Preprint Article Version 3 Preserved in Portico This version is not peer-reviewed

Revisiting Constraints of Fourth-Generation Quarks and Leptons

Version 1 : Received: 18 May 2020 / Approved: 25 May 2020 / Online: 25 May 2020 (11:03:06 CEST)
Version 2 : Received: 6 June 2020 / Approved: 7 June 2020 / Online: 7 June 2020 (17:57:34 CEST)
Version 3 : Received: 6 August 2020 / Approved: 7 August 2020 / Online: 7 August 2020 (06:50:55 CEST)
Version 4 : Received: 26 August 2020 / Approved: 28 August 2020 / Online: 28 August 2020 (09:55:16 CEST)
Version 5 : Received: 18 September 2020 / Approved: 21 September 2020 / Online: 21 September 2020 (03:31:52 CEST)

How to cite: Verma, A. Revisiting Constraints of Fourth-Generation Quarks and Leptons. Preprints 2020, 2020050409. Verma, A. Revisiting Constraints of Fourth-Generation Quarks and Leptons. Preprints 2020, 2020050409.


Standard Model is well-performing under the three-generation, but in the wake of more physics, fourth-generation leptons and quarks are introduced. In this paper, We will be reviewing various constraints surrounding quarks and leptons of 4th Generation and tried to show the importance of quarks to understand the baryogenesis. We talked about, reviewed existing parameters and set the updated lower limits of t’ and b’ by analysis. And predicted an updated version of lower mass bounds quarks and leptons. It is also reviewed that fourth generation leptons are primarily not possible because of disintegration of Higgs Boson and an interpretation has been setup. And in final, we talked about the Unified Standard Model.


Beyond the Standard Model; Fourth Generation Particles; Lepton Sector; Quarks Sector


Physical Sciences, Particle and Field Physics

Comments (1)

Comment 1
Received: 7 August 2020
Commenter: Aayush Verma
Commenter's Conflict of Interests: Author
Comment: This version has been updated with corrections and electroweak mechanism, though not deep.
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