{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:08:12Z","timestamp":1760234892076,"version":"build-2065373602"},"reference-count":51,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2021,6,24]],"date-time":"2021-06-24T00:00:00Z","timestamp":1624492800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","award":["CERN\/FIS-COM\/0035\/2019","UID\/FIS\/04564\/ 2020"],"award-info":[{"award-number":["CERN\/FIS-COM\/0035\/2019","UID\/FIS\/04564\/ 2020"]}]},{"name":"COST - European Cooperation in Science and Tachnology","award":["COST Action CA16201"],"award-info":[{"award-number":["COST Action CA16201"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Here, we use the Schwinger\u2013DeWitt approach to address the four-fermion composite Higgs effective model proposed by Miransky, Tanabashi and Yamawaki (MTY). The surprising benefit of such an approach is that it is possible to ascribe to a SM-type Higgs a quark\u2013antiquark structure of predominantly a b\u00afb nature with a small t\u00aft admixture, which in turn yields a Higgs mass compatible with the observed value of 125 GeV. We discuss this result in a detailed and pedagogical way, as it goes against the common belief that this model and akin composite descriptions should predict a Higgs mass-of-order of twice the top quark mass, contrary to empirical evidence. A further aspect of this approach is that it highlights the link of the SU(2)L\u00d7U(1)R symmetric four-fermion MTY model interactions of the heavy quark family to a specific two-Higgs-doublet model (2HDM), and the necessity to go beyond the one Higgs doublet to obtain the empirical Higgs mass within composite models. By appropriately fixing the symmetry-defining interaction parameters, we show that the resulting CP-preserving spectrum harbors the following collective states at the electroweak scale \u039bEW=246 GeV: a light scalar to which the standard Higgs is associated; a heavier neutral state preconized as the Nambu partner of the standard Higgs within the Nambu sum rule; the expected triplet of Goldstone bosons associated with the longitudinal polarizations of the electroweak massive bosons; and a neutral pseudoscalar state that in the limit of a global U(1)A symmetry would be a Goldstone mode. The anomalous breaking of this axial symmetry is a subleading effect in a large Nc counting scheme, and we discuss how it modifies the leading-order Nambu sum rule result and its relevance for the qualitative description of the spectrum.<\/jats:p>","DOI":"10.3390\/sym13071130","type":"journal-article","created":{"date-parts":[[2021,6,24]],"date-time":"2021-06-24T23:22:14Z","timestamp":1624576934000},"page":"1130","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Top\u2013Bottom Condensation Model: Symmetries and Spectrum of the Induced 2HDM"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1871-6771","authenticated-orcid":false,"given":"Alexander A.","family":"Osipov","sequence":"first","affiliation":[{"name":"Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna, Russia"}]},{"given":"Brigitte","family":"Hiller","sequence":"additional","affiliation":[{"name":"CFisUC, Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5997-8773","authenticated-orcid":false,"given":"Alex H.","family":"Blin","sequence":"additional","affiliation":[{"name":"CFisUC, Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal"}]},{"given":"Marcos","family":"Sampaio","sequence":"additional","affiliation":[{"name":"CCNH Centro de Ci\u00eancias Naturais e Humanas, Universidade Federal do ABC, Santo Andr\u00e9 09210-580, SP, Brazil"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"100045","DOI":"10.1016\/j.revip.2020.100045","article-title":"Higgs boson potential at colliders: Status and perspectives","volume":"5","author":"Micco","year":"2020","journal-title":"Rev. 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