Inflation and Monopoles in Supersymmetric SU(4)_c x SU(2)_L x SU(2)_R

G. Lazarides (Aristotle U. of Thessaloniki); Q. Shafi (Bartol Research Inst.); R. Jeannerot (ICTP; S. Khalil (U.Autonoma de Madrid & U. Ain Shams); Trieste)

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Inflation and Monopoles in Supersymmetric SU(4)_c x SU(2)_L x SU(2)_R

R. Jeannerot (ICTP, Trieste), S. Khalil (U.Autonoma de Madrid & U. Ain Shams), G. Lazarides (Aristotle U. of Thessaloniki), Q. Shafi (Bartol Research Inst.)

High Energy Physics - Phenomenology · Submitted 14 Feb 2000

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We show how hybrid inflation can be successfully realized in a supersymmetric model with gauge group G_{PS}= SU(4)_c x SU(2)_L x SU(2)_R.

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arXiv IDhep-ph/0002151 (version 5)

Pith IDW4POJMIC, Pith's permanent record of this paper and its review

CitationG. Lazarides (Aristotle U. of Thessaloniki), Q. Shafi (Bartol Research Inst.), R. Jeannerot (ICTP, S. Khalil (U.Autonoma de Madrid & U. Ain Shams), Trieste). "Inflation and Monopoles in Supersymmetric SU(4)_c x SU(2)_L x SU(2)_R." arXiv:hep-ph/0002151 (2000). https://pith.science/paper/W4POJMIC

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.12 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.98 · compares with prior results 0.22 · mentions code or data availability 0.01.

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arXiv listing abstract v5. Results and the main claim are underlined; show every role.

We show how hybrid inflation can be successfully realized in a supersymmetric model with gauge group G_{PS}= SU(4)_c x SU(2)_L x SU(2)_R. By including a non-renormalizable superpotential term, we generate an inflationary valley along which G_{PS} is broken to the standard model gauge group. Thus, catastrophic production of the doubly charged magnetic monopoles, which are predicted by the model, cannot occur at the end of inflation. The results of the cosmic background explorer can be reproduced with natural values (of order 10^{-3}) of the relevant coupling constant, and symmetry breaking scale of G_{PS} close to 10^{16} GeV. The spectral index of density perturbations lies between unity and 0.9. Moreover, the mu-term is generated via a Peccei-Quinn symmetry and proton is practically stable. Baryogenesis in the universe takes place via leptogenesis. The low deuterium abundance constraint on the baryon asymmetry, the gravitino limit on the reheat temperature and the requirement of almost maximal mu neutrino - tau neutrino mixing from SuperKamiokande can be simultaneously met with mu-neutrino, tau-neutrino and heaviest Dirac neutrino masses determined from the large angle MSW resolution of the solar neutrino problem, the SuperKamiokande results and SU(4)_c symmetry respectively.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We show how hybrid inflation can be successfully realized in a supersymmetric model with gauge group G_{PS}= SU(4)_c x SU(2)_L x SU(2)_R.	contribution 0.97	0.94	0.36	asserted 1.00
s1	By including a non-renormalizable superpotential term, we generate an inflationary valley along which G_{PS} is broken to the standard model gauge group.	method 0.88	0.90	0.09	asserted 1.00
s2	Thus, catastrophic production of the doubly charged magnetic monopoles, which are predicted by the model, cannot occur at the end of inflation.	result 0.55	0.77	0.49	asserted 0.93
s3	The results of the cosmic background explorer can be reproduced with natural values (of order 10^{-3}) of the relevant coupling constant, and symmetry breaking scale of G_{PS} close to 10^{16} GeV.	result 0.99	0.80	0.09	asserted 0.92
s4	The spectral index of density perturbations lies between unity and 0.9.	result 1.00	0.86	0.06	asserted 1.00
s5	Moreover, the mu-term is generated via a Peccei-Quinn symmetry and proton is practically stable.	result 0.76	0.77	0.06	asserted 1.00
s6	Baryogenesis in the universe takes place via leptogenesis.	result 0.84	0.54	0.06	asserted 1.00
s7	The low deuterium abundance constraint on the baryon asymmetry, the gravitino limit on the reheat temperature and the requirement of almost maximal mu neutrino - tau neutrino mixing from SuperKamiokande can be simultaneously met with mu-neutrino, tau-neutrino and heaviest Dirac neutrino masses determined from the large angle MSW resolution of the solar neutrino problem, the SuperKamiokande results and SU(4)_c symmetry respectively.	result 0.95	0.67	0.07	asserted 0.87

