Statistical approach to Higgs boson couplings in the standard model effective field theory
Abstract
We perform a parameter fit in the Standard Model Effective Field Theory (SMEFT) with an emphasis on using regularized linear regression to tackle the issue of the large number of parameters in the SMEFT. In regularized linear regression a positive definite function of the parameters of interest is added to the usual cost function. A cross-validation is performed to try to determine the optimal value of the regularization parameter to use, but it selects the Standard Model (SM) as the best model to explain the measurements. Nevertheless as proof of principle of this technique we apply it to fitting Higgs boson signal strengths in SMEFT, including the latest Run-2 results. Results are presented in terms of the eigensystem of the covariance matrix of the least squares estimators as it has a degree model-independent to it. We find several results in this initial work: the SMEFT predicts the total width of the Higgs boson to be consistent with the SM prediction; the ATLAS and CMS experiments at the LHC are currently sensitive to non-resonant double Higgs boson production. Constraints are derived on the viable parameter space for electroweak baryogenesis in the SMEFT, reinforcing the notion that a first order phase transitionmore »
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1416847
- Alternate Identifier(s):
- OSTI ID: 1414827
- Report Number(s):
- BNL-114867-2017-JA
Journal ID: ISSN 2470-0010; PRVDAQ; 015007
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 1; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; standard model; SMEFT: higgs; boson; ATLAS; CMS; baryogenesis
Citation Formats
Murphy, Christopher W. Statistical approach to Higgs boson couplings in the standard model effective field theory. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.97.015007.
Murphy, Christopher W. Statistical approach to Higgs boson couplings in the standard model effective field theory. United States. https://doi.org/10.1103/PhysRevD.97.015007
Murphy, Christopher W. Fri .
"Statistical approach to Higgs boson couplings in the standard model effective field theory". United States. https://doi.org/10.1103/PhysRevD.97.015007.
@article{osti_1416847,
title = {Statistical approach to Higgs boson couplings in the standard model effective field theory},
author = {Murphy, Christopher W.},
abstractNote = {We perform a parameter fit in the Standard Model Effective Field Theory (SMEFT) with an emphasis on using regularized linear regression to tackle the issue of the large number of parameters in the SMEFT. In regularized linear regression a positive definite function of the parameters of interest is added to the usual cost function. A cross-validation is performed to try to determine the optimal value of the regularization parameter to use, but it selects the Standard Model (SM) as the best model to explain the measurements. Nevertheless as proof of principle of this technique we apply it to fitting Higgs boson signal strengths in SMEFT, including the latest Run-2 results. Results are presented in terms of the eigensystem of the covariance matrix of the least squares estimators as it has a degree model-independent to it. We find several results in this initial work: the SMEFT predicts the total width of the Higgs boson to be consistent with the SM prediction; the ATLAS and CMS experiments at the LHC are currently sensitive to non-resonant double Higgs boson production. Constraints are derived on the viable parameter space for electroweak baryogenesis in the SMEFT, reinforcing the notion that a first order phase transition requires fairly low scale Beyond the SM physics. Lastly, we study which future experimental measurements would give the most improvement on the global constraints on the Higgs sector of the SMEFT.},
doi = {10.1103/PhysRevD.97.015007},
journal = {Physical Review D},
number = 1,
volume = 97,
place = {United States},
year = {Fri Jan 12 00:00:00 EST 2018},
month = {Fri Jan 12 00:00:00 EST 2018}
}
https://doi.org/10.1103/PhysRevD.97.015007
Web of Science
Works referenced in this record:
Evidence for the H → b b ¯ $$ H\to b\overline{b} $$ decay with the ATLAS detector
journal, December 2017
- Aaboud, M.; Aad, G.; Abbott, B.
- Journal of High Energy Physics, Vol. 2017, Issue 12
The anatomy of electroweak symmetry breaking
journal, February 2008
- Djouadi, Abdelhak
- Physics Reports, Vol. 457, Issue 1-4
Bayesian fit of exclusive b → s $ \overline \ell $ ℓ decays: the standard model operator basis
journal, August 2012
- Beaujean, Frederik; Bobeth, Christoph; van Dyk, Danny
- Journal of High Energy Physics, Vol. 2012, Issue 8
On the consistent use of constructed observables
journal, February 2015
- Trott, Michael
- Journal of High Energy Physics, Vol. 2015, Issue 2
Comprehensive Bayesian analysis of rare (semi)leptonic and radiative $$\varvec{B}$$ B decays
journal, June 2014
- Beaujean, Frederik; Bobeth, Christoph; van Dyk, Danny
- The European Physical Journal C, Vol. 74, Issue 6
A Bayesian view of the Higgs sector with higher dimensional operators
journal, July 2013
- Dumont, Beranger; Fichet, Sylvain; von Gersdorff, Gero
- Journal of High Energy Physics, Vol. 2013, Issue 7
Renormalization group constraints on new top interactions from electroweak precision data
journal, September 2015
- de Blas, J.; Chala, M.; Santiago, J.
