Proton decay in supersymmetric SU(4)_c × SU(2)_L × SU(2)_R

Journal Article · Tue Oct 13 00:00:00 EDT 2020 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep10(2020)085· OSTI ID:1851849

Lazarides, George ^[1]; Rehman, Mansoor Ur ^[2]; Shafi, Qaisar ^[3]

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1. Aristotle Univ. of Thessaloniki (Greece)
2. Quaid-i-Azam Univ., Islamabad (Pakistan)
3. Univ. of Delaware, Newark, DE (United States)

We discuss proton decay in a recently proposed model of supersymmetric hybrid inflation based on the gauge symmetry SU(4)_c × SU(2)_L × SU(2)_R. A U(1) R symmetry plays an essential role in realizing inflation as well as in eliminating some undesirable baryon number violating operators. Proton decay is primarily mediated by a variety of color triplets from chiral superfields, and it lies in the observable range for a range of intermediate scale masses for the triplets. The decay modes include p → e⁺(μ⁺) + π⁰, p→$$\bar{ν}$$+π⁺, p → K⁰ + e⁺(μ⁺), and p → K⁺+$$\bar{ν}$$, with a lifetime estimate of order 10³⁴–10³⁶ yrs and accessible at Hyper-Kamiokande and future upgrades. The unification at the Grand Unified Theory (GUT) scale M_GUT (~ 10¹⁶ GeV) of the Minimal Supersymmetric Standard Model (MSSM) gauge couplings is briefly discussed.

• Research Organization: Univ. of Delaware, Newark, DE (United States)
• Sponsoring Organization: USDOE Office of Science (SC); Hellenic Foundation for Research and Innovation (H.F.R.I.)
• Grant/Contract Number: SC0013880
• OSTI ID: 1851849
• Alternate ID(s): OSTI ID: 1998040
• Journal Information: Journal of High Energy Physics (Online), Vol. 2020, Issue 10; ISSN 1029-8479
• Publisher: Springer Nature
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
beyond standard model
GUT
cosmology of theories beyond the SM