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Scientific paper - Original scientific paper
Gauge and scalar boson mediated proton decay in a predictive SU(5) GUT model
Physical Review D, 109 (2024), 7; 075023. https://doi.org/10.1103/PhysRevD.109.075023
Doršner, Ilja; Džaferović-Mašić, Emina; Fajfer, Svjetlana; Saad, Shaikh

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Doršner, I., Džaferović Mašić, E., Fajfer, S. & Saad, S. (2024). Gauge and scalar boson mediated proton decay in a predictive SU(5) GUT model. Physical Review D, 109. (7). doi: 10.1103/PhysRevD.109.075023

Doršner, Ilja, et al. "Gauge and scalar boson mediated proton decay in a predictive SU(5) GUT model." Physical Review D, vol. 109, no. 7, 2024. https://doi.org/10.1103/PhysRevD.109.075023

Doršner, Ilja, Emina Džaferović Mašić, Svjetlana Fajfer and Shaikh Saad. "Gauge and scalar boson mediated proton decay in a predictive SU(5) GUT model." Physical Review D 109, no. 7 (2024). https://doi.org/10.1103/PhysRevD.109.075023

Doršner, I., et al. (2024) 'Gauge and scalar boson mediated proton decay in a predictive SU(5) GUT model', Physical Review D, 109(7). doi: 10.1103/PhysRevD.109.075023

Doršner I, Džaferović Mašić E, Fajfer S, Saad S. Gauge and scalar boson mediated proton decay in a predictive SU(5) GUT model. Physical Review D [Internet]. 2024 [cited 2024 December 20];109(7). doi: 10.1103/PhysRevD.109.075023

I. Doršner, E. Džaferović Mašić, S. Fajfer and S. Saad, "Gauge and scalar boson mediated proton decay in a predictive SU(5) GUT model", Physical Review D, vol. 109, no. 7, 2024. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:322379. [Accessed: 20 December 2024]

Metadata
Title (english)Gauge and scalar boson mediated proton decay in a predictive SU(5) GUT model
AuthorIlja Doršner
AuthorEmina Džaferović-Mašić
AuthorSvjetlana Fajfer
AuthorShaikh Saad
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We assess proton decay signatures in the simplest viable SU(5) model with regard to constraints on parameters governing the Standard Model fermion mass spectrum. Experimental signals for all eight two-body proton decay processes result from exchange of two gauge bosons, a single scalar leptoquark, or their combination. Consequently, it enables us to delve into an in-depth anatomy of proton decay modes and anticipate future signatures. Our findings dictate that observing a proton decay into p→π0e+ indicates gauge boson mediation, with the potential for observation of p→η0e+ mode. Alternatively, if decay is through p→K+ν― process, it is mediated by a scalar leptoquark, possibly allowing the observation of p→π0μ+. Detection of both p→π0e+ and p→K+ν― could enhance p→π0μ+ through constructive interference. The model predicts inaccessibility of p→π+ν―, p→η0μ+, p→K0e+, and p→K0μ+, regardless of the dominant mediation type, in the coming decades. In summary, through a comprehensive analysis of proton decay signals, gauge coupling unification, and fermion masses and mixing, we both accurately and precisely constrain the parameter space of the SU(5) model in question.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review D
Numberingvol. 109, no. 7, 075023
p-ISSN2470-0010
e-ISSN2470-0029
DOIhttps://doi.org/10.1103/PhysRevD.109.075023
URN:NBNurn:nbn:hr:217:322379
Publication2024
Document URLhttps://link.aps.org/doi/10.1103/PhysRevD.109.075023
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public notePublished by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. Received 6 February 2024. Accepted 21 March 2024. Published 12 April 2024.
Created on2024-08-01 13:17:37