Bibliographies thématiques / Electroweak Singlet

Littérature scientifique sur le sujet « Electroweak Singlet »

Auteur : Grafiati
Publié le 10 mars 2023

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Articles de revues sur le sujet "Electroweak Singlet"

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Bander, Myron. « Electroweak constraints on heavy singlet quarks ». Physics Letters B 277, no 4 (mars 1992) : 509–11. http://dx.doi.org/10.1016/0370-2693(92)91819-u.

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Espinosa, J. R., et M. Quirós. « The electroweak phase transition with a singlet ». Physics Letters B 305, no 1-2 (mai 1993) : 98–105. http://dx.doi.org/10.1016/0370-2693(93)91111-y.

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Cline, James M. « Is electroweak baryogenesis dead ? » Philosophical Transactions of the Royal Society A : Mathematical, Physical and Engineering Sciences 376, no 2114 (22 janvier 2018) : 20170116. http://dx.doi.org/10.1098/rsta.2017.0116.

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Electroweak baryogenesis is severely challenged in its traditional settings: the minimal supersymmetric standard model, and in more general two Higgs doublet models. Fine tuning of parameters is required, or large couplings leading to a Landau pole at scales just above the new physics introduced. The situation is somewhat better in models with a singlet scalar coupling to the Higgs so as to give a strongly first-order phase transition due to a tree-level barrier, but even in this case no UV complete models had been demonstrated to give successful baryogenesis. Here, we point out some directions that overcome this limitation, by introducing a new source of particle–antiparticle (CP) violation in the couplings of the singlet field. A model of electroweak baryogenesis requiring no fine tuning and consistent to scales far above 1 TeV is demonstrated, in which dark matter plays the leading role in creating a CP asymmetry that is the source of the baryon asymmetry. This article is part of the Theo Murphy meeting issue ‘Higgs cosmology’.
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TSAI, S. Y. « SIMPSON’S 17 keV NEUTRINO IN MINIMALLY EXTENDED SU(2)L×U(1) ELECTROWEAK MODELS ». International Journal of Modern Physics A 07, no 22 (10 septembre 1992) : 5625–35. http://dx.doi.org/10.1142/s0217751x92002556.

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It is shown that the standard SU(2) L× U(1) electroweak gauge model extended so as to incorporate a single right-handed neutrino singlet and a second Higgs doublet, supplemented with the singlet majoron hypothesis, can accommodate Simpson’s 17 keV neutrino in a rather unique way. A number of interesting phenomenological consequences follow from such a scheme, which are discussed.
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Matsui, Toshinori. « Gravitational waves from the first order electroweak phase transition in the Z3 symmetric singlet scalar model ». EPJ Web of Conferences 168 (2018) : 05001. http://dx.doi.org/10.1051/epjconf/201816805001.

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Among various scenarios of baryon asymmetry of the Universe, electroweak baryogenesis is directly connected with physics of the Higgs sector. We discuss spectra of gravitational waves which are originated by the strongly first order phase transition at the electroweak symmetry breaking, which is required for a successful scenario of electroweak baryogenesis. In the Z3 symmetric singlet scalar model, the significant gravitational waves are caused by the multi-step phase transition. We show that the model can be tested by measuring the characteristic spectra of the gravitational waves at future interferometers such as LISA and DECIGO.
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RAJPOOT, SUBHASH. « ELECTROWEAK INTERACTIONS WITH CHIRAL HYPERCHARGES ». Modern Physics Letters A 05, no 27 (30 octobre 1990) : 2241–45. http://dx.doi.org/10.1142/s0217732390002559.

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We consider an extension of the electroweak gauge interactions from SU (2) L × U (1)Y to SU (2) L × U (1) L × U (1) R . This extension is motivated by the observed structure of the quarks and leptons, i.e., they form left-handed doublets and right-handed singlets eigenstates of electroweak interactions. In this new extension, the U (1) R serves only the right-handed singlet fermions. Consistent with the measurements of the mass of the standard massive neutral boson Z0 at the SLAC and CERN colliders and the neutral current couplings involving neutrinos and electrons, the additional massive neutral gauge boson can be as light as a few hundred GeV. The model employs the generalized see-saw mechanism to give masses to all the fermions of the theory.
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Profumo, Stefano, Michael J. Ramsey-Musolf et Gabe Shaughnessy. « Singlet Higgs phenomenology and the electroweak phase transition ». Journal of High Energy Physics 2007, no 08 (3 août 2007) : 010. http://dx.doi.org/10.1088/1126-6708/2007/08/010.

