Constraints imposed by<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>CP</mml:mi></mml:math>conservation in the presence of pseudoparticles

Peccei, R.D.; Quinn, Helen R.

doi:10.1103/physrevd.16.1791

Cited by 2,836 publications

(2,239 citation statements)

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“…gauge mediated supersymmetry breaking gives the universality needed for this to vanish. There are currently three widely known classes of proposed solutions to the strong CP problem: (i) the axionic solution [365,366,367,368,369,370,371,372], (ii) the Nelson-Barr solution [373,374], and (iii) the m u = 0 solution [375].…”

Section: The Strong Cp Problemmentioning

confidence: 99%

The soft supersymmetry-breaking Lagrangian: theory and applications

Chung

Everett

Kane³

et al. 2005

Physics Reports

415

339

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After an introduction recalling the theoretical motivation for low energy (100 GeV to TeV scale) supersymmetry, this review describes the theory and experimental implications of the soft supersymmetry-breaking Lagrangian of the general minimal supersymmetric standard model (MSSM). Extensions to include neutrino masses and nonminimal theories are also discussed. Topics covered include models of supersymmetry breaking, phenomenological constraints from electroweak symmetry breaking, flavor/CP violation, collider searches, and cosmological constraints including dark matter and implications for baryogenesis and inflation.

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Section: The Strong Cp Problemmentioning

confidence: 99%

The soft supersymmetry-breaking Lagrangian: theory and applications

Chung

Everett

Kane³

et al. 2005

Physics Reports

415

339

View full text Add to dashboard Cite

show abstract

“…The axion model of Peccei, Quinn, Weinberg, and Wilczek [1,2,3,4] offers a dynamical solution to the strong CP problem by introducing a new scalar field which rolls within its potential into a state of minimum action, a CP-conserving QCD vacuum state. Any imbalance between the contributions to the EDM from the TeV and GeV scales is absorbed into the scalar field value.…”

Section: Introductionmentioning

confidence: 99%

Novel multiplex PCR for the detection of lactic acid bacteria during kimchi fermentation

Cho

Math

Islam

et al. 2009

Molecular and Cellular Probes

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Experimental searches for axions or axion-like particles rely on semiclassical phenomena resulting from the postulated coupling of the axion to two photons. Sensitive probes of the extremely small coupling constant can be made by exploiting familiar, coherent electromagnetic laboratory techniques, including resonant enhancement of transitions using microwave and optical cavities, Bragg scattering, and coherent photon-axion oscillations. The axion beam may either be astrophysical in origin as in the case of dark matter axion searches and solar axion searches, or created in the laboratory from laser interactions with magnetic fields. This note is meant to be a sampling of recent experimental results. IntroductionAxion models are motivated by the strong CP problem-the apparent vanishing of the CP-and Tviolating electric dipole moment (EDM) of the neutron. The total EDM is expected to receive contributions from both the TeV electroweak scale, via the quark spin, and from the GeV QCD scale, via the spatial distribution of the quark wavefunction within the neutron. It is difficult to understand how these two contributions could cancel to such precision to produce a CP-conserving QCD ground state without fine-tuning of parameters.The axion model of Peccei, Quinn, Weinberg, and Wilczek [1, 2, 3, 4] offers a dynamical solution to the strong CP problem by introducing a new scalar field which rolls within its potential into a state of minimum action, a CP-conserving QCD vacuum state. Any imbalance between the contributions to the EDM from the TeV and GeV scales is absorbed into the scalar field value. The quantized excitations of the scalar field about the potential minimum are called axions.The complex scalar potential starts as a Higgs-like Mexican hat potential, with symmetry-breaking scale f . A massless Goldstone boson lives in the circular minimum of this potential at radius f in field space. During the QCD phase transition, instanton effects give a linear tilt to this potential, lifting it by an amount Λ 4 QCD on one side. The degeneracy of the circular minimum is lifted, and the Goldstone boson starts rolling towards its minimum. While rolling, a portion of the energy from the quark-gluon plasma is stored temporarily as potential energy. The quantized excitations about the potential minimum are called axions, and have mass

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“…Peccei-Quinn (PQ) mechanism [1,2] provides an elegant solution to the strong CP problem. Promoting the θ-parameter to a dynamical variable, θ = 0 is realized after the spontaneous breaking of the PQ symmetry.…”

Section: Introductionmentioning

confidence: 99%

Thermal effects on saxion in supersymmetric model with Peccei–Quinn symmetry

Moroi¹,

Takimoto²

2012

Physics Letters B

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We consider supersymmetric model with Peccei-Quinn symmetry and study effects of saxion on the evolution of the universe, paying particular attention to the effects of thermal bath. The axion multiplet inevitably couples to colored particles, which induces various thermal effects. In particular, (i) saxion potential is deformed by thermal effects, and (ii) coherent oscillation of the saxion dissipates via the interaction with hot plasma. These may significantly affect the evolution of the saxion in the early universe.

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Constraints imposed byCPconservation in the presence of pseudoparticles

Cited by 2,836 publications

References 11 publications

The soft supersymmetry-breaking Lagrangian: theory and applications

The soft supersymmetry-breaking Lagrangian: theory and applications

Novel multiplex PCR for the detection of lactic acid bacteria during kimchi fermentation

Thermal effects on saxion in supersymmetric model with Peccei–Quinn symmetry

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