Proton stability in grand unified theories, in strings and in branes

By P. Nath, P. Pérez. 2006

412 citations recorded by the source corpus.

Abstract A broad overview of the current status of proton stability in unified models of particle interactions is given which includes non-supersymmetric unification, SUSY and SUGRA unified models, unification based on extra dimensions, and string-M-theory models. The extra dimensional unification includes 5D and 6D and universal extra dimensional (UED) models, and models based on warped geometry. Proton stability in a wide array of string theory and M theory models is reviewed. These include Calabi–Yau models, grand unified models with Kac–Moody levels k > 1 , a new class of heterotic string models, models based on intersecting D branes, and string landscape models. The destabilizing effect of quantum gravity on the proton is discussed. The possibility of testing grand unified models, models based on extra dimensions and string-M-theory models via their distinctive modes is investigated. The proposed next generation proton decay experiments, HyperK, UNO, MEMPHYS, ICARUS, LANNDD (DUSEL), and LENA would shed significant light on the nature of unification complementary to the physics at the LHC. Mathematical tools for the computation of proton lifetime are given in the appendices. Prospects for the future are discussed.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c7cb3c546b77e62fd2114eba992de539e8af8515

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In Nuclear and High Energy Physics

1. Y. Farzan
2. M. Tórtola
3. M. Maltoni
4. T. Schwetz
5. S. King
6. Ralph Blumenhagen
7. T. Weigand
8. M. Cvetič

Citations in the corpus

• Naturalness and the Status of Supersymmetry (2013, background): “A full justification requires a complete discussion of GUTs and proton decay [29, 30], but roughly speaking, heavy sfermions suppress the leading contributions to proton decay, and there is sufficient freedom in threshold corrections from the GUT-scale spectrum to allow unification even for relative”
• Leptogenesis (2008, neutral): “(For a review of proton decay, see [144].”
• Physics of leptoquarks in precision experiments and at particle colliders (2016, background): “Even though the notion of LQs has been on the market for more than forty years there is only a handful of reviews that cover the diverse aspects of LQ phenomenology [3, 4, 5].”
• Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics (2020, background): “Grand unified theories (GUTs), extending the standard model of particle physics to include a unified gauge symmetry at very high energies (more than 1× 1015 GeV), predict a number of observable effects at low energies, such as nucleon decay [205, 206, 207, 208, 209, 33].”
• The Long-Baseline Neutrino Experiment: Exploring Fundamental Symmetries of the Universe (2013, background): “The theoretical motivation for the study of proton decay has a long and distinguished history [92,93,94] and has been reviewed many times [95,96,97].”
• Neutrino mass and mixing with discrete symmetry (2013, background): “For an extensive review on proton stability in grand unified theories we refer the reader to [143].”
• Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF (2015, background): “The theoretical motivation for the study of proton decay has a long and distinguished history [86, 87, 88] and has been reviewed many times [89, 90, 91].”
• Large underground, liquid based detectors for astro-particle physics in Europe: scientific case and prospects (2007, background): “Proton decay [1], in particular, is one of the most exciting predictions of grand unified theories (for a review see [2]) aiming at the unification of fundamental forces in Nature.”
• Spacetime instanton corrections in 4D string vacua: The Seesaw mechanism for D-Brane models (2006, background): “In fact, the phenomenological bounds from these couplings always involve the product λ λ [58] and therefore, even after taking the E2-instanton corrections into account, the proton is stable in the MSSM intersecting D-brane model.”
• Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects (2015, background): “The theoretical motivation for the study of proton decay has a long and distinguished history [86, 87, 88] and has been reviewed many times [89, 90, 91].”
• Baryon number and lepton universality violation in leptoquark and diquark models (2017, background): “A detailed review of the subject can be found in [5].”