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  • How to Measure Higgs Couplings - Heidelberg University

    2017-5-29 · Higgs Couplings Tilman Plehn Couplings Higgs EFT More EFTs D6 Higgs-gauge operators Triple gauge couplings –one more Higgs-gauge operator [#3 solved] O W = (D ˚) yW^ (D ˚) O B= (D ˚) y^B (D ˚) O WWW = Tr W ^ W ˆW^ ˆ –kinematics: pT;‘in VV production 1 10 102 103 104 100 200 300 400 500 600 700 800 900 1000 p T lead(GeV) Events/bin ...

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  • Study of Higgs effective couplings at colliders

    2017-10-24 · H.Hesari(IPM) Study of Higgs Effective couplings at electron-proton colliders . October 17. 3. THE MOST GENERAL EFFECTIVE HIGGS LAGRANGIAN IN THE GAUGE BASIS with the assumption of baryon and lepton number conservation and keeping only dimension-six operators, the most general . gauge invariant Lagrangian can be constructed from the SM fields. ...

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  • Measurements of the Higgs Boson Mass and Couplings

    2017-10-25 · TL-PHYS-PROC-2017-228 2017 Measurements of the Higgs Boson Mass and Couplings with ATLAS 13 TeV Data Eric Fengy CERN CH-1211 Geneva 23, Switzerland E-mail: [email protected] Combined measurements of the Higgs boson mass, as well as of its production times decay rates, are performed using the H !gg and H !ZZ !4‘ decay channels. The ...

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  • Exploring the top-Higgs FCNC couplings at polarized

    2017-1-11 · We study the nature of flavor changing neutral couplings of the top quark with the Higgs boson and the up/charm quark in the toverline{t} production at linear colliders. There are previous bounds on such tqH couplings at both, linear and hadronic colliders, with the assumption that the top couples equally to the left and the right handed fermions.

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  • Constraining the charm and light quark Yukawa couplings ...

    2017-11-16 · New result for Higgs Couplings 2017! Kinematic distributions in inclusive production Shape of pH T or y H distributions sensitive to modi ed Yukawa couplings (arXiv:1606.09621) ATLAS Results: Di erential cross section measurements in H ! (ATLAS-CONF-2017-045) and H !4‘channels (arXiv:1708.02810)

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  • Phys. Rev. D 96, 035013 (2017) - Modification of Higgs ...

    2017-8-17 · Modification of Higgs couplings in minimal composite models Da Liu, Ian Low, and Carlos E. M. Wagner Phys. Rev. D 96, 035013 – Published 17 August 2017

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  • Virtual signatures of dark sectors in Higgs couplings ...

    2017-11-6 · ATLAS collaboration, Constraints on new phenomena via Higgs boson couplings and invisible decays with the ATLAS detector, JHEP 11 (2015) 206 [arXiv:1509.00672] . [23] CMS collaboration, Searches for invisible decays of the Higgs boson in pp collisions at ( sqrt{s}=7 ), 8 and 13 TeV, JHEP 02 (2017) 135 [arXiv:1610.09218] . [24]

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  • Machine learning for the Higgs boson physics at the LHC

    2018-12-6 · Higgs Couplings 2018 27 Nov 2018, Tokyo, Japan Machine learning (ML) gives a computer system the ability ... ATL-PHYS-PUB-2017-022. BDT for hadronic tau at CMS for ID (classification), at ... RNN for all tracks in a jet; CNN for jet images). Modern (Python) tools need to be adapted to our (C++) frameworks. Stay tuned for end of Run-2 papers and ...

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  • Constraints on anomalous Higgs boson couplings

    A search is performed for anomalous interactions of the recently discovered Higgs boson using matrix element techniques with the information from its decay to four leptons and from associated Higgs boson production with two quark jets in either vector boson fusion or associated production with a vector boson. The data were recorded by the CMS experiment at the LHC at a center-of-mass energy of ...

