2013

Electroweak Precision Observables, New Physics and the Nature of a 126 GeV Higgs Boson

Ciuchini, Marco, Franco, Enrico, Mishima, Satoshi et al.

Understand

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, for the $\epsilon_{1,2,3,b}$ ones, for modified $Zb\bar{b}$ couplings 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.

Built on

A. Sirlin, Radiative corrections in the S U ( 2 ) L × U ⁡ ( 1 ) SU(2)_{L}\times U(1) theory: A simple renormalization framework
1980
Earlier work this paper cites.
D. Y. Bardin, P. K. Khristova, and O. Fedorenko, On the lowest order electroweak corrections to spin 1/2 fermion scattering: (I). The one-loop diagrammar
1980
Earlier work this paper cites.
D. Y. Bardin, P. K. Khristova, and O. Fedorenko, On the lowest order electroweak corrections to spin 1/2 fermion scattering: (II). The one-loop amplitudes
1982
Earlier work this paper cites.
W. Marciano and A. Sirlin, Radiative corrections to neutrino induced neutral current phenomena in the S U ( 2 ) L × U ⁡ ( 1 ) SU(2)_{L}\times U(1) theory
1985
Earlier work this paper cites.
D. Y. Bardin, S. Riemann, and T. Riemann, Electroweak one-loop corrections to the decay of the charged vector boson
1986
Earlier work this paper cites.
W. Buchmuller and D. Wyler, Effective Lagrangian analysis of new interactions and flavor conservation
1986
Earlier work this paper cites.
U. Amaldi, A. Bohm, L. Durkin, P. Langacker, A. K. Mann, et al., A comprehensive analysis of data pertaining to the weak neutral current and the intermediate vector boson masses
1987
Earlier work this paper cites.
A. Djouadi and C. Verzegnassi, Virtual very heavy top effects in LEP/SLC precision measurements
1987
Earlier work this paper cites.
G. Costa, J. R. Ellis, G. L. Fogli, D. V. Nanopoulos, and F. Zwirner, Neutral currents within and beyond the standard model
1988
Earlier work this paper cites.
A. Djouadi, 𝒪 ⁡ ( α α s ) {\cal O}(\alpha\alpha_{s}) vacuum polarization functions of the standard model gauge bosons
1988
Earlier work this paper cites.
D. Kennedy and B. Lynn, Electroweak radiative corrections with an effective Lagrangian: Four fermion processes
1989
Earlier work this paper cites.
D. Kennedy, B. Lynn, C. Im, and R. Stuart, Electroweak cross-sections and asymmetries at the Z 0 Z^{0}
1989
Earlier work this paper cites.
B. A. Kniehl, Two-loop corrections to the vacuum polarizations in perturbative QCD
1990
Earlier work this paper cites.
M. E. Peskin and T. Takeuchi, A new constraint on a strongly interacting Higgs sector
1990
Earlier work this paper cites.
P. Langacker and M.-x. Luo, Implications of precision electroweak experiments for M t M_{t} , ρ 0 \rho_{0} , sin 2 ⁡ θ W \sin^{2}\theta_{W} and grand unification
1991
Earlier work this paper cites.
G. Altarelli and R. Barbieri, Vacuum polarization effects of new physics on electroweak processes
1991
Earlier work this paper cites.
B. Grinstein and M. B. Wise, Operator analysis for precision electroweak physics
1991
Earlier work this paper cites.
F. Halzen and B. A. Kniehl, Δ r \Delta r beyond one loop