- Journal of High Energy Physics, Vol. 2015, Issue 9
Searches for the Zγ decay mode of the Higgs boson and for new high-mass resonances in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector
journal, October 2017
- Aaboud, M.; Aad, G.; Abbott, B.
- Journal of High Energy Physics, Vol. 2017, Issue 10
Towards the ultimate SM fit to close in on Higgs physics
journal, January 2014
- Pomarol, Alex; Riva, Francesco
- Journal of High Energy Physics, Vol. 2014, Issue 1
Precision electroweak analysis after the Higgs boson discovery
journal, August 2014
- Wells, James D.; Zhang, Zhengkang
- Physical Review D, Vol. 90, Issue 3
Higgs coupling measurements at the LHC
journal, July 2016
- Englert, Christoph; Kogler, Roman; Schulz, Holger
- The European Physical Journal C, Vol. 76, Issue 7
CP -conserving two-Higgs-doublet model: The approach to the decoupling limit
journal, April 2003
- Gunion, John F.; Haber, Howard E.
- Physical Review D, Vol. 67, Issue 7
Measurements of properties of the Higgs boson decaying into the four-lepton final state in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV
journal, November 2017
- Sirunyan, A. M.; Tumasyan, A.; Adam, W.
- Journal of High Energy Physics, Vol. 2017, Issue 11
Flavour physics from an approximate U(2)3 symmetry
journal, July 2012
- Barbieri, Riccardo; Buttazzo, Dario; Sala, Filippo
- Journal of High Energy Physics, Vol. 2012, Issue 7
Testing the electroweak phase transition and electroweak baryogenesis at the LHC and a circular electron-positron collider
journal, May 2016
- Huang, Fa Peng; Gu, Pei-Hong; Yin, Peng-Fei
- Physical Review D, Vol. 93, Issue 10
Complete Higgs sector constraints on dimension-6 operators
journal, July 2014
- Ellis, John; Sanz, Verónica; You, Tevong
- Journal of High Energy Physics, Vol. 2014, Issue 7
Electroweak precision observables and Higgs-boson signal strengths in the Standard Model and beyond: present and future
journal, December 2016
- de Blas, J.; Ciuchini, M.; Franco, E.
- Journal of High Energy Physics, Vol. 2016, Issue 12
Effective operator contributions to the oblique parameters
journal, July 1998
- Sánchez-Colón, G.; Wudka, J.
- Physics Letters B, Vol. 432, Issue 3-4
Constraining Higgs boson effective couplings at electron-positron colliders
journal, March 2017
- Khanpour, Hamzeh; Najafabadi, Mojtaba Mohammadi
- Physical Review D, Vol. 95, Issue 5
Right-handed charged currents in the era of the Large Hadron Collider
journal, May 2017
- Alioli, S.; Cirigliano, V.; Dekens, W.
- Journal of High Energy Physics, Vol. 2017, Issue 5
Using data within a Bayesian analysis of decays
journal, July 2016
- Meinel, Stefan; van Dyk, Danny
- Physical Review D, Vol. 94, Issue 1
The Higgs legacy of the LHC Run I
journal, August 2015
- Corbett, Tyler; Éboli, Oscar J. P.; Gonçalves, Dorival
- Journal of High Energy Physics, Vol. 2015, Issue 8
Erratum to: Comprehensive Bayesian analysis of rare (semi)leptonic and radiative B decays
journal, December 2014
- Beaujean, Frederik; Bobeth, Christoph; van Dyk, Danny
- The European Physical Journal C, Vol. 74, Issue 12
Incorporating doubly resonant W ± data in a global fit of SMEFT parameters to lift flat directions
journal, September 2016
- Berthier, Laure; Bjørn, Mikkel; Trott, Michael
- Journal of High Energy Physics, Vol. 2016, Issue 9
Robust determination of the Higgs couplings: Power to the data
journal, January 2013
- Corbett, Tyler; Éboli, O. J. P.; Gonzalez-Fraile, J.
- Physical Review D, Vol. 87, Issue 1
Role of low-energy observables in precision Higgs boson analyses
journal, April 2015
- Petrov, Alexey A.; Pokorski, Stefan; Wells, James D.
- Physical Review D, Vol. 91, Issue 7
Determining Triple Gauge Boson Couplings from Higgs Data
journal, July 2013
- Corbett, Tyler; Éboli, O. J. P.; Gonzalez-Fraile, J.
- Physical Review Letters, Vol. 111, Issue 1
A global view on the Higgs self-coupling
journal, September 2017
- Di Vita, S.; Grojean, C.; Panico, G.
