Stabilizing the axion by discrete gauge symmetries

Babu, K. S.; Gogoladze, Ilia; Wang, Kai

doi:10.1016/s0370-2693(03)00411-8

Cited by 66 publications

(71 citation statements)

References 40 publications

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“…[69]. (For other works using discrete symmetries to protect the axion's interactions in models with extended gauge groups, see for example [104][105][106], and the recent [107,108]). …”

Section: Jhep02(2018)103mentioning

confidence: 99%

Axion predictions in SO(10) × U(1)PQ models

Ernst

Ringwald

Tamarit

2018

J. High Energ. Phys.

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Non-supersymmetric Grand Unified SO(10) × U(1) PQ models have all the ingredients to solve several fundamental problems of particle physics and cosmologyneutrino masses and mixing, baryogenesis, the non-observation of strong CP violation, dark matter, inflation -in one stroke. The axion -the pseudo Nambu-Goldstone boson arising from the spontaneous breaking of the U(1) PQ Peccei-Quinn symmetry -is the prime dark matter candidate in this setup. We determine the axion mass and the low energy couplings of the axion to the Standard Model particles, in terms of the relevant gauge symmetry breaking scales. We work out the constraints imposed on the latter by gauge coupling unification. We discuss the cosmological and phenomenological implications.

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“…[69]. (For other works using discrete symmetries to protect the axion's interactions in models with extended gauge groups, see for example [104][105][106], and the recent [107,108]). …”

Section: Jhep02(2018)103mentioning

confidence: 99%

Axion predictions in SO(10) × U(1)PQ models

Ernst

Ringwald

Tamarit

2018

J. High Energ. Phys.

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“…Usually, there is an unbroken discrete Z N subgroup of the U(1) A gauge symmetry, which is protected against quantum gravitational violation. We shall consider this Z N discrete symmetry as an approximate global U(1) P Q symmetry [23].…”

Section: Stabilization Of the Axion Solution And Peccei-quinn Symentioning

confidence: 99%

“…Usually, one only considers non-Abelian anomaly cancellations because the associated KacMoody level for U (1) is not an integer in general, hence this condition is not very useful from a low-energy effective theory point of view [23,24].…”

Section: Stabilization Of the Axion Solution And Peccei-quinn Symentioning

confidence: 99%

Axion models with high-scale supersymmetry breaking

et al. 2005

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Inspired by the possibility of high-scale supersymmetry breaking in the string landscape where the cosmological constant problem and the gauge hierarchy problem can be solved while the strong CP problem is still a challenge for naturalness, we propose a supersymmetric KSVZ axion model with an approximate universal intermediate-scale (∼ 10 11 GeV) supersymmetry breaking. To protect the global Peccei-Quinn (PQ) symmetry against quantum gravitational violation, we consider the gauged discrete Z N PQ symmetry. In our model the axion can be a cold dark matter candidate, and the intermediate supersymmetry breaking scale is directly related to the PQ symmetry breaking scale. Gauge coupling unification can be achieved at about 2.7 × 10 16 GeV. The Higgs mass range is 130 GeV to 160 GeV. We briefly discuss other axion models with high-scale supersymmetry breaking where the stabilization of the axion solution is similar.

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“…According to this definition, baryon number is an automatic symmetry at the renormalizable level due to the SM gauge symmetry. To this end, large discrete gauge symmetries such as Z n≥10 are conventionally invoked [16][17][18][19][20]. More recently, there have been some interesting alternative proposals for PQ symmetry protection which involve extra dimensions [21] and anthropic considerations [22,23].…”

Section: Jhep06(2010)074mentioning

confidence: 99%

“…In particular, we can retrofit the Yukawa interactions for the top and bottom quarks with the only allowed gauge invariant dimension 6 operators 19) where (bras) kets represent (anti-)fundamentals of SU (3) f . The vev of φ ± generates the heavy quark Yukawa couplings.…”

Section: A Simple Renormalizable Uv Completionmentioning

confidence: 99%

Axion protection from flavor

Cheung

2010

J. High Energ. Phys.

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The QCD axion fails to solve the strong CP problem unless all explicit PQ violating, Planck-suppressed, dimension n < 10 operators are forbidden or have exponentially small coefficients. We show that all theories with a QCD axion contain an irreducible source of explicit PQ violation which is proportional to the determinant of the Yukawa interaction matrix of colored fermions. Generically, this contribution is of low operator dimension and will drastically destabilize the axion potential, so its suppression is a necessary condition for solving the strong CP problem. We propose a mechanism whereby the PQ symmetry is kept exact up to n = 12 with the help of the very same flavor symmetries which generate the hierarchical quark masses and mixings of the SM. This "axion flavor protection" is straightforwardly realized in theories which employ radiative fermion mass generation and grand unification. A universal feature of this construction is that the heavy quark Yukawa couplings are generated at the PQ breaking scale.

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Stabilizing the axion by discrete gauge symmetries

Cited by 66 publications

References 40 publications

Axion predictions in SO(10) × U(1)PQ models

Axion predictions in SO(10) × U(1)PQ models

Axion models with high-scale supersymmetry breaking

Axion protection from flavor

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