Introduction to Supersymmetry: Astrophysical and Phenomenological Constraints

Olive, Keith A.

doi:10.1007/3-540-45334-2_5

Cited by 11 publications

(17 citation statements)

References 120 publications

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“…Supersymmetry provides well-motivated candidates for decaying dark matter (125,126,127). Supersymmetry doubles the particle content of nature by requiring opposite-statistics (fermion ↔ boson) partners for every known particle.…”

Section: Dark Matter Decay and Supersymmetrymentioning

confidence: 99%

The Primordial Lithium Problem

Fields

2011

Annu. Rev. Nucl. Part. Sci.

416

463

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Big-bang nucleosynthesis (BBN) theory, together with the precise WMAP cosmic baryon density, makes tight predictions for the abundances of the lightest elements. Deuterium and 4 He measurements agree well with expectations, but 7 Li observations lie a factor 3 − 4 below the BBN+WMAP prediction. This 4 − 5σ mismatch constitutes the cosmic "lithium problem," with disparate solutions possible. (1)

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Section: Dark Matter Decay and Supersymmetrymentioning

confidence: 99%

The Primordial Lithium Problem

Fields

2011

Annu. Rev. Nucl. Part. Sci.

416

463

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“…To derive a limit in the initial mass range m pl < M < 10 11 g, gravitinos emitted by black holes 2 were considered in [78]. Gravitinos are expected to be present in all local supersymmetric models, which are regarded as the more natural extensions of the standard model of high energy physics (see, e.g., [79] for an introductory review). 2 The limits on the abundance of PBHs from gravitino production were first calculated in [77].…”

Section: Gravitino Production By Pbh Evaporationmentioning

confidence: 99%

Cosmological Probes for Supersymmetry

Khlopov

2015

Symmetry

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The multi-parameter character of supersymmetric dark-matter models implies the combination of their experimental studies with astrophysical and cosmological probes. The physics of the early Universe provides nontrivial effects of non-equilibrium particles and primordial cosmological structures. Primordial black holes (PBHs) are a profound signature of such structures that may arise as a cosmological consequence of supersymmetric (SUSY) models. SUSY-based mechanisms of baryosynthesis can lead to the possibility of antimatter domains in a baryon asymmetric Universe. In the context of cosmoparticle physics, which studies the fundamental relationship of the micro-and macro-worlds, the development of SUSY illustrates the main principles of this approach, as the physical basis of the modern cosmology provides cross-disciplinary tests in physical and astronomical studies.

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“…The Minimal Supersymmetric Standard Model (MSSM) shows the possibility of the existence of the grand unification point at µ GUT ∼ 10 16 GeV [41]. But the absence of supersymmetric particle production at current accelerators and additional constraints arisen from limits on the contributions of virtual supersymmetric particle exchange to a variety of the SM processes indicate that at present there are no unambiguous experimental results requiring the existence of the supersymmetry [42], [43].…”

Section: Multiple Point Principle and The Higgs Monopole Modelmentioning

confidence: 99%

Phase Transition in the Higgs Model of Scalar Fields With Electric and Magnetic Charges

Лаперашвили

Nielsen²

2001

Int. J. Mod. Phys. A

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Using a one-loop renormalization group improvement for the effective potential in the Higgs model of electrodynamics with electrically and magnetically charged scalar fields, we argue for the existence of a triple (critical) point in the phase diagram (λrun, g 4 run ), where λrun is the renormalised running selfinteraction constant of the Higgs scalar monopoles and grun is their running magnetic charge. This triple point is a boundary point of three first-order phase transitions in the dual sector of the Higgs scalar electrodynamics: The "Coulomb" and two confinement phases meet together at this critical point. Considering the arguments for the one-loop approximation validity in the region of parameters around the triple point A we have obtained the following triple point values of the running couplings: (λ (A) , g 2 (A) ) ≈ (−13.4; 18.6), which are independent of the electric charge influence and two-loop corrections to g 2 run with high accuracy of deviations. At the triple point the mass of monopoles is equal to zero. The corresponding critical value of the electric fine structure constant turns out to be αcrit = π/g 2 (A) ≈ 0.17 by the Dirac relation. This value is close to the α lat crit ≈ 0.20 