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Related papers: Complete Higgs Sector Constraints on Dimension-6 O…

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Due to the absence of tantalising hints for new physics during the LHC's run 1, the extension of the Higgs sector by dimension six operators will provide the new phenomenological standard for searches of non-resonant extensions of the…

High Energy Physics - Phenomenology · Physics 2016-07-28 Christoph Englert , Roman Kogler , Holger Schulz , Michael Spannowsky

We discuss the constraints on new physics from Higgs production through vector boson fusion in the context of an effective field theory that preserves Standard Model gauge symmetries. We find that the constraints on dimension-6 operators…

High Energy Physics - Phenomenology · Physics 2015-01-07 Ralph Edezhath

Deviations from the standard Higgs sector generated by some new (nonstandard) physics at an energy scale \Lambda could be described by an effective SU(3)_c x SU(2)_L x U(1) invariant non-renormalizable Lagrangian terms of dimension six. The…

High Energy Physics - Phenomenology · Physics 2014-02-12 E. Boos , V. Bunichev , M. Dubinin , Y. Kurihara

We investigate the possibilities of New Physics affecting the Standard Model (SM) Higgs sector. An effective Lagrangian with dimension-six operators is used to capture the effect of New Physics. We carry out a global Bayesian inference…

High Energy Physics - Phenomenology · Physics 2013-07-23 Beranger Dumont , Sylvain Fichet , Gero von Gersdorff

We probe the dimension-six operators contributing to Higgs production in association with a $Z$ boson at the future high-luminosity electron-positron colliders. Potential constraints on dimension-six operators in the Higgs sector are…

High Energy Physics - Phenomenology · Physics 2017-03-29 Hamzeh Khanpour , Mojtaba Mohammadi Najafabadi

New physics near the TeV scale can generate dimension-six operators that modify the production rate and branching ratios of the Higgs boson. Here, we show how Higgs boson pair production can yield complementary information on dimension-six…

High Energy Physics - Phenomenology · Physics 2010-10-27 Aaron Pierce , Jesse Thaler , Lian-Tao Wang

At the LHC, an effective theory of the Higgs sector allows us to analyze kinematic distributions in addition to inclusive rates, although there is no clear hierarchy of scales. We systematically analyze how well dimension-6 operators…

High Energy Physics - Phenomenology · Physics 2016-04-13 Johann Brehmer , Ayres Freitas , David Lopez-Val , Tilman Plehn

Recently a lot of progress has been made towards a full classification of new physics effects in Higgs observables by means of effective dimension six operators. Specifically, Higgs production in association with a high transverse momentum…

High Energy Physics - Phenomenology · Physics 2015-03-05 Diptimoy Ghosh , Martin Wiebusch

We obtain the partial-wave unitarity constraints on dimension-six operators stemming from the analyses of vector boson and Higgs scattering processes as well as the inelastic scattering of standard model fermions into electroweak gauge…

High Energy Physics - Phenomenology · Physics 2015-06-23 Tyler Corbett , O. J. P. Eboli , M. C. Gonzalez-Garcia

We study Higgs + jet production at hadron colliders in order to look for new physics residual effects possibly described by the $dim=6$ operators ${\O}_{GG}$ and ${\widetilde\O}_{GG}$ which induce anomalous $Hgg$ and $Hggg$ couplings. Two…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. J. Gounaris , J. Layssac , F. M. Renard

The effective Lagrangian formalism provides a way to study the new physics effects at the electroweak scale. We study the Higgs pair production via the vector-boson fusion (VBF) at the Large Hadron Collider within the framework of the…

High Energy Physics - Phenomenology · Physics 2018-04-12 Ling Liu-Sheng , Zhang Ren-You , Ma Wen-Gan , Li Xiao-Zhou , Guo Lei , Wang Shao-Ming

In this paper, we examine the potential of Higgs boson production associated with a photon at the LHC to probe the new physics effects in the framework of the standard model effective field theory. It is shown that the differential…

High Energy Physics - Phenomenology · Physics 2017-09-21 Hamzeh Khanpour , Sara Khatibi , Mojtaba Mohammadi Najafabadi

The inclusion of higher-dimensional gauge invariant operators induces new Lorentz structures in Higgs couplings with electroweak gauge boson pairs. This in principle affects the kinematics of Higgs production and decay, thereby modifying…

High Energy Physics - Phenomenology · Physics 2014-03-20 Shankha Banerjee , Satyanarayan Mukhopadhyay , Biswarup Mukhopadhyaya

We study the sensitivity to the shape of the Higgs potential of single, double, and triple Higgs production at future $e^+e^-$ colliders. Physics beyond the Standard Model is parameterised through the inclusion of higher-dimensional…

High Energy Physics - Phenomenology · Physics 2018-08-15 Fabio Maltoni , Davide Pagani , Xiaoran Zhao

We estimate the attainable limits on the coefficients of dimension--6 operators from the analysis of Higgs boson phenomenology, in the framework of a $SU_L(2) \times U_Y(1)$ gauge-invariant effective Lagrangian. Our results, based on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. C. Gonzalez-Garcia

We estimate the attainable limits on the coefficients of dimension--6 operators from the analysis of Higgs boson phenomenology, in the framework of a $SU_L(2) \times U_Y(1)$ gauge-invariant effective Lagrangian. Our results, based on the…

High Energy Physics - Phenomenology · Physics 2009-10-30 F. de Campos , M. C. Gonzalez-Garcia , S. F. Novaes

We consider extended scalar sectors of the Standard Model as ultraviolet-complete motivations for studying the effective Higgs self-interaction operators of the Standard Model effective field theory. We investigate all motivated heavy…

High Energy Physics - Phenomenology · Physics 2019-07-05 Tyler Corbett , Aniket Joglekar , Hao-Lin Li , Jiang-Hao Yu

Based on a vector triplet model we study a possible failure of dimension-6 operators in describing LHC Higgs kinematics. First, we illustrate that including dimension-6 contributions squared can significantly improve the agreement between…

High Energy Physics - Phenomenology · Physics 2016-10-05 Anke Biekötter , Johann Brehmer , Tilman Plehn

We present the sensitivity limits on the coefficients of a dimension-6 effective operators that parametrizes the possible effects of new physics beyond the Standard Model. Our results are based on the study of the processes $e^+ e^- \to W^+…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. de Campos , S. M. Lietti , S. F. Novaes , R. Rosenfeld

We derive the constraints that can be imposed on the dimension-6 effective theory extension of the Standard Model, using gluon fusion-initiated Higgs boson pair production at the LHC. We use a realistic analysis focussing on the $hh…

High Energy Physics - Phenomenology · Physics 2015-05-11 Florian Goertz , Andreas Papaefstathiou , Li Lin Yang , José Zurita
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