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Kobakhidze, Archil, Lei Wu et Jason Yue. « Electroweak Baryogenesis with Anomalous Higgs Couplings ». International Journal of Modern Physics : Conference Series 43 (janvier 2016) : 1660200. http://dx.doi.org/10.1142/s2010194516602003.

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In non-linear realisation of the electroweak gauge symmetry, the LHC Higgs boson can be assumed to be a singlet under [Formula: see text]. In such scenario, the Standard Model particle content can be kept but new sets of couplings are allowed. We identify a range of anomalous Higgs cubic and the [Formula: see text]-violating Higgs-top quark couplings that leads to first order phase transition and successful baryogenesis at the electroweak scale.
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KRASNIKOV, N. V. « INFLUENCE OF SU(2) ⊗ U(1) SINGLET SCALARS ON HIGGS BOSON SIGNAL AT LHC ». Modern Physics Letters A 13, no 11 (10 avril 1998) : 893–98. http://dx.doi.org/10.1142/s0217732398000978.

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We investigate a model of SU(2) ⊗ U(1) singlet scalars coupled to Standard Model. We point out that for the case of the maximal mixing between singlet scalars and the standard Higgs boson, the Higgs boson production cross-section is smaller than the standard Higgs boson production by a factor of 1/(N+1), where N is the number of singlet scalars. For the case of large mixing, Higgs boson could be unobservable at LHC. However, there is also the possibility for the observation of scalar singlets at LHC. As a semi-realistic example, we discuss supersymmetric SU(2) ⊗ U(1) electroweak model with an additional singlet chiral superfield.
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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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Thèses sur le sujet "Electroweak Singlet"

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Higuchi, Katsuichi. « Electroweak Interaction with Singlet Quarks ». 京都大学 (Kyoto University), 2012. http://hdl.handle.net/2433/152527.

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Yamashita, Hiroki 1981. « Electroweak phase transition and singlet Majoron model ». Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101691.

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First, we review the basics of baryogenesis and models for baryogenesis in the early literature. Then, we discuss the main theme in this thesis, electroweak baryogenesis, which utilizes the electroweak phase transition. We present how the phase transition can be used to achieve baryogenesis. Next, we develop our model, which is the Standard Model with a singlet field coupled to the Higgs doublet negatively and to the right-handed neutrinos. It is a simple extension of the singlet Majoron model. We focus on numerical analysis of the model. Parameter space satisfying all the conditions are found and relevant quantities, such as the critical temperature, the Higgs mass, and the mixing angle are found as well. It turns out that LEP bound on the Higgs mass and the mixing angle is a strong constraint, and only a small fraction of parameter space is acceptable for attaining a strong enough phase transition for baryogenesis.
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Laporte, Guillaume. « Observability of gravitational wave production and electroweak baryogenesis in the singlet majoron model ». Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97102.

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We study the electroweak phase transition in the Singlet Majoron model, as well as thepossibility of detecting the gravitational wave spectrum resulting from the first orderphase transition. We use numerical analysis to determine the strength of the rstorder phase transition. We also use numerical analysis to determine if the Big BangObserver (BBO) would be able to detect the gravitational waves produced during thefirst order phase transition. We conclude that the model can lead to a strong first orderphase transition in certain regions of its parameter space, as required for baryogenesis.Moreover, we are able to fine tune the coupling constants of the model such that BBOwould be able to detect the gravitational wave spectrum of the associated electroweakphase transition.
Nous étudions la transition électrofaible dans le modele du Singulet Majoron, ainsi quenous traitons de la possibilité de détecter le spectre d'ondes gravitationelles résultantde cette transition de phase. Nous utilisons une analyse numérique pour déterminerla force de la transition électrofaible. Nous utilisons aussi une analyse numérique pourdéterminer si l'Observateur du Big Bang (OBB) pourrait détecter les ondes gravitationellesproduites durant la transition de phase. Nous concluons que le modèle peutgénérer une forte transition de phase de premier ordre dans certains endroits de sonespace de paramètres, produisant une production de baryons. De plus, pour certainsparamètres précis, nous déterminons que l'OBB serait capable de détecter le spectred'ondes gravitationelles associé à la transition de phase.
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Del, Donno Antonio. « Testing electroweak baryogenesis at LHC in a minimal extension of the Standard Model ». Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/17052/.

