falkowski, R. Godbole, R. Grober, O. Lebedev, A. Lenz, N. Mahmoudi, L. Maiani, Y. Mambrini, B. Mellado, K. Mohan, G. Moreau, M. Muhlleitner, J. Quevillon, A. Polosa, V. Riquer and M. I thank them all for their input and for having made these two last years very fruitful and extremely exciting. Note that it is not entirely clear whether this mass is indeed the pole quark mass. The graviton-like spin-2 option is extremely unlikely and, already from the particle signal strengths in the various channels, it is ruled out in large classes of beyond the SM models; see e.

National Center for Biotechnology Information , U. The European Physical Journal. C, Particles and Fields. Published online May Abdelhak Djouadi. Author information Article notes Copyright and License information Disclaimer.

The Voyage of Discovery of the Higgs Boson at the LHC

Abdelhak Djouadi, Email: rf. Corresponding author. Received Nov 20; Accepted Nov Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author s and the source are credited. This article has been cited by other articles in PMC. Open in a separate window. A new parametrisation of the Higgs sector It was pointed out in Refs. Fit of the Higgs couplings and their ratios A large number of analyses of the Higgs couplings from the LHC data have been performed in the SM and its extensions and a partial list is given in Refs.

Invisible Higgs decays? Could the observed state be the heavier H boson?

Implications of the Higgs discovery for the MSSM

Higgs production with SUSY particles Finally, let us comment on the possibility of the Higgs bosons being produced in processes involving sparticles. What next? Acknowledgments This review relies heavily on work performed in the last two years in collaboration with S.

References 1. The CMS collaboration Phys. Higgs P. Englert F, Brout R. Gunion, H. Haber, G. Kane, S. Djouadi A. Drees, R. Godbole, P. Baer H, Tata X. Cambridge: Cambridge U Press; Haber HE, Hempfling R.

Reward Yourself

Haber, R. Hempfling, A. Hoang, Z. Phys, C 75 , Martin S.


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  3. Discovery and measurement of the Higgs boson in the WW decay channel | David C Hall.

Feng J, et al. Allanach B, et al.

It’s a boson, but what sort?

Heinemeyer S. Carena M, Haber H. See for instance H. Beringer, PDG , et al.