https://doi.org/10.1051/epjconf/20136008004
Electroweak theory and global fit
1 INFN, Sezione di Roma Tre, Via della Vasca Navale 84, I-00146, Roma, Italy
2 INFN, Sezione di Roma, Piazzale A. Moro 2, I-00185, Roma, Italy
3 Dipartimento di Fisica, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185, Roma, Italy
a e-mail: Marco.Ciuchini@roma3.infn.it
b e-mail: Enrico.Franco@roma1.infn.it
c e-mail: Satoshi.Mishima@roma1.infn.it
d e-mail: Luca.Silvestrini@roma1.infn.it
Published online: 26 November 2013
We perform the fit of electroweak precision observables within the Standard Model with a 126 GeV Higgs boson, compare the results with the theoretical predictions and discuss the impact of recent experimental and theoretical improvements. We introduce New Physics contributions in a model-independent way and fit for the S, T and U parameters and for a modified Higgs coupling to vector bosons. We point out that composite Higgs models are very strongly constrained. Finally, we compute the bounds on dimension-six operators relevant for the electroweak fit.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
