Unification without supersymmetry: Neutrino mass, proton decay and light leptoquarks
By I. Doršner, P. Pérez. 2005
152 citations recorded by the source corpus.
Abstract We investigate predictions of a minimal realistic non-supersymmetric SU ( 5 ) grand unified theory. To accomplish unification and generate neutrino mass we introduce one extra Higgs representation—a 15 of SU ( 5 ) —to the particle content of the minimal Georgi–Glashow scenario. Generic prediction of this setup is a set of rather light scalar leptoquarks. In the case of the most natural implementation of the type II see-saw mechanism their mass is in the phenomenologically interesting region ( O ( 10 2 – 10 3 ) GeV ). As such, our scenario has a potential to be tested at the next generation of collider experiments, particularly at the Large Hadron Collider (LHC) at CERN. The presence of the 15 generates additional contributions to proton decay which, for light scalar leptoquarks, can be more important than the usual gauge d = 6 ones. We exhaustively study both and show that the scenario is not excluded by current experimental bounds on nucleon lifetimes.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/b469a06f9e21e734ca2a460a98f3776611b40c06
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In Nuclear and High Energy Physics
Citations in the corpus
- Large underground, liquid based detectors for astro-particle physics in Europe: scientific case and prospects (2007, unknown): “References for the different models are: (1) [43], (2) [44, 45], (3) [46], (4) [47]–[50], (5) [51]–[54], (6) [55], (7) [56], (8) [57].”
- Proton stability in grand unified theories, in strings and in branes (2006, methodology): “In order to generate neutrino mass in these theories we have to add 15H Higgs (See for example [211]) or the right handed neutrinos.”
- Lepton Number Violation: Seesaw Models and Their Collider Tests (2017, methodology): “In a realistic extension of the Georgi-Glashow model, a scalar 15dimensional representation is added [430] and the scalar triplet stays in the 15 representation together with scalar leptoquark 8 ∼ (3, 2, 1/6).”
- The Search for Heavy Majorana Neutrinos (2009, background): “Examples include Left-Right symmetric gauge theories [3]; SO(10) Supersymmetric (SUSY) grand unification [4] and other grand unified theories [5]; models with exotic Higgs representations [6, 7]; R-parity violating interactions (∆L = 1) in Supersymmetry (SUSY) [8] and theories with extra dimensions ”