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Di-boson signatures as standard candles for partial compositeness Highly Cited Paper

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Title
Di-boson signatures as standard candles for partial compositeness
Author(s)
Alexander Belyaev; Giacomo Cacciapaglia; Haiying Cai; Gabriele Ferretti; Thomas Flacke; Alberto Parolini; Hugo Serodio
Publication Date
2017-01
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v.2017, no.1, pp.094 -
Publisher
SPRINGER
Abstract
Composite Higgs Models are often constructed including fermionic top partners with a mass around the TeV scale, with the top partners playing the role of stabilizing the Higgs potential and enforcing partial compositeness for the top quark. A class of models of this kind can be formulated in terms of fermionic strongly coupled gauge theories. A common feature they all share is the presence of specific additional scalar resonances, namely two neutral singlets and a colored octet, described by a simple effective Lagrangian. We study the phenomenology of these scalars, both in a model independent and model dependent way, including the bounds from all the available searches in the relevant channels with di-boson and di-top final states. We develop a generic framework which can be used to constrain any model containing pseudo-scalar singlets or octets. Using it, we find that such signatures provide strong bounds on the compositeness scale complementary to the traditional EWPT and Higgs couplings deviations. In many cases a relatively light scalar can be on the verge of discovery as a first sign of new physics. © 2017, The Author(s)
URI
https://pr.ibs.re.kr/handle/8788114/3498
ISSN
1029-8479
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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