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  • Searches for the Anomalous FCNC Top-Higgs Couplings

    2019-7-30 · ResearchArticle Searches for the Anomalous FCNC Top-Higgs Couplings with Polarized Electron Beam at the LHeC XiaoJuanWang,HaoSun,andXuanLuo InstituteofTheoreticalPhysics,SchoolofPhysics&OptoelectronicTechnology,DalianUniversityofTechnology,

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  • ATLAS takes a closer look at the Higgs boson’s

    2017-7-6 · EPS 2017 presentation by Ruchi Gupta: Measurement of the Higgs boson couplings and properties in the diphoton, ZZ and WW decay channels using the ATLAS detector and Tamara Vazquez Schroeder: Determination of the Higgs boson properties with the ATLAS detector; See also the full lists of ATLAS Conference Notes and ATLAS Physics Papers.

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  • How to Measure Higgs Couplings - Heidelberg University

    2017-5-29 · Higgs Couplings Tilman Plehn Couplings Higgs EFT More EFTs D6 Higgs-gauge operators Triple gauge couplings –one more Higgs-gauge operator [#3 solved] O W = (D ˚) yW^ (D ˚) O B= (D ˚) y^B (D ˚) O WWW = Tr W ^ W ˆW^ ˆ –kinematics: pT;‘in VV production 1 10 102 103 104 100 200 300 400 500 600 700 800 900 1000 p T lead(GeV) Events/bin ...

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  • Controlled Flavour Changing Neutral Couplings in Two

    2017-9-18 · It is remarkable - and trivial- that the couplings that appear with the new neutral Higgs R0 and A- in general Flavour Changing- Nu, Nd also appear in the charged Higgs H couplings. F.J.B. (IFIC-Valencia) Generalized BGL-2HDM at CORFU September 2017 7 41

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  • [1405.0990] Higgs couplings and new signals from

    2014-5-5 · Abstract: Testing the properties of the Higgs particle discovered at the LHC and searching for new physics signals, are some of the most important tasks of Particle Physics today. Current measurements of the Higgs couplings to fermions and gauge bosons, seem consistent with the Standard Model, and when taken as a function of the particle mass, should lay on a single line.

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  • Searches for the Anomalous FCNC Top-Higgs Couplings

    2019-7-30 · ResearchArticle Searches for the Anomalous FCNC Top-Higgs Couplings with Polarized Electron Beam at the LHeC XiaoJuanWang,HaoSun,andXuanLuo InstituteofTheoreticalPhysics,SchoolofPhysics&OptoelectronicTechnology,DalianUniversityofTechnology,

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  • Constraints on anomalous Higgs boson couplings

    A search is performed for anomalous interactions of the recently discovered Higgs boson using matrix element techniques with the information from its decay to four leptons and from associated Higgs boson production with two quark jets in either vector boson fusion or associated production with a vector boson. The data were recorded by the CMS experiment at the LHC at a center-of-mass energy of ...

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  • Implications of C P -violating top-Higgs couplings at

    Abstract. We utilize the LHC run-1 and -2 Higgs data to constrain the C P -violating top-Higgs couplings. In order to satisfy the current full Higgs data sets at 2 σ level, the C P -odd component C t p and the C P -even component C t s have to be within the ranges |C t p |<0.37 and 0.85 Get Price

  • Measuring Higgs couplings at a linear collider -

    2013-3-6 · The European Physical Society (EPS) is a not for profit association whose members include 41 National Physical Societies in Europe, individuals from all fields of physics, and Eur

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  • hZZ hWW arXiv:1707.04176v1 [hep-ph] 13 Jul 2017

    arXiv:1707.04176v1 [hep-ph] 13 Jul 2017 NCTS-PH/1721 Radiative correctionstoHiggscouplings withweak gauge bosons in custodial multi-Higgs models

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  • [1708.08912] Improved Formalism for Precision Higgs ...

    2017-8-29 · Future e+e- colliders give the promise of model-independent determinations of the couplings of the Higgs boson. In this paper, we present an improved formalism for extracting Higgs boson couplings from e+e- data, based on the Effective Field Theory description of corrections to the Standard Model. We apply this formalism to give projections of Higgs coupling accuracies for stages of the ...

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  • Early Universe Higgs dynamics in the presence of the

    2017-6-27 · In this work, we allow for these couplings to be present simultaneously and study their interplay. We find that different combinations of the Higgs-inflaton and non-minimal Higgs-gravity couplings induce effective Higgs mass during and after inflation. This crucially affects the Higgs stability considerations during preheating.

