{"title":"希格斯玻色子和风味等级的共同起源","authors":"Javier M. Lizana","doi":"10.1007/JHEP05(2025)176","DOIUrl":null,"url":null,"abstract":"<p>We present a model that extends the electroweak gauge symmetry of the Standard Model in a non-universal way to <span>\\( \\textrm{SU}{(2)}_L^{\\prime}\\times \\textrm{U}{(1)}_X\\times \\textrm{SU}{(2)}_L^{q_3}\\times \\textrm{SU}{(2)}_R^{\\ell^3} \\)</span>. This symmetry is spontaneously broken to SU(2)<sub><i>L</i></sub> × U(1)<sub><i>Y</i></sub> near the TeV scale by a condensate of a new composite sector. Charging appropriately the fermionic degrees of freedom of the composite sector, anomaly cancellation enforces the Standard Model fermions to be charged in such a way that the extended gauge interactions respect a U(2)<sub><i>q</i></sub> × U(2)<sub><i>e</i></sub> × U(3)<sub><i>u</i></sub> × U(3)<sub><i>d</i></sub> × U(3)<sub><i>ℓ</i></sub> accidental flavor symmetry. In addition, from the same symmetry breaking, a composite Higgs boson emerges as a pseudo-Nambu-Goldstone boson of the strong dynamics of the new sector. Due to the extended gauge and the specific flavor symmetry, leading Yukawa couplings between Higgs and fermions can only be written for the third generation and higher dimension operators generate suppressed light-family Yukawa couplings. Furthermore, CKM mixing angles between third and light families result naturally suppressed while the PMNS ones, anarchic. The model thus provides a unified origin for the Higgs boson and the flavor hierarchies between third and light families.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4000,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)176.pdf","citationCount":"0","resultStr":"{\"title\":\"A common origin of the Higgs boson and the flavor hierarchies\",\"authors\":\"Javier M. Lizana\",\"doi\":\"10.1007/JHEP05(2025)176\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We present a model that extends the electroweak gauge symmetry of the Standard Model in a non-universal way to <span>\\\\( \\\\textrm{SU}{(2)}_L^{\\\\prime}\\\\times \\\\textrm{U}{(1)}_X\\\\times \\\\textrm{SU}{(2)}_L^{q_3}\\\\times \\\\textrm{SU}{(2)}_R^{\\\\ell^3} \\\\)</span>. This symmetry is spontaneously broken to SU(2)<sub><i>L</i></sub> × U(1)<sub><i>Y</i></sub> near the TeV scale by a condensate of a new composite sector. Charging appropriately the fermionic degrees of freedom of the composite sector, anomaly cancellation enforces the Standard Model fermions to be charged in such a way that the extended gauge interactions respect a U(2)<sub><i>q</i></sub> × U(2)<sub><i>e</i></sub> × U(3)<sub><i>u</i></sub> × U(3)<sub><i>d</i></sub> × U(3)<sub><i>ℓ</i></sub> accidental flavor symmetry. In addition, from the same symmetry breaking, a composite Higgs boson emerges as a pseudo-Nambu-Goldstone boson of the strong dynamics of the new sector. Due to the extended gauge and the specific flavor symmetry, leading Yukawa couplings between Higgs and fermions can only be written for the third generation and higher dimension operators generate suppressed light-family Yukawa couplings. Furthermore, CKM mixing angles between third and light families result naturally suppressed while the PMNS ones, anarchic. The model thus provides a unified origin for the Higgs boson and the flavor hierarchies between third and light families.</p>\",\"PeriodicalId\":635,\"journal\":{\"name\":\"Journal of High Energy Physics\",\"volume\":\"2025 5\",\"pages\":\"\"},\"PeriodicalIF\":5.4000,\"publicationDate\":\"2025-05-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)176.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of High Energy Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/JHEP05(2025)176\",\"RegionNum\":1,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Physics and Astronomy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of High Energy Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/JHEP05(2025)176","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Physics and Astronomy","Score":null,"Total":0}
A common origin of the Higgs boson and the flavor hierarchies
We present a model that extends the electroweak gauge symmetry of the Standard Model in a non-universal way to \( \textrm{SU}{(2)}_L^{\prime}\times \textrm{U}{(1)}_X\times \textrm{SU}{(2)}_L^{q_3}\times \textrm{SU}{(2)}_R^{\ell^3} \). This symmetry is spontaneously broken to SU(2)L × U(1)Y near the TeV scale by a condensate of a new composite sector. Charging appropriately the fermionic degrees of freedom of the composite sector, anomaly cancellation enforces the Standard Model fermions to be charged in such a way that the extended gauge interactions respect a U(2)q × U(2)e × U(3)u × U(3)d × U(3)ℓ accidental flavor symmetry. In addition, from the same symmetry breaking, a composite Higgs boson emerges as a pseudo-Nambu-Goldstone boson of the strong dynamics of the new sector. Due to the extended gauge and the specific flavor symmetry, leading Yukawa couplings between Higgs and fermions can only be written for the third generation and higher dimension operators generate suppressed light-family Yukawa couplings. Furthermore, CKM mixing angles between third and light families result naturally suppressed while the PMNS ones, anarchic. The model thus provides a unified origin for the Higgs boson and the flavor hierarchies between third and light families.
期刊介绍:
The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal.
Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles.
JHEP presently encompasses the following areas of theoretical and experimental physics:
Collider Physics
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Quantum Field Theory (phenomenology)
Strings and Branes
Phenomenological Aspects of Supersymmetry
Mostly Strong Interactions (phenomenology).