- Journal of High Energy Physics, Vol. 2017, Issue 9
2, 84, 30, 993, 560, 15456, 11962, 261485, . . .: higher dimension operators in the SM EFT
journal, August 2017
- Henning, Brian; Lu, Xiaochuan; Melia, Tom
- Journal of High Energy Physics, Vol. 2017, Issue 8
Probing the Higgs self coupling via single Higgs production at the LHC
journal, December 2016
- Degrassi, G.; Giardino, P. P.; Maltoni, F.
- Journal of High Energy Physics, Vol. 2016, Issue 12
Effective field theory analysis of double Higgs boson production via gluon fusion
journal, August 2015
- Azatov, Aleksandr; Contino, Roberto; Panico, Giuliano
- Physical Review D, Vol. 92, Issue 3
Constrained curve fitting
journal, March 2002
- Lepage, G. P.; Clark, B.; Davies, C. T. H.
- Nuclear Physics B - Proceedings Supplements, Vol. 106-107
The global electroweak fit at NNLO and prospects for the LHC and ILC
journal, September 2014
- Baak, M.; Cúth, J.; Haller, J.
- The European Physical Journal C, Vol. 74, Issue 9
Constraining the top-Higgs sector of the standard model effective field theory
journal, August 2016
- Cirigliano, V.; Dekens, W.; de Vries, J.
- Physical Review D, Vol. 94, Issue 3
Standard model EFT and extended scalar sectors
journal, July 2017
- Dawson, Sally; Murphy, Christopher W.
- Physical Review D, Vol. 96, Issue 1
The effective Standard Model after LHC Run I
journal, March 2015
- Ellis, John; Sanz, Verónica; You, Tevong
- Journal of High Energy Physics, Vol. 2015, Issue 3
Measurements of the Higgs boson production and decay rates and coupling strengths using pp collision data at $$\sqrt{s}=7$$ s = 7 and 8 TeV in the ATLAS experiment
journal, January 2016
- Aad, G.; Abbott, B.; Abdallah, J.
- The European Physical Journal C, Vol. 76, Issue 1
Global approach to top-quark flavor-changing interactions
journal, April 2015
- Durieux, Gauthier; Maltoni, Fabio; Zhang, Cen
- Physical Review D, Vol. 91, Issue 7
Semileptonic -physics anomalies: A general EFT analysis within flavor symmetry
journal, July 2017
- Bordone, Marzia; Isidori, Gino; Trifinopoulos, Sokratis
- Physical Review D, Vol. 96, Issue 1
Consistent constraints on the Standard Model Effective Field Theory
journal, February 2016
- Berthier, Laure; Trott, Michael
- Journal of High Energy Physics, Vol. 2016, Issue 2
First-order electroweak phase transition in the standard model with a low cutoff
journal, February 2005
- Grojean, Christophe; Servant, Géraldine; Wells, James D.
- Physical Review D, Vol. 71, Issue 3
The leptonic future of the Higgs
journal, September 2017
- Durieux, Gauthier; Grojean, Christophe; Gu, Jiayin
- Journal of High Energy Physics, Vol. 2017, Issue 9
Searching for new physics in the three-body decays of the Higgs-like particle
journal, October 2013
- Grinstein, Benjamín; Murphy, Christopher W.; Pirtskhalava, David
- Journal of High Energy Physics, Vol. 2013, Issue 10
Effective field theory and electroweak baryogenesis in the singlet-extended Standard Model
journal, February 2016
- Damgaard, P. H.; Haarr, A.; O’Connell, D.
- Journal of High Energy Physics, Vol. 2016, Issue 2
Electroweak precision observables, new physics and the nature of a 126 GeV Higgs boson
journal, August 2013
- Ciuchini, Marco; Franco, Enrico; Mishima, Satoshi
- Journal of High Energy Physics, Vol. 2013, Issue 8
Modifications to the properties of the Higgs boson
journal, May 2006
- Manohar, Aneesh V.; Wise, Mark B.
- Physics Letters B, Vol. 636, Issue 2
Effective theory analysis of precision electroweak data
journal, April 2005
- Han, Zhenyu; Skiba, Witold
- Physical Review D, Vol. 71, Issue 7
Model-independent precision constraints on dimension-6 operators
journal, February 2015
- Falkowski, Adam; Riva, Francesco
- Journal of High Energy Physics, Vol. 2015, Issue 2
Status and prospects of precision analyses with
journal, February 2016
- Wells, James D.; Zhang, Zhengkang
- Physical Review D, Vol. 93, Issue 3
Time to Go Beyond Triple-Gauge-Boson-Coupling Interpretation of Pair Production
journal, January 2017
- Zhang, Zhengkang
- Physical Review Letters, Vol. 118, Issue 1
Search for a Higgs boson decaying into a Z and a photon in pp collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> and </mml:mtext><mml:mn>8</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math>
journal, November 2013
- Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
- Physics Letters B, Vol. 726, Issue 4-5
Dimension-six terms in the Standard Model Lagrangian
journal, October 2010
- Grzadkowski, B.; Iskrzyński, M.; Misiak, M.
