A modified BESS model as the effective description of strong electroweak symmetry breaking

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F09%3A00163876" target="_blank" >RIV/68407700:21670/09:00163876 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A modified BESS model as the effective description of strong electroweak symmetry breaking

Popis výsledku v původním jazyce

Facing the plethora of alternative hypotheses for the mechanism of electroweak symmetry breaking (ESB) it is highly desirable to typify its phenomenology using the effective Lagrangians. The BESS (Breaking Electroweak Symmetry Strongly) model is one of them. The model couples the vector resonances universally to all Standard model (SM) fermion generations. We have modified the model by allowing direct interactions of the vector triplet with the third quark generation only. This is motivated by the extraordinary mass of the top quark which is close to the ESB scale. In addition, we have introduced new Lagrangian terms admitted by the model's symmetries. Our modifications of the BESS model can significantly relax the low-energy limits on the original BESS model's parameters. Further, due to the modifications the new vector resonances became narrower. Here, we present the new model's basic phenomenology and compare it to the original BESS model.

Název v anglickém jazyce

A modified BESS model as the effective description of strong electroweak symmetry breaking

Popis výsledku anglicky

Facing the plethora of alternative hypotheses for the mechanism of electroweak symmetry breaking (ESB) it is highly desirable to typify its phenomenology using the effective Lagrangians. The BESS (Breaking Electroweak Symmetry Strongly) model is one of them. The model couples the vector resonances universally to all Standard model (SM) fermion generations. We have modified the model by allowing direct interactions of the vector triplet with the third quark generation only. This is motivated by the extraordinary mass of the top quark which is close to the ESB scale. In addition, we have introduced new Lagrangian terms admitted by the model's symmetries. Our modifications of the BESS model can significantly relax the low-energy limits on the original BESS model's parameters. Further, due to the modifications the new vector resonances became narrower. Here, we present the new model's basic phenomenology and compare it to the original BESS model.

Druh

D - Stať ve sborníku

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of Science

ISBN

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ISSN

1824-8039

e-ISSN

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Počet stran výsledku

3

Strana od-do

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Název nakladatele

SISSA/ISAS

Místo vydání

Trieste

Místo konání akce

Krakow

Datum konání akce

16. 7. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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