Comptes Rendus
no. 1
W ± and Z 0 boson physics
[La physique des bosons W ± et Z 0 ]
Frederic Teubert1  ; Pippa Wells1
1 European Organization for Nuclear Research (CERN), Geneva, Switzerland
Comptes Rendus. Physique, Volume 21 (2020) no. 1, pp. 9-22.

Les mesures de précision effectuées sur les bosons W ± et Z 0 aux collisionneurs e + e - et hadroniques ont permis de tester le Modèle Standard en tant que théorie quantique des champs, c’est-à-dire incluant des corrections quantiques d’ordre élevé. L’accord entre ces mesures et le Modèle Standard contraint fortement les scenarii de nouvelle physique. Des collaborations étroites entre expérimentateurs et théoriciens ainsi qu’entre expérimentateurs des différentes expériences, telles que celles engagées dans les années 1990, sont indispensables pour atteindre une grande precision. Un excellent contrôle des incertitudes systématiques expérimentales ainsi qu’une détermination de l’énergie des faisceaux et de leur intensité avec un niveau de précision qui n’avait encore jamais été atteint ont été indispensables pour un grand nombre de ces mesures. De futurs accélérateurs sont actuellement proposés afin d’accroître encore la précision de ces tests du Modèle Standard.

Precision measurements of the weak bosons (Z 0 and W ± ) at e + e - and hadron colliders have allowed the Standard Model to be tested as a quantum field theory, requiring the inclusion of higher order quantum loop corrections. The agreement of these measurements with the Standard Model puts strong constrains on New Physics scenarios. To achieve such precision, a close collaboration between experimenters and theorists, as well as between experimenters in different collaborations was pioneered in the 90s. A superb control of the experimental systematic uncertainties as well as an unprecedented level of precision on the collider beam energy and intensity was required in many of these measurements. New accelerators are proposed in the future that could improve these tests of the Standard Model even further.

Publié le :
DOI : 10.5802/crphys.7
Keywords: Large hadron collider, $Z^0$, $W^{\pm }$
Mot clés : Grand collisionneur de hadrons, $Z^0$, $W^{\pm }$
Frederic Teubert 1 ; Pippa Wells 1

1 European Organization for Nuclear Research (CERN), Geneva, Switzerland
Licence : CC-BY 4.0
Droits d'auteur : Les auteurs conservent leurs droits 
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Frederic Teubert; Pippa Wells. $W^{\pm }$ and $Z^0$ boson physics. Comptes Rendus. Physique, Volume 21 (2020) no. 1, pp. 9-22. doi : 10.5802/crphys.7. https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.7/

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