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  • SM, Higgs, Top

    2018-11-21 · In this work, we will focus on the resonant production of stops: the couplings 00 3jk are less constrained by flavor-changing neutral currents and flavor physics [12], while at the same time –5– Average Images Geant4 1705.02355M. Paganini et al., 1705.02355 CaloGAN 1601.03737 SUSY

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  • hZZ hWW arXiv:1707.04176v1 [hep-ph] 13 Jul 2017

    arXiv:1707.04176v1 [hep-ph] 13 Jul 2017 NCTS-PH/1721 Radiative correctionstoHiggscouplings withweak gauge bosons in custodial multi-Higgs models

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  • Measurements of Higgs boson production and

    2013-8-13 · The U.S. Department of Energy's Office of Scientific and Technical Information

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  • Measurements of Higgs boson production and

    2018-3-16 · Jets for quantum 3D images of the nucleon 2021-06-18 Exploring Higgs boson couplings with ATLAS experiment 2021-06-11 Light-front holography with chiral symmetry breaking 2021-06-04 Charmed Baryon Decays From Lattice QCD 2021-05-28 国际空间站上

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  • Study of (W/Z)H production and Higgs boson

    The final ATLAS Run 1 measurements of Higgs boson production and couplings in the decay channel H Z Z * ℓ + ℓ-ℓ ′ + ℓ ′-, where ℓ, ℓ ′ = e or μ, are presented. These measurements were performed using p p collision data corresponding to integrated luminosities of 4.5 and 20.3 fb - 1 at center-of-mass energies of 7 and ...

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  • Constraints on anomalous Higgs boson couplings using

    Abstract: A search for Higgs boson production in association with a W or Z boson, in the H W W∗ decay channel, is performed with a data sample collected with the ATLAS detector at the LHC in proton-proton collisions at centre-of-mass energies √s=7 sqrt{s}=7 TeV and 8 TeV, corresponding to integrated luminosities of 4.5 fb−1 and 20.3 fb−1, respectively.

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  • Probing -violating Higgs and gauge-boson couplings in

    2019-7-26 · CERN-EP-2017-143 2017/11/09 CMS-HIG-17-011 Constraints on anomalous Higgs boson couplings using production and decay information in the four-lepton final state The CMS Collaboration Abstract A search is performed for anomalous interactions of the recently discovered Higgs boson using matrix element techniques with the information from its ...

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  • PUBnotes < AtlasPublic < TWiki

    2019-7-2 · Probing CP­violating Higgs and gauge­boson couplings in the ... Ferreira, Felipe, Fuks, Benjamin, Sanz, Verónica and Sengupta, Dipan (2017) Probing CP-violating Higgs and gauge-boson couplings in the Standard Model effective field theory. The European Physical Journal C, 77 (675). pp. 1-18. ISSN 1434-6044

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  • HIGGS COUPLINGS MEASUREMENTS AND THE SCALE

    2021-2-18 · GENERAL HIGGS COUPLINGS 10 Any nonzero δ or c coupling is a sign of new physics, which leads to unitarity violation at high energies (higher dim. operators), placing an upper bound on this new physics tree-level unitarity, just as for the SM without the Higgs. Tree-level unitarity violation is a

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  • Probing the Higgs coupling to muons in CMS and

    2021-6-17 · Probing the Higgs boson coupling to the muon is one of the last experimentally accessible frontiers in the direct measurement of Higgs boson couplings at the LHC. This Collider Cross Talk will highlight the latest results on the Higgs boson decay to muons with LHC Run-2 data by the ATLAS and CMS experiments, including the first evidence for ...

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  • Current and future constraints on Higgs couplings in

    2018-7-9 · The U.S. Department of Energy's Office of Scientific and Technical Information

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  • Off-shell Higgs couplings in H⁎ → ZZ → ℓℓνν -

    2021-6-10 · In this section, we derive a projection for the Higgs boson width measurement at the s = 14 TeV high-luminosity LHC, exploring the Z Z 2 ℓ 2 ν final state. We consider the signal channel as in Eq. . The signal is characterized by two same-flavor opposite sign leptons, ℓ = e or μ, which reconstruct a Z boson and recoil against a large missing transverse momentum from Z ν ν ¯.