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Il modello standard è la teoria che descrive con spettacolare accuratezza le interazioni fra i costituenti fondamentali della materia come oggi ci sono noti. Nonostante il successo nel confronto fra teoria ed esperimenti, diverse questioni rimangono insolute. Indicazioni esistono riguardo l'esistenza di fisica oltre il modello standard, anche se ancora ignoriamo la sua natura. L'obiettivo principale di questo lavoro è di caratterizzare una delle più semplici estensioni del modello standard che prevede un singoletto scalare interagente con il solo bosone di Higgs. Questo nuovo stato potrebbe avere un'influenza sulla fenomenologia del bosone di Higgs ai collider e dare luogo al meccanismo della bariogenesi elettrodebole. Una volta classificate le differenti possibilità, concentriamo la nostra attenzione su un modello semplificato caratterizzato da una simmetria $\mathbb{Z}_{2}$, nel quale le modifiche al self-coupling del bosone di Higgs possono apparire solo ad un loop. Il calcolo dei contributi corrispondenti permette di identificare la regione dello spazio dei parametri dove è possibile ottenere una transizione di fase elettrodebole del primo ordine, e di verificare se le deviazioni dalle previsioni del modello standard possano essere rilevabili ad LHC. Consideriamo sia il modello completo che la corrispondente approssimazione effettiva, studiandone il regime di applicabilità. Infine, otteniamo le previsioni per la produzione di una coppia di bosoni di Higgs. I nostri risultati preliminari mostrano come nelle regioni dello spazio dei parametri nelle quali è possibile avere la transizione del primo ordine un approccio effettivo sia sufficiente a riprodurre il modello completo. Inoltre, le differenze di shape e sezione d'urto fra la estensione con un singoletto ed il modello standard sono visibili per valori della massa del singoletto potenzialmente rilevabili a LHC.
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Ahriche, Amine. « The electroweak phase transition in models with gauge singlets ». [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=983917485.

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Dong, Peter Joseph. « Measurement of electroweak single top quark production in proton-antiproton collisions at 1.96 TeV ». Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1679373931&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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Walter, Thorsten. « Search for electroweak single top quark production with CDF in proton antiproton collisions at s = 1.96 T E V ». [S.l. : s.n.], 2005. http://swbplus.bsz-bw.de/bsz118344536abs.htm.

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Suster, Carl Joseph Edmund. « Cross-section measurements of the electroweak production of a single top quark in association with a W boson at √s = 13 TeV with the ATLAS detector ». Thesis, The University of Sydney, 2019. https://hdl.handle.net/2123/21615.

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The top quark is the most massive fundamental particle within the Standard Model of particle physics, discovered at Fermilab in 1995. In pp collisions at the Large Hadron Collider at CERN, large quantities of top quarks are produced, offering the first opportunity to explore its properties in rarer production modes in detail. This thesis presents measurements of the cross-section of the electroweak production of a single top quark in association with a W boson, using data collected at 13 TeV centre-of-mass energy with the ATLAS detector. The total tW production cross-section is measured in events with two oppositely-charged electrons or muons. Differential tW cross-sections are measured with respect to several observables, providing the first detailed validation of the modelling of the process. The measurements are consistent with theoretical predictions, and contribute to future improvements in the modelling of tW production.
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Richter, Svenja. « Search for Electroweak Single Top-Quark Production with the CDF II Experiment Suche nach Elektroschwacher Produktion einzelner Topquarks mit dem CDF II Experiment / ». [S.l. : s.n.], 2007. http://digbib.ubka.uni-karlsruhe.de/volltexte/1000007304.

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Shaughnessy, Gabriel Grant. « Phenomenology of singlet field extended electroweak gause models ». 2007. http://www.library.wisc.edu/databases/connect/dissertations.html.

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Livres sur le sujet "Electroweak Singlet"

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Stelzer, Bernd. Search for electroweak single top quark production in 1.96 TeV proton-antiproton collisions. 2005.

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Chapitres de livres sur le sujet "Electroweak Singlet"

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Kaur, Harjot. « Search for Compressed Mass Spectrum SUSY via Electroweak VBF in Single Lepton Final States Using LHC Run II Data Collected with CMS Detector at $${\sqrt{\mathrm s}} = 13$$ TeV ». Dans Springer Proceedings in Physics, 121–25. Singapore : Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2354-8_22.

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Actes de conférences sur le sujet "Electroweak Singlet"

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FUYUTO, Kaori. « Electroweak phase transition in the singlet-extended SM ». Dans Flavor Physics & CP Violation 2015. Trieste, Italy : Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.248.0086.

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Szczerbiak, P., Marcin Badziak et Marek Olechowski. « Blind spots for neutralinos in NMSSM with light singlet scalar ». Dans 18th International Conference From the Planck Scale to the Electroweak Scale. Trieste, Italy : Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.258.0130.

