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Articles de revues sur le sujet « Standard Electroweak Model »

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Auteur : Grafiati
Publié le 7 septembre 2023

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1

BARKER, ANTHONY R. « STATUS OF STANDARD MODEL PARAMETERS ». International Journal of Modern Physics A 16, supp01a (octobre 2001) : 25–40. http://dx.doi.org/10.1142/s0217751x01006280.

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Recent experimental progress in determining the parameters of the electroweak sector of the Standard Model is summarized. The principal topics addressed include the precision determination of electroweak parameters using LEP and SLD data at the Z0 pole, measurements of the W mass by LEP-II, CDF, and D0, and determination of the elements of the CKM matrix using a variety of experimental methods.
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2

TANG, YONG. « VACUUM STABILITY IN THE STANDARD MODEL ». Modern Physics Letters A 28, no 04 (29 janvier 2013) : 1330002. http://dx.doi.org/10.1142/s0217732313300024.

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The long-awaited Higgs particle H around 125 GeV has been observed at the LHC. Interpreting it as the Standard Model Higgs boson and if there is no new physics between electroweak and Planck scale, we then do not have a stable vacuum. Here, we give a brief review of the electroweak vacuum stability and some related theoretical issues in the Standard Model. Possible ways to save the stability are also discussed.
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3

Marciano, W. J., et Z. Parsa. « Electroweak Tests of the Standard Model ». Annual Review of Nuclear and Particle Science 36, no 1 (décembre 1986) : 171–205. http://dx.doi.org/10.1146/annurev.ns.36.120186.001131.

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4

Erler, Jens. « Tests of the Electroweak Standard Model ». Journal of Physics : Conference Series 485 (24 mars 2014) : 012010. http://dx.doi.org/10.1088/1742-6596/485/1/012010.

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5

Haidt, D. « Status of the electroweak standard model ». Nuclear Physics B - Proceedings Supplements 13 (février 1990) : 3–14. http://dx.doi.org/10.1016/0920-5632(90)90032-p.

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6

Dydak, F. « Electroweak standard model : Tests at LEP ». Nuclear Physics A 546, no 1-2 (août 1992) : 85–105. http://dx.doi.org/10.1016/0375-9474(92)90503-c.

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7

KAZAKOV, D. I. « BEYOND THE STANDARD MODEL ». International Journal of Modern Physics A 22, no 30 (10 décembre 2007) : 5502–12. http://dx.doi.org/10.1142/s0217751x07038761.

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Review of recent developments in attempts to go beyond the Standard Model is given. We concentrate on three main unresolved problems: mechanism of electroweak symmetry breaking, expected new physics at the TeV scale (mainly SUSY) and the origin of the Dark matter.
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8

KITAZAWA, NORIAKI. « VACUUM ALIGNMENT IN THE TOP MODE STANDARD MODEL ». Modern Physics Letters A 06, no 40 (28 décembre 1991) : 3691–96. http://dx.doi.org/10.1142/s0217732391004279.

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We study the vacuum alignment in the top mode Standard Model in which the electroweak symmetry breaking is triggered by the top quark condensation. Including the QCD effects through the Cornwall-Jackiw-Tomboulis effective potential, we establish that the correct electroweak symmetry breaking SU (2)L × U (1)Y → U (1) em occurs in this model in 1/N leading and improved ladder approximation.
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9

Li, Shu. « Standard model measurements with ATLAS (+CMS) detector(s) ». International Journal of Modern Physics : Conference Series 39 (janvier 2015) : 1560102. http://dx.doi.org/10.1142/s2010194515601027.

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We present a broad range of Standard Model measurements performed in proton-proton collisions at the LHC on a variety of topics [Formula: see text]jets production and ratios, the electroweak multi-boson production, [Formula: see text] heavy flavor decay production, jet production, photon physics, the Standard Model soft QCD and diffractive physics. The latest public results from ATLAS experiment are obtained at the center-of-mass energy of both 7 TeV and 8 TeV, which covers total cross sections, fiducial cross sections, differential cross sections wherever available and comparison with Leading-Order/Next-to-Leading-Order/Next-to-Next-to-Leading-Order theory predictions. These measurements provide important tests for perturbative QCD, electroweak multi-boson interactions, Electroweak Symmetry Breaking over a broad kinematic range and constraints for PDFs. Model-independent new physics searches are also performed by probing anomalous gauge bosons couplings using effective Lagrangian or effective field theory formalism.
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10

Batebi, S., M. Haghighat, S. Tizchang et H. Akafzade. « Higgs couplings in noncommutative Standard Model ». International Journal of Modern Physics A 30, no 20 (19 juillet 2015) : 1550108. http://dx.doi.org/10.1142/s0217751x15501080.