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.95.

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not examined

full text
figures and tables
references and citing sentences
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P abstract

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S sections
T body sentences
C citations
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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We show how hybrid inflation can be successfully realized in a supersymmetric model with gauge group G_{PS}= SU(4)_c x SU(2)_L x SU(2)_R. By including a non-renormalizable superpotential term, we generate an inflationary valley along which G_{PS} is broken to the standard model gauge group. Thus, catastrophic production of the doubly charged magnetic monopoles, which are predicted by the model, cannot occur at the end of inflation. The results of the cosmic background explorer can be reproduced with natural values (of order 10^{-3}) of the relevant coupling constant, and symmetry breaking scale of G_{PS} close to 10^{16} GeV. The spectral index of density perturbations lies between unity and 0.9. Moreover, the mu-term is generated via a Peccei-Quinn symmetry and proton is practically stable. Baryogenesis in the universe takes place via leptogenesis. The low deuterium abundance constraint on the baryon asymmetry, the gravitino limit on the reheat temperature and the requirement of almost maximal mu neutrino - tau neutrino mixing from SuperKamiokande can be simultaneously met with mu-neutrino, tau-neutrino and heaviest Dirac neutrino masses determined from the large angle MSW resolution of the solar neutrino problem, the SuperKamiokande results and SU(4)_c symmetry respectively.

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References

Forward citations

Cited by 8 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Gravitational Waves of GUT Phase Transition during Inflation
hep-ph 2025-01 conditional novelty 7.0 of 10

A general deformation function maps gravitational wave spectra from phase transitions during inflation into today's spectrum; for GUT-scale transitions the peak can appear near 10 Hz or mHz.
TeV Scale Quark-Lepton Unification
hep-ph 2025-12 unverdicted novelty 6.0 of 10

A quark-lepton unified Pati-Salam model with Z2 symmetry realizes a leptoquark gauge boson as light as 4.3 TeV, compatible with LHC and flavor constraints, and predicts testable lepton flavor violation plus new vector...
GUT-Scale Smooth Hybrid Inflation with a Stabilized Modulus in Light of ACT and SPT Data
hep-ph 2025-10 conditional novelty 6.0 of 10

A smooth hybrid inflation model, augmented with a stabilized modulus, reproduces the spectral index measured by ACT and SPT while keeping Higgs v.e.v.s at the GUT scale.
Supersymmetric Hybrid Inflation with K\"{a}hler-Induced $\mathbf{R}$-Symmetry Breaking
hep-ph 2025-06 conditional novelty 5.0 of 10

Nonrenormalizable R-symmetry breaking in the Kahler potential can tune the spectral index of supersymmetric hybrid inflation into the ACT DR6 window while keeping tensor modes below 1e-5.
Hybrid cosmological attractors
hep-th 2022-04 conditional novelty 4.0 of 10

Uplifting an α-attractor potential with a hybrid-inflation sector produces a second attractor with ns = 1, continuously interpolating to the standard 1 - 2/N as the uplift or critical field shrinks.