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Badziak, M., Ben Allanach, Cyril Hugonie et Robert Ziegler. « Gauge Mediation in the NMSSM with a Light Singlet : Sparticles within the Reach of LHC Run II ». Dans 18th International Conference From the Planck Scale to the Electroweak Scale. Trieste, Italy : Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.258.0012.

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HUBER, S. J., et M. G. SCHMIDT. « BARYOGENESIS AT THE ELECTROWEAK PHASE TRANSITION FOR A SUSY MODEL WITH A GAUGE SINGLET ». Dans Proceedings of the SEWM2000 Meeting. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812799913_0034.

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Dittmaier, Stefan, Lukas Altenkamp, Michele Boggia et Heidi Rzehak. « Electroweak corrections in the Two-Higgs-Doublet Model and Singlet Extension of the Standard Model ». Dans Loops and Legs in Quantum Field Theory. Trieste, Italy : Sissa Medialab, 2018. http://dx.doi.org/10.22323/1.303.0011.

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Matsui, Toshinori. « Gravitational waves from the first order electroweak phase transition in the$ Z_{3}$ symmetric singlet scalar model ». Dans Corfu Summer Institute 2017 "Schools and Workshops on Elementary Particle Physics and Gravity". Trieste, Italy : Sissa Medialab, 2018. http://dx.doi.org/10.22323/1.318.0092.

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Lyon, Adam L. « Electroweak Physics at the Tevatron with Single Bosons ». Dans HADRON COLLIDER PHYSICS : 15th Topical Conference on Hadron Collider Physics : HCP2004. AIP, 2005. http://dx.doi.org/10.1063/1.1896695.

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Kemp, Yves. « Search for electroweak single top quark production with CDF ». Dans International Europhysics Conference on High Energy Physics. Trieste, Italy : Sissa Medialab, 2007. http://dx.doi.org/10.22323/1.021.0077.

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Kidonakis, Nikolaos. « Theoretical results for electroweak boson and single-top production ». Dans XXIII International Workshop on Deep-Inelastic Scattering. Trieste, Italy : Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.247.0170.

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Kivernyk, Oleh. « Latest results on single electroweak boson production from ATLAS experiment ». Dans Sixth Annual Conference on Large Hadron Collider Physics. Trieste, Italy : Sissa Medialab, 2018. http://dx.doi.org/10.22323/1.321.0295.

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Rapports d'organisations sur le sujet "Electroweak Singlet"

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Lueck, Jan. Kinematics of electroweak single top quark production. Office of Scientific and Technical Information (OSTI), janvier 2006. http://dx.doi.org/10.2172/879099.

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Benitez, Jorge Armando. Uncovering the single top : observation of electroweak top quark production. Office of Scientific and Technical Information (OSTI), janvier 2009. http://dx.doi.org/10.2172/965012.

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Buehler, Matthias. Search for Electroweak Single-Top Quark Production with the CDF II Experiment. Office of Scientific and Technical Information (OSTI), août 2006. http://dx.doi.org/10.2172/911841.

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Richter, Svenja. Search for electroweak single top-quark production with the CDF II experiment. Office of Scientific and Technical Information (OSTI), novembre 2007. http://dx.doi.org/10.2172/919938.

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Lueck, Jan. Observation of Electroweak Single Top-Quark Production with the CDF II Experiment. Office of Scientific and Technical Information (OSTI), juillet 2009. http://dx.doi.org/10.2172/966448.

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Stelzer, Bernd. Search for Electroweak Single Top Quark Production in 1.96 TeV Proton-Antiproton Collisions. Office of Scientific and Technical Information (OSTI), janvier 2005. http://dx.doi.org/10.2172/897064.

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Dong, Peter Joseph. Measurement of electroweak single top quark production in proton-antiproton collisions at 1.96 TeV. Office of Scientific and Technical Information (OSTI), janvier 2008. http://dx.doi.org/10.2172/929515.

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Walter, Thorsten. Search for electroweak single top quark production with cdf in proton - anti-proton collisions at √s = 1.96-TeV. Office of Scientific and Technical Information (OSTI), juin 2005. http://dx.doi.org/10.2172/15020244.

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Jabeen, Shabnam. Search for the single top quarks produced in s-channel via electroweak interactions at √s = 1.96 at the Tevatron. Office of Scientific and Technical Information (OSTI), janvier 2006. http://dx.doi.org/10.2172/897174.

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Acosta, D. Top physics : search for electroweak single top quark production in p anti-p collisions at s**(1/2) = 1.96 tev. Office of Scientific and Technical Information (OSTI), janvier 2005. http://dx.doi.org/10.2172/842914.

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