1991
Earlier work this paper cites.
M. E. Peskin and T. Takeuchi, Estimation of oblique electroweak corrections
1992
Earlier work this paper cites.
G. Altarelli, R. Barbieri, and S. Jadach, Toward a model independent analysis of electroweak data
1992
Earlier work this paper cites.
B. A. Kniehl and A. Sirlin, Dispersion relations for vacuum polarization functions in electroweak physics
1992
Earlier work this paper cites.
R. Barbieri, M. Beccaria, P. Ciafaloni, G. Curci, and A. Vicere, Radiative correction effects of a very heavy top
1992
Earlier work this paper cites.
G. Altarelli, R. Barbieri, and F. Caravaglios, Nonstandard analysis of electroweak precision data
1993
Earlier work this paper cites.
B. A. Kniehl and A. Sirlin, On the effect of the t t ¯ t\bar{t} threshold on electroweak parameters
1993
Earlier work this paper cites.
R. Barbieri, M. Beccaria, P. Ciafaloni, G. Curci, and A. Vicere, Two-loop heavy top effects in the standard model
1993
Earlier work this paper cites.
J. Fleischer, O. Tarasov, and F. Jegerlehner, Two-loop heavy top corrections to the ρ \rho parameter: A simple formula valid for arbitrary Higgs mass
1993
Earlier work this paper cites.
I. Maksymyk, C. Burgess, and D. London, Beyond S, T and U
1994
Earlier work this paper cites.
C. Burgess, S. Godfrey, H. Konig, D. London, and I. Maksymyk, A global fit to extended oblique parameters
1994
Earlier work this paper cites.
C. Burgess, S. Godfrey, H. Konig, D. London, and I. Maksymyk, Model independent global constraints on new physics
1994
Earlier work this paper cites.
J. Erler and P. Langacker, Implications of high precision experiments and the CDF top quark candidates
1995
Earlier work this paper cites.
L. Avdeev, J. Fleischer, S. Mikhailov, and O. Tarasov, 𝒪 ⁡ ( α α s 2 ) {\cal O}(\alpha\alpha_{s}^{2}) correction to the electroweak ρ \rho parameter
1995
Earlier work this paper cites.
K. Chetyrkin, J. H. Kuhn, and M. Steinhauser, Corrections of order 𝒪 ⁡ ( G F M t 2 α s 2 ) {\cal O}(G_{F}M_{t}^{2}\alpha_{s}^{2}) to the ρ \rho parameter
1995
Earlier work this paper cites.
K. Chetyrkin, J. H. Kuhn, and M. Steinhauser, QCD corrections from top quark to relations between electroweak parameters to order α s 2 \alpha_{s}^{2}
1995
Earlier work this paper cites.
J. Fleischer, O. Tarasov, and F. Jegerlehner, Two-loop large top mass corrections to electroweak parameters: Analytic results valid for arbitrary Higgs mass
1995
Earlier work this paper cites.
G. Altarelli, R. Barbieri, and F. Caravaglios, The epsilon variables for electroweak precision tests: A reappraisal
1995
Earlier work this paper cites.
A. Djouadi and P. Gambino, Electroweak gauge bosons selfenergies: Complete QCD corrections
1996
Earlier work this paper cites.
G. Degrassi, P. Gambino, and A. Vicini, Two-loop heavy top effects on the m Z m_{Z} - m W m_{W} interdependence
1996
Earlier work this paper cites.
A. Czarnecki and J. H. Kuhn, Nonfactorizable QCD and electroweak corrections to the hadronic Z Z boson decay rate
1996
Earlier work this paper cites.