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  • Study of (W/Z)H production and Higgs boson

    Abstract: A search for Higgs boson production in association with a W or Z boson, in the H W W∗ decay channel, is performed with a data sample collected with the ATLAS detector at the LHC in proton-proton collisions at centre-of-mass energies √s=7 sqrt{s}=7 TeV and 8 TeV, corresponding to integrated luminosities of 4.5 fb−1 and 20.3 fb−1, respectively.

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  • Constraints on new phenomena via Higgs boson

    Author(s): The ATLAS collaboration; Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Aben, R; Abolins, M; AbouZeid, OS; Abramowicz, H; Abreu, H; Abreu, R; Abulaiti, Y ...

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  • Higgs physics at the CLIC electron-positron linear ...

    The Compact Linear Collider (CLIC) is an option for a future [Formula: see text] collider operating at centre-of-mass energies up to [Formula: see text], providing sensitivity to a wide range of new physics phenomena and precision physics measurements at the energy frontier. This paper is the first …

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  • ATLAS highlights from EPS-HEP 2017 | ATLAS

    2017-7-12 · ATLAS 13 TeV event displays and members of the ATLAS collaboration at the EPS-HEP 2017 conference. (Images: S.Biondi/ATLAS Collaboration) The ATLAS Collaboration has presented important new results at the European Physical Society conference on High Energy Physics (EPS-HEP) in Venice (Italy), including the latest analyses of 13 TeV Run 2 data from the Large Hadron Collider …

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  • NMHDECAY: A Fortran Code for the Higgs Masses,

    2005-3-11 · Images. An illustration of a heart shape Donate. An illustration of text ellipses. More An icon used to represent a menu that can be toggled by interacting with this icon. ... The Fortran code NMHDECAY computes the masses, couplings and decay widths of all Higgs bosons of the NMSSM in terms of its parameters at the electroweak (SUSY breaking ...

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  • Study of (W/Z)H production and Higgs boson

    Abstract: A search for Higgs boson production in association with a W or Z boson, in the H W W∗ decay channel, is performed with a data sample collected with the ATLAS detector at the LHC in proton-proton collisions at centre-of-mass energies √s=7 sqrt{s}=7 TeV and 8 TeV, corresponding to integrated luminosities of 4.5 fb−1 and 20.3 fb−1, respectively.

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  • Constraints on new phenomena via Higgs boson

    Author(s): The ATLAS collaboration; Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Aben, R; Abolins, M; AbouZeid, OS; Abramowicz, H; Abreu, H; Abreu, R; Abulaiti, Y ...

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  • Public plots for Higgs -> mumu - CERN Document

    Total images: 3. CMS-PHO-GEN-2020-002-2 - Small, Medium, Large, Original A summary of the CMS measurements of the Higgs boson couplings to the other fundamental particles, with the predictions by the standard model indicated by the blue line. In the lower panel, the ratio between the measured coupling and the standard model prediction is shown. ...

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  • Perspectives in Particle Physics after the Discovery of ...

    Although possible, this scenario would, however, be severely constrained by the need for the couplings of the H boson to be finely tuned to very well predicted values. SUSY and a Light Higgs Boson While in the SM the H is unique, and its mass is essentially a free parameter, the most popular models of SUSY contain an entire family of Higgs bosons.

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  • The future of Higgs physics | ILC Newsline

    2014-10-30 · To do this, they plan to study Higgs couplings with known subatomic particles. The higher a particle’s mass, the proportionally stronger its coupling ought to be with the Higgs boson. The ILC will be sensitive enough to detect and accurately measure Higgs couplings …

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  • Exploring sizable triple Higgs couplings in the 2HDM

    Within the framework of Two Higgs Doublet Models (2HDM) types I and II we investigate the allowed ranges for all triple Higgs couplings involving at least one light, SM-like Higgs boson. We take into account theoretical constraints (unitarity, stability), experimental constraints from direct Higgs-boson searches, measurements of the SM-like ...