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We consider the Higgs and Yukawa parts of the Noncommutative Standard Model (NCSM). We explore the NC-action to give all Feynman rules for couplings of the Higgs boson to electroweak gauge fields and fermions.
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11

Laine, M., et M. Meyer. « Standard Model thermodynamics across the electroweak crossover ». Journal of Cosmology and Astroparticle Physics 2015, no 07 (22 juillet 2015) : 035. http://dx.doi.org/10.1088/1475-7516/2015/07/035.

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12

Marciano, William J. « Precision electroweak tests of the standard model ». Journal of Physics : Conference Series 312, no 10 (23 septembre 2011) : 102002. http://dx.doi.org/10.1088/1742-6596/312/10/102002.

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13

Clements, Minot G., et S. H. Henry Tye. « Skyrmion phenomenology in the standard electroweak model ». Physical Review D 33, no 5 (1 mars 1986) : 1424–28. http://dx.doi.org/10.1103/physrevd.33.1424.

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14

Renton, Peter B. « Precision electroweak tests of the Standard Model ». Reports on Progress in Physics 65, no 9 (8 août 2002) : 1271–330. http://dx.doi.org/10.1088/0034-4885/65/9/202.

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15

BHATTACHARYYA, GAUTAM. « Electroweak symmetry breaking beyond the Standard Model ». Pramana 79, no 4 (22 septembre 2012) : 675–90. http://dx.doi.org/10.1007/s12043-012-0370-x.

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16

Altarelli, Guido, et Martin W. Grünewald. « Precision electroweak tests of the Standard Model ». Physics Reports 403-404 (décembre 2004) : 189–201. http://dx.doi.org/10.1016/j.physrep.2004.08.013.

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17

CYNOLTER, G., E. LENDVAI et G. PÓCSIK. « S AND T PARAMETERS IN THE FERMION CONDENSATE MODEL ». Modern Physics Letters A 24, no 29 (21 septembre 2009) : 2331–44. http://dx.doi.org/10.1142/s0217732309031594.

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We calculate the oblique electroweak corrections and confront them with the experiments in a composite Higgs version of the standard model. A vector-like weak doublet and a singlet fermion are added to the standard model without elementary Higgs. Due to quartic coupling, there is a mixing between the components of the new fields triggering electroweak symmetry breaking. The Peskin–Takeuchi S and T electroweak parameters are presented. The new sector of vector-like fermions is slightly constrained, T gives an upper bound on the mixing angle of the new fermions, which is already constrained by self-consistent gap-equations. S gives no constraints on the masses. This extension can give a positive contribution to T, allowing for a heavy Higgs boson in electroweak precision tests of the Standard Model.
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18

DIACONU, CRISTINEL. « ELECTROWEAK MEASUREMENTS ». International Journal of Modern Physics A 21, no 08n09 (10 avril 2006) : 1604–16. http://dx.doi.org/10.1142/s0217751x06032617.

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The measurements of electroweak sector of the Standard Model are presented, including most recent results from LEP, Tevatron and HERA colliders. The robustness of the Standard Model is illustrated with the precision measurements, the electroweak fits and the comparisons to the results obtained from low energy experiments. The status of the measurements of the W boson properties and rare production processes involving weak bosons at colliders is examined, together with the measurements of the electroweak parameters in ep collisions.
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19

MATUTE, ERNESTO A. « PRESYMMETRY BEYOND THE STANDARD MODEL ». Modern Physics Letters A 24, no 40 (28 décembre 2009) : 3295–305. http://dx.doi.org/10.1142/s0217732309031314.

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We go beyond the Standard Model guided by presymmetry, the discrete electroweak quark–lepton symmetry hidden by topological effects which explain quark fractional charges as in condensed matter physics. We show that partners of the particles of the Standard Model and the discrete symmetry associated with this partnership appear as manifestations of a residual presymmetry in the sense of Ekstein and its extension from matter to forces. This duplication of the spectrum of the Standard Model keeps spin and comes nondegenerated about the TeV scale.
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20

Sanz-Cillero, Juan José, Antonio Pich et Ignasi Rosell. « Electroweak effective theory and beyond Standard Model resonances ». Nuclear and Particle Physics Proceedings 312-317 (juillet 2021) : 196–200. http://dx.doi.org/10.1016/j.nuclphysbps.2021.05.051.