Similar

P. Bamert, C. Burgess, J. M. Cline, D. London, and E. Nardi, R b R_{b} and new physics: A comprehensive analysis
1996
Cited alongside, same era.
K. Chetyrkin, B. A. Kniehl, and M. Steinhauser, Strong coupling constant with flavor thresholds at four loops in the M S ¯ \overline{MS} scheme
1997
Cited alongside, same era.
K. Chetyrkin, Quark mass anomalous dimension to O ⁡ ( α s 4 ) O(\alpha_{s}^{4})
1997
Cited alongside, same era.
G. Weiglein, Results for precision observables in the electroweak standard model at two-loop order and beyond
1998
Cited alongside, same era.
R. Harlander, T. Seidensticker, and M. Steinhauser, Complete corrections of O ⁡ ( α α s ) O(\alpha\alpha_{s}) to the decay of the Z Z boson into bottom quarks
1998
Cited alongside, same era.
G. Altarelli, R. Barbieri, and F. Caravaglios, Electroweak precision tests: A concise review
1998
Cited alongside, same era.
R. Barbieri and A. Strumia, What is the limit on the Higgs mass?
1999
Cited alongside, same era.
D. Y. Bardin and G. Passarino, The standard model in the making: Precision study of the electroweak interactions
1999
Cited alongside, same era.
G.-C. Cho and K. Hagiwara, Supersymmetry versus precision experiments revisited
2000
Cited alongside, same era.
K. Chetyrkin, J. H. Kuhn, and M. Steinhauser, RunDec: A Mathematica package for running and decoupling of the strong coupling and quark masses
2000
Cited alongside, same era.
G. Degrassi and P. Gambino, Two-loop heavy top corrections to the Z 0 Z^{0} boson partial widths
2000
Cited alongside, same era.
H. E. Haber and H. E. Logan, Radiative corrections to the Z b b ¯ Zb\bar{b} vertex and constraints on extended Higgs sectors
2000
Cited alongside, same era.

