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Rencontres de Moriond 2013
Robust determination of the scalar boson couplings (4366) - Mercredi 06 mars 2013 09:30 - 09:55

Robust determination of the scalar boson couplings

We study the indirect effects of new physics on the phenomenology of the recently discovered state associated to the electroweak symmetry breaking sector. In a model independent framework these effects can be parametrized in terms of an effective Lagrangian at the electroweak scale. In a theory in which the SU(2)_L x U(1)_Y gauge symmetry is linearly realized they appear at lowest order as dimension-six operators, containing all the SM fields including the light scalar doublet, with unknown coefficients. We discuss the choice of operator basis which allows us to make better use of all the available data to determine the coefficients of the new operators. We illustrate our present knowledge of those by performing a global 5-parameter fit to the existing data which allows simultaneous determination of the Higgs couplings to gluons, electroweak gauge bosons, bottom quarks, and tau leptons.

Pf. Oscar Jose Pinto Eboli (Universidade de São Paulo)

Physique

Toutes les vidéos de l'évenement Rencontres de Moriond 2013 (14 videos)

00:33:31.03

2013-03-06

08:30 - 09:00 : Study of Standard Model Scalar Production in Bosonic Decay Chann...

00:35:07.02

2013-03-06

09:00 - 09:30 : BEH detection to boson pairs in ATLAS

00:24:50.02

2013-03-06

09:30 - 09:55 : Robust determination of the scalar boson couplings

00:23:58.03

2013-03-06

09:55 - 10:15 : Operators evolution and the Standard Model Scalar

00:21:08.04

2013-03-06

10:35 - 10:55 : Tevatron SM Scalar Boson results - updated inputs and individual...

00:26:04.02

2013-03-06

10:55 - 11:20 : Study of BEH Production in Fermionic decay channels in CMS

00:31:42.03

2013-03-06

11:20 - 12:00 : Searches for the BEH boson into fermions at ATLAS

00:20:40.03

2013-03-06

17:00 - 17:20 : Maximal deviations of the scalar boson couplings if no further pa...

00:17:43.03

2013-03-06

17:20 - 17:40 : Tevatron Combination and BEH Properties

00:19:47.02

2013-03-06

17:40 - 18:00 : Electroweek symmetry breaking and the SM Scalar

00:35:36.02

2013-03-06

18:00 - 18:25 : Combination of results on the BEH Boson in Atlas

00:30:52.02

2013-03-06

18:45 - 19:10 : Scalar potential and stability

00:16:15.02

2013-03-06

19:10 - 19:30 : Stabilization of the electroweak vacuum by a scalar threshold eff...

00:20:48.02

2013-03-06

19:30 - 20:00 : Combination and interpretation of Scalar Boson search results fro...

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