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21

Bernstein, R. H. « Standard model explanations for the NuTeV electroweak measurements ». Journal of Physics G : Nuclear and Particle Physics 29, no 8 (15 juillet 2003) : 1919–23. http://dx.doi.org/10.1088/0954-3899/29/8/373.

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22

Scadron, M. D., R. Delbourgo et G. Rupp. « Constituent quark masses and the electroweak standard model ». Journal of Physics G : Nuclear and Particle Physics 32, no 5 (19 avril 2006) : 735–45. http://dx.doi.org/10.1088/0954-3899/32/5/009.

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23

Chao, Wei. « Electroweak baryogenesis in the exceptional supersymmetric standard model ». Journal of Cosmology and Astroparticle Physics 2015, no 08 (28 août 2015) : 055. http://dx.doi.org/10.1088/1475-7516/2015/08/055.

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24

Denner, A., S. Dittmaier et T. Hahn. « Radiative corrections toZZ→ZZin the electroweak standard model ». Physical Review D 56, no 1 (1 juillet 1997) : 117–34. http://dx.doi.org/10.1103/physrevd.56.117.

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25

Ovanesyan, Grigory. « Electroweak radiative corrections and unitarity of Standard Model ». Physics Letters B 711, no 5 (mai 2012) : 376–83. http://dx.doi.org/10.1016/j.physletb.2012.04.027.

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26

Quirós, M., et M. Seco. « Electroweak baryogenesis in the minimal supersymmetric standard model ». Nuclear Physics B - Proceedings Supplements 81 (février 2000) : 63–70. http://dx.doi.org/10.1016/s0920-5632(99)00860-9.

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27

Tranberg, A., A. Hernandez, T. Konstandin et M. G. Schmidt. « Cold electroweak baryogenesis with Standard Model CP violation ». Physics Letters B 690, no 3 (juin 2010) : 207–12. http://dx.doi.org/10.1016/j.physletb.2010.05.030.

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28

MACHET, B. « COMMENTS ON THE STANDARD MODEL OF ELECTROWEAK INTERACTIONS ». International Journal of Modern Physics A 11, no 01 (10 janvier 1996) : 29–63. http://dx.doi.org/10.1142/s0217751x96000031.

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The Standard Model of electroweak interactions is shown to include a gauge theory for the observed scalar and pseudoscalar mesons. This is done by exploiting the consequences of embedding the SU(2)L×U(1) group into the chiral group of strong interactions and by explicitly considering as composite the Higgs boson and its three companions inside the standard scalar four-plet. No extra scale of interaction is needed. Quantizing by the Feynman path integral reveals how, in the “Nambu-Jona-Lasinio approximation,” the quarks and the Higgs boson become unobservable, and the theory anomaly-free. Nevertheless, the “anomalous” couplings of the pseudoscalar mesons to gauge fields spring again from the constraints associated with their compositeness itself. This work is the complement of Ref. 1, where the leptonic sector was shown to be compatible with a purely vectorial theory and, consequently, to be also anomaly-free. The bond between quarks and leptons loosens.
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29

VOLOVIK, G. E., et TANMAY VACHASPATI. « ASPECTS OF 3He AND THE STANDARD ELECTROWEAK MODEL ». International Journal of Modern Physics B 10, no 05 (28 février 1996) : 471–521. http://dx.doi.org/10.1142/s0217979296000209.

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We describe certain aspects of 3 He and compare them to related aspects of the standard electroweak model of particle physics. We note various similarities in the order parameter structure, defect structure, interactions with fermions and anomalies in the two systems. Many issues in the condensed matter literature that are often confusing to the particle physics reader and vice versa are clarified.
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30

Dvornikov, P. V. « Pseudo-Finsleroid standard model analysis of electroweak interactions ». Russian Physics Journal 49, no 4 (avril 2006) : 392–401. http://dx.doi.org/10.1007/s11182-006-0117-6.

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31

Dams, C., et R. Kleiss. « The electroweak standard model in the axial gauge ». European Physical Journal C 34, no 4 (mai 2004) : 419–27. http://dx.doi.org/10.1140/epjc/s2004-01734-4.

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32

Häuβling, R., N. A. Papadopoulos et F. Scheck. « Supersymmetry in the standard model of electroweak interactions ». Physics Letters B 303, no 3-4 (avril 1993) : 265–70. http://dx.doi.org/10.1016/0370-2693(93)91430-u.