Show 3 more citing papers

Supersymmetric Hybrid Inflation in light of Atacama Cosmology Telescope Data Release 6, Planck 2018 and LB-BK18
astro-ph.CO 2025-04 conditional novelty 3.0 of 10

A known supersymmetric hybrid inflation model, with soft supersymmetry-breaking and supergravity terms included, can produce a spectral index n_s in 0.96 to 0.98, consistent with ACT DR6, Planck 2018 and BK18, by choo...
Particle physics models of inflation and curvaton scenarios
hep-ph 2010-01 accept novelty 3.0 of 10

The review argues that inflatons and curvatons built from MSSM flat directions are the class most tightly tied to known particle physics, and therefore the class most likely to be falsified by CMB and collider data.
Supergravity based inflation models: a review
astro-ph.CO 2011-01 accept novelty 1.0 of 10

Supergravity can accommodate new, hybrid, chaotic, and topological inflation, and Jordan-frame supergravity can host Higgs inflation, provided the Kähler potential or D-term structure is chosen to avoid the eta problem.

How the literature uses it

37 arXiv papers cite this in 56 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers whose main result relates to this one's

Found among the papers closest to this one by title and main claim. Pith's classifier compared each pair's main results and a second model family confirmed the relation; checked against two further families, shown conflicts agreed 118 times in 120 and shown same results 218 times in 239. The quoted sentence is the other paper's main claim.

States the same result 1 paper

We present a concrete supersymmetric grand unified model based on the Pati-Salam gauge group SU(4)_c x SU(2)_L x SU(2)_R and leading naturally to smooth hybrid inflation, which avoids the cosmological disaster encountered in the standard hybrid inflationary scenario from the overproduction of monopoles at the end of inflation.

Leptogenesis in Smooth Hybrid Inflation · 0.83

Papers citing it · 38 sentences without a confident label

Uses its method or tool 2 papers

One way to do this in our case is to invoke shifted hybrid inflation [ref] where a nonrenormalizable term ($S[(Φ_L^cΦ_L)^2+(Φ_R^cΦ_R)^2]$) is added to the superpotential.

SU(4)_C X SU(2)_L X SU(2)_R Models With C-parity · Introduction · 0.89
Using the Coleman-Weinberg formula [ref] , the 1-loop contribution may be written as [ref] [equation] where $Q$ is the renormalization scale, and we have defined the useful parametrizations [equation] which we will use throughout our analysis.

Red Spectral Tilt and Observable Gravity Waves in Shifted Hybrid Inflation · Review of Shifted Hybrid Models · 0.92

Uses its data or values 1 paper

The relevant part of the superpotential, including the leading non-renormalizable term, is W=S(-M^2+H^c^c)+βS (H^c^c)^2/M_S^2, where $M_S∼517GeV$ is a superheavy string scale [ref] .

Phenomenology and Cosmology of Supersymmetric Grand Unified Theories · Smooth hybrid inflation · 0.84

Compares with it 1 paper

This was also accomplished in Refs. [ref] where the energy scale during inflation was associated with a $B - L$ breaking scale.[In previous models in the literature, Refs. [ref] , the energy scale during inflation was also related to a GUT symmetry breaking scale.

A Pati-Salam Version of Subcritical Hybrid Inflation · Introduction · 0.90

Cites it as background 14 papers

In the standard version of SUSY hybrid inflation [ref] GUT symmetry is broken at the end of inflation whereas in the shifted [ref] and the smooth [ref] versions of the model it is broken during inflation.

Simplified Smooth Hybrid Inflation in Supersymmetric SU(5) · Introduction · 0.92
Unlike the standard hybrid inflation scenario, where the gauge symmetry remains unbroken during inflation and is subsequently broken at the waterfall transition, shifted hybrid inflation incorporates higher-dimensional superpotential operators that displace the inflationary trajectory away from the origin, allowing the gauge symmetry to be broken already during inflation [ref] .

Shifted Hybrid Realization of Non-Minimal Higgs Inflation in Light of ACT DR6 and Planck Data · Introduction · 0.94
Among all these variants, shifted [ref] and smooth [ref] hybrid inflation models are the simplest ones.

Simplified Smooth Inflation with Observable Gravity Waves · Introduction · 0.88

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