Then

A. Djouadi, G. Moreau, and F. Richard, Resolving the A b FB {}_{\rm FB}^{\rm b} puzzle in an extra dimensional model with an extended gauge structure
2007
Later among the works it cites.
R. Barbieri, B. Bellazzini, V. S. Rychkov, and A. Varagnolo, The Higgs boson from an extended symmetry
Original
2007
Later among the works it cites.
A. Caldwell, D. Kollar, and K. Kroninger, BAT: The Bayesian Analysis Toolkit
Original
2009
Later among the works it cites.
M. Awramik, M. Czakon, A. Freitas, and B. Kniehl, Two-loop electroweak fermionic corrections to sin 2 ⁡ θ eff b b ¯ \sin^{2}\theta^{b\bar{b}}_{\rm eff}
Original
2009
Later among the works it cites.
R. Contino, C. Grojean, M. Moretti, F. Piccinini, and R. Rattazzi, Strong double Higgs production at the LHC
Original
2010
Later among the works it cites.
K. Kumar, W. Shepherd, T. M. Tait, and R. Vega-Morales, Beautiful mirrors at the LHC
Original
2010
Later among the works it cites.
F. del Aguila, J. de Blas, and M. Perez-Victoria, Electroweak limits on general new vector bosons
Original
2010
Later among the works it cites.
G.-C. Cho, K. Hagiwara, Y. Matsumoto, and D. Nomura, The MSSM confronts the precision electroweak data and the muon g − 2 g-2
Original
2011
Later among the works it cites.
H. Burkhardt and B. Pietrzyk, Recent BES measurements and the hadronic contribution to the QED vacuum polarization
Original
2011
Later among the works it cites.
M. Davier, A. Hoecker, B. Malaescu, and Z. Zhang, Reevaluation of the hadronic contributions to the muon g − 2 g-2 and to α ⁡ ( M Z ) \alpha(M_{Z})
Original
2011
Later among the works it cites.
K. Hagiwara, R. Liao, A. D. Martin, D. Nomura, and T. Teubner, ( g − 2 ) μ (g-2)_{\mu} and α ⁡ ( M Z 2 ) \alpha(M_{Z}^{2}) re-evaluated using new precise data
Original
2011
Later among the works it cites.
F. Jegerlehner, Electroweak effective couplings for future precision experiments
Original
2011
Later among the works it cites.
L. Da Rold, Solving the A F B b A_{FB}^{b} anomaly in natural composite models
Original
2011
Later among the works it cites.
E. Alvarez, L. Da Rold, and A. Szynkman, A composite Higgs model analysis of forward-backward asymmetries in the production of tops at Tevatron and bottoms at LEP and SLC
Original
2011
Later among the works it cites.
R. Dermisek, S.-G. Kim, and A. Raval, New vector boson near the Z-pole and the puzzle in precision electroweak data
Original
2011
Later among the works it cites.
A. Djouadi, G. Moreau, and F. Richard, Forward-backward asymmetries of the bottom and top quarks in warped extra-dimensional models: LHC predictions from the LEP and Tevatron anomalies
Original
2011
Later among the works it cites.
F. del Aguila and J. de Blas, Electroweak constraints on new physics
Original
2011
Later among the works it cites.
ATLAS Collaboration, Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
Original
2012
Later among the works it cites.
A. Freitas and Y.-C. Huang, Electroweak two-loop corrections to sin 2 ⁡ θ eff b b ¯ \sin^{2}\theta_{\rm eff}^{b\bar{b}} and R b R_{b} using numerical Mellin-Barnes integrals
Original
2012
Later among the works it cites.
A. Azatov, R. Contino, and J. Galloway, Model-independent bounds on a light Higgs
Original
2012
Later among the works it cites.
Particle Data Group, Review of particle physics
2012
Later among the works it cites.
CDF and D0 Collaborations, Combination of the top-quark mass measurements from the Tevatron collider
Original
2012
Later among the works it cites.
ATLAS and CMS Collaborations, Combination of ATLAS and CMS results on the mass of the top quark using up to 4.9 fb -1
2012
Later among the works it cites.
S. Alekhin, A. Djouadi, and S. Moch, The top quark and Higgs boson masses and the stability of the electroweak vacuum
Original
2012
Later among the works it cites.
P. Baikov, K. Chetyrkin, J. Kuhn, and J. Rittinger, Complete 𝒪 ⁡ ( α s 4 ) {\cal O}(\alpha_{s}^{4}) QCD corrections to hadronic Z Z -decays
Original
2012
Later among the works it cites.
The Tevatron Electroweak Working Group for the CDF and D0 Collaborations, 2012 update of the combination of CDF and D0 results for the mass of the W W boson
Original
2012
Later among the works it cites.
O. Eberhardt et al., Impact of a Higgs boson at a mass of 126 GeV on the standard model with three and four fermion generations
Original
2012
Later among the works it cites.
M. Baak, M. Goebel, J. Haller, A. Hoecker, D. Kennedy, et al., The electroweak fit of the standard model after the discovery of a new boson at the LHC
Original
2012
Later among the works it cites.
R. Dermisek, S.-G. Kim, and A. Raval, Z’ near the Z-pole
Original
2012
Later among the works it cites.
A. Falkowski, S. Rychkov, and A. Urbano, What if the Higgs couplings to W W and Z Z bosons are larger than in the Standard Model?
Original
2012
Later among the works it cites.
ATLAS Collaboration, Combined measurements of the mass and signal strength of the Higgs-like boson with the ATLAS detector using up to 25 fb -1
2013
Closest in time.
CMS Collaboration, Observation of a new boson with mass near 125 GeV in p p pp collisions at s = 7 \sqrt{s}=7 and 8 TeV
Original
2013
Closest in time.
R. Contino, M. Ghezzi, C. Grojean, M. Muhlleitner, and M. Spira, Effective Lagrangian for a light Higgs-like scalar
Original
2013
Closest in time.
A. Akhundov, A. Arbuzov, S. Riemann, and T. Riemann, ZFITTER 1985-2013
Original
2013
Closest in time.
S. Bethke, World summary of α s \alpha_{s} (2012)
Original
2013
Closest in time.
B. Batell, S. Gori, and L.-T. Wang, Higgs couplings and precision electroweak data
Original
2013
Closest in time.
C. Grojean, E. E. Jenkins, A. V. Manohar, and M. Trott, Renormalization group scaling of Higgs operators and Γ ⁡ ( h → γ γ ) \Gamma(h\to\gamma\gamma)
Original
2013
Closest in time.
J. Elias-Miró, J. Espinosa, E. Masso, and A. Pomarol, Renormalization of dimension-six operators relevant for the Higgs decays h → γ γ , γ Z h\rightarrow\gamma\gamma,\gamma Z
Original
2013
Closest in time.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

Reading the bibliography…