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33

WOOD, D. R. « ELECTROWEAK PHYSICS ». International Journal of Modern Physics A 22, no 30 (10 décembre 2007) : 5523–32. http://dx.doi.org/10.1142/s0217751x07038785.

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34

TKACH, V. I. « TOWARDS GHOST-FREE GRAVITY AND STANDARD MODEL ». Modern Physics Letters A 27, no 22 (18 juillet 2012) : 1250131. http://dx.doi.org/10.1142/s0217732312501313.

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This paper presents a new higher derivative gravity which in spontaneous breaking electroweak symmetry state does not have ghost in gravity sector. We show that Newton constant of the gravity and dark energy density depend on the fundamental TeV scale and the coupling constant at the quadratic curvature term. We consider the supersymmetric extension of this model.
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35

SOLÀ, J. « SCALE GAUGE SYMMETRY AND THE STANDARD MODEL ». International Journal of Modern Physics A 05, no 22 (20 novembre 1990) : 4225–40. http://dx.doi.org/10.1142/s0217751x90001756.

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We speculate on a version of the "standard" model of the electroweak and strong interactions coupled to gravity and equipped with a spontaneously broken, anomalous, conformal gauge symmetry. The scalar sector is virtually absent in the minimal model but in the general case it shows up in the form of a nonlinear harmonic map Lagrangian. A Euclidean approach to the cosmological constant problem is also addressed in this framework.
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36

CHOUDHURY, DEBAJYOTI. « A COMPLETELY UNUNIFIED ELECTROWEAK MODEL ». Modern Physics Letters A 06, no 13 (30 avril 1991) : 1185–93. http://dx.doi.org/10.1142/s021773239100124x.

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We construct a “fully ununified” electroweak model in which the quarks and leptons transform under separate SU (2) L ⊗ U (1)Y groups. There are two charged and three massive neutral gauge bosons, the lightest of which are similar to the standard model particles. Anomaly cancellation does not lead to any tree level flavor changing neutral currents except in the neutrino sector. A variant that naturally leads to a hierarchy in the Kobayashi-Maskawa matrix elements is proposed.
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37

Besprosvany, J. « Standard-Model Coupling Constants from Compositeness ». Modern Physics Letters A 18, no 27 (7 septembre 2003) : 1877–85. http://dx.doi.org/10.1142/s0217732303011642.

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A coupling-constant definition is given based on the compositeness property of some particle states with respect to the elementary states of other particles. It is applied in the context of the vector-spin-1/2-particle interaction vertices of a field theory, and the standard model. The definition reproduces Weinberg's angle in a grand-unified theory. One obtains coupling values close to the experimental ones for appropriate configurations of the standard-model vector particles, at the unification scale within grand-unified models, and at the electroweak breaking scale.
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38

MATOS, TONATIUH, GUILLERMO ARREAGA et GABRIELLA PICCINELLI. « INFLATION FROM AN EFFECTIVE STANDARD MODEL OF PARTICLE PHYSICS FOR CURVED SPACETIME ». International Journal of Modern Physics D 08, no 03 (juin 1999) : 337–47. http://dx.doi.org/10.1142/s0218271899000250.

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Beginning from an effective theory in eight dimensions, in Ref. 1, Macias, Camacho and Matos proposed an effective model for the electroweak part of the Standard Model of particles in curved spacetime. Using this model, we investigate the cosmological consequences of the electroweak interaction in the early universe. We use the approximation that, near the Planck epoch, the Yang–Mills fields behave like a perfect fluid. Then we recover the field equations of inflationary cosmology, with the Higgs field directly related to the inflaton. We present some qualitative discussion about this and analyze the behavior of isospin space using some known exact solutions.
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39

Antusch, Stefan, et Oliver Fischer. « Testing sterile neutrino extensions of the Standard Model at the Circular Electron Positron Collider ». International Journal of Modern Physics A 30, no 23 (19 août 2015) : 1544004. http://dx.doi.org/10.1142/s0217751x15440042.