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  • Higgs boson production cross-section measurements

    Higgs boson properties are studied in the four-lepton decay channel (where lepton = e e e, μ mu μ) using 139 fb − 1 ^{-1} − 1 of proton-proton collision data recorded at s sqrt{s} s = 13 TeV by the ATLAS experiment at the Large Hadron Collider. The inclusive cross-section times branching ratio for H Z Z ∗ H o ZZ^* H Z Z ∗ decay is measured to be 1.34 ± 0.12 1.34 pm 0.12 ...

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  • ILC250 Higgs factory: ready for launch! | ILC Newsline

    2009-6-17 · QCD lecture 2 (p. 3) PDF introduction Factorization & parton distributions Cross section for some hard process in hadron-hadron collisions x 2p 2 p1 p2 x 1 p 1 σ Z H σ = Z dx 1f q/p(x 1,µ 2) Z dx 2f ¯(x 2,µ 2)ˆσ(x 1p 1,x 2p 2,µ2), ˆs = x 1x 2s Total X-section is factorized into a ‘hard part’ ˆσ(x 1p 1,x 2p 2,µ2) and ‘normalization’ from parton distribution functions (PDF).

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  • Search for BSM Higgs Bosons with ATLAS

    2016-9-16 · • Suppressed Higgs couplings to fermions in 2HDM and Higgs triplet models Here: simple benchmark model (LEP) • no fermion-Higgs couplings • SM boson-Higgs couplings • Production: Vector-boson fusion and associated production with W/Z • Decays to γγ, WW, ZZ, Zγ Here: focus on H γγ ⇒ larger σ×BR than SM for light Higgs ...

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  • Testing Effective Yukawa Couplings in Higgs Searches

    We explore the possibility that, while the Higgs mechanism provides masses to the weak-gauge bosons at the electroweak scale as in the standard model, fermion...

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  • Public plots for Higgs -> mumu - CERN Document

    Total images: 3. CMS-PHO-GEN-2020-002-2 - Small, Medium, Large, Original A summary of the CMS measurements of the Higgs boson couplings to the other fundamental particles, with the predictions by the standard model indicated by the blue line. In the lower panel, the ratio between the measured coupling and the standard model prediction is shown. ...

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  • Are you smarter than an ATLAS algorithm? –

    Testing anomalous couplings and Higgs self-couplings via double and triple Higgs production at colliders M. Gonzalez-Lopez 1 ,2 a , M. J. Herrero 1 ,2 and P. Martinez-Suarez 1 ,2 ,3 1 Departamento de Física Teórica, Universidad Autónoma de Madrid, 28049, Cantoblanco, Madrid, Spain

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  • Testing anomalous couplings and Higgs self

    Although possible, this scenario would, however, be severely constrained by the need for the couplings of the H boson to be finely tuned to very well predicted values. SUSY and a Light Higgs Boson While in the SM the H is unique, and its mass is essentially a free parameter, the most popular models of SUSY contain an entire family of Higgs bosons.

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  • Perspectives in Particle Physics after the Discovery of ...

    We review and discuss recent work exploring the implications of the Higgs field for early universe cosmology, and vice versa. Depending on the model under consideration, the Higgs may be one of a few scalar fields determining the evolution and fate of the Universe, or the Higgs field may be connected to a rich sector of scalar moduli with complicated dynamics.

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  • Physics | Free Full-Text | The Higgs Field and Early ...

    2021-5-4 · June 9, 2017: Michael Fedderke, 'Studies in Higgs physics, particle dark matter and early universe' June 12, 2017: Hsin-Yu Chen, 'Multi-messenger Astronomy with Advanced LIGO-Virgo' June 19, 2017: Chen He Heinrich, 'Lensing Bias to CMB Polarization Measurements of Compensated Isocurvature Perturbations' July 21, 2017

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  • LHC experiments delve deeper into precision | CERN

    2020-12-5 · Extended scalar sectors appear in various extensions of the Standard Model of particle physics, such as supersymmetric models. They are also generic extensions of the Standard Model and can address a number of its shortcomings. Direct searches for additional Higgs bosons and measurements of the 125-GeV Higgs boson, both of which provide insights into the different possible …

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