- Journal of High Energy Physics, Vol. 2010, Issue 10
Probing the electroweak phase transition at the LHC
journal, March 2016
- Huang, Peisi; Joglekar, Aniket; Li, Bing
- Physical Review D, Vol. 93, Issue 5
Low-energy structure of little Higgs models
journal, July 2004
- Kilian, Wolfgang; Reuter, Jürgen
- Physical Review D, Vol. 70, Issue 1
Disguising the oblique parameters
journal, April 2006
- Grojean, Christophe; Skiba, Witold; Terning, John
- Physical Review D, Vol. 73, Issue 7
From deep inelastic scattering to heavy-flavor semileptonic decays: Total rates into multihadron final states from lattice QCD
journal, November 2017
- Hansen, Maxwell T.; Meyer, Harvey B.; Robaina, Daniel
- Physical Review D, Vol. 96, Issue 9
Chiral quarks and the non-relativistic quark model
journal, March 1984
- Manohar, Aneesh; Georgi, Howard
- Nuclear Physics B, Vol. 234, Issue 1
Estimation of oblique electroweak corrections
journal, July 1992
- Peskin, Michael E.; Takeuchi, Tatsu
- Physical Review D, Vol. 46, Issue 1
Cornering dimension-6 HV V interactions at high energy LHC: the role of event ratios
journal, September 2015
- Banerjee, Shankha; Mandal, Tanumoy; Mellado, Bruce
- Journal of High Energy Physics, Vol. 2015, Issue 9
Anomalies in B-decays and U(2) flavor symmetry
journal, February 2016
- Barbieri, Riccardo; Isidori, Gino; Pattori, Andrea
- The European Physical Journal C, Vol. 76, Issue 2
Scheming in the SMEFT. . . and a reparameterization invariance!
journal, July 2017
- Brivio, Ilaria; Trott, Michael
- Journal of High Energy Physics, Vol. 2017, Issue 7
Feynman rules for the Standard Model Effective Field Theory in R ξ -gauges
journal, June 2017
- Dedes, A.; Materkowska, W.; Paraskevas, M.
- Journal of High Energy Physics, Vol. 2017, Issue 6
Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV
journal, August 2016
- Aad, G.; Abbott, B.; Abdallah, J.
- Journal of High Energy Physics, Vol. 2016, Issue 8
Update of the electroweak precision fit, interplay with Higgs-boson signal strengths and model-independent constraints on new physics
journal, April 2016
- Ciuchini, Marco; Franco, Enrico; Mishima, Satoshi
- Nuclear and Particle Physics Proceedings, Vol. 273-275
B-decay anomalies in a composite leptoquark model
journal, December 2016
- Barbieri, Riccardo; Murphy, Christopher W.; Senia, Fabrizio
- The European Physical Journal C, Vol. 77, Issue 1
Electroweak baryogenesis with anomalous Higgs couplings
journal, April 2016
- Kobakhidze, Archil; Wu, Lei; Yue, Jason
- Journal of High Energy Physics, Vol. 2016, Issue 4
Probing Higgs boson couplings in H + γ production at the LHC
journal, October 2017
- Khanpour, Hamzeh; Khatibi, Sara; Mohammadi Najafabadi, Mojtaba
- Physics Letters B, Vol. 773
eHDECAY: An implementation of the Higgs effective Lagrangian into HDECAY
journal, December 2014
- Contino, Roberto; Ghezzi, Margherita; Grojean, Christophe
- Computer Physics Communications, Vol. 185, Issue 12
Global Constraints on Anomalous Triple Gauge Couplings in the Effective Field Theory Approach
journal, January 2016
- Falkowski, Adam; González-Alonso, Martín; Greljo, Admir
- Physical Review Letters, Vol. 116, Issue 1
Towards consistent Electroweak Precision Data constraints in the SMEFT
journal, May 2015
- Berthier, Laure; Trott, Michael
- Journal of High Energy Physics, Vol. 2015, Issue 5
The gauge-Higgs legacy of the LHC Run I
journal, July 2016
- Butter, Anja; Éboli, Oscar J. P.; Gonzalez-Fraile, J.
- Journal of High Energy Physics, Vol. 2016, Issue 7
Search for the Dimuon Decay of the Higgs Boson in Collisions at with the ATLAS Detector
journal, August 2017
- Aaboud, M.; Aad, G.; Abbott, B.
- Physical Review Letters, Vol. 119, Issue 5