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Extending the Standard Model with sterile (“right-handed”) neutrinos is one of the best motivated ways to account for the observed neutrino masses. We discuss the expected sensitivity of the Circular Electron Positron Collider (CEPC) for testing such extensions. An interesting scenario is given by symmetry protected seesaw models, which theoretically allow for sterile neutrino masses around the electroweak scale with up to order one mixings with the active (SM) neutrinos. When the masses of the sterile neutrinos are well above the electroweak scale, they affect precision data via effective non-unitarity of the leptonic mixing matrix in a model independent way. The expected improvement of the electroweak precision observables from the CEPC may allow to test mixings between active and sterile neutrinos down to [Formula: see text] (using currently discussed CEPC performance parameters). For sterile neutrinos with masses around the electroweak scale, direct searches are possible. Such tests are given by the search for sterile neutrino decays at the [Formula: see text] pole, by deviations from the SM cross section for four leptons at and beyond the [Formula: see text] threshold, and by Higgs boson production and decays. The expected sensitivities at the CEPC could reach down to mixings as small as [Formula: see text].
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40

Brauner, Tomáš. « CP violation and electroweak baryogenesis in the Standard Model ». EPJ Web of Conferences 70 (2014) : 00078. http://dx.doi.org/10.1051/epjconf/20147000078.

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41

Marciano, W. J. « Quantitative Tests of the Standard Model of Electroweak Interactions ». Annual Review of Nuclear and Particle Science 41, no 1 (décembre 1991) : 469–509. http://dx.doi.org/10.1146/annurev.ns.41.120191.002345.

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42

Akiba, T., H. Kikuchi et T. Yanagida. « Relaxation of Baryon Number in the Standard Electroweak Model ». Progress of Theoretical Physics 83, no 4 (1 avril 1990) : 671–76. http://dx.doi.org/10.1143/ptp.83.671.

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43

Hagiwara, Kaoru. « Looking beyond the Standard Model through Precision Electroweak Physics ». Progress of Theoretical Physics Supplement 123 (1996) : 173–94. http://dx.doi.org/10.1143/ptps.123.173.

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44

Yamada, Youichi, Kaoru Hagiwara et Seiji Matsumoto. « Electroweak Precision Measurements and the Minimal Supersymmetric Standard Model ». Progress of Theoretical Physics Supplement 123 (1996) : 195–202. http://dx.doi.org/10.1143/ptps.123.195.

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45

Álvarez, Ezequiel, Carlos Schat, Leandro Da Rold et Alejandro Szynkman. « Electroweak precision constraints on the Lee-Wick standard model ». Journal of High Energy Physics 2008, no 04 (9 avril 2008) : 026. http://dx.doi.org/10.1088/1126-6708/2008/04/026.

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46

Froggatt, C. D., L. V. Laperashivli et H. B. Nielsen. « The fundamental-electroweak scale hierarchy in the standard model ». Physics of Atomic Nuclei 69, no 1 (janvier 2006) : 67–80. http://dx.doi.org/10.1134/s1063778806010108.

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47

Zhang, Z. « Electroweak and beyond the Standard Model results from HERA ». Nuclear Physics B - Proceedings Supplements 191 (juin 2009) : 271–80. http://dx.doi.org/10.1016/j.nuclphysbps.2009.03.134.

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48

Freitas, A. « Understanding electroweak physics in the Standard Model and beyond ». Nuclear and Particle Physics Proceedings 273-275 (avril 2016) : 21–28. http://dx.doi.org/10.1016/j.nuclphysbps.2015.09.004.

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49

Kniehl, Bernd A., Andrey F. Pikelner et Oleg L. Veretin. « Two-loop electroweak threshold corrections in the Standard Model ». Nuclear Physics B 896 (juillet 2015) : 19–51. http://dx.doi.org/10.1016/j.nuclphysb.2015.04.010.

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50

FINKELSTEIN, ROBERT J. « A KNOT MODEL SUGGESTED BY THE STANDARD ELECTROWEAK THEORY ». International Journal of Modern Physics A 20, no 28 (10 novembre 2005) : 6487–94. http://dx.doi.org/10.1142/s0217751x05028545.

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We attempt to go beyond the standard electroweak theory by replacing SU (2) with its q-deformation: SU q(2). This step introduces new degrees of freedom that we interpret as indicative of nonlocality and as a possible basis for a solitonic model of the elementary particles. The solitons are conjectured to be knotted flux tubes labeled by the irreducible representations of SU q(2), an algebra which is not only closely related to the standard theory but also plays an underlying role in the description of knots. Each of the four families of elementary fermions is conjectured to be represented by one of the four possible trefoils. The three individual fermions belonging to any family are then assumed to occupy the three lowest states in the excitation spectrum of the trefoil for that family. One finds a not unreasonable variation of q among the lepton and quark families. The model in its present form predicts a fourth generation of fermions as well as a neutrino mass spectrum. The model may be refined depending on whether or not the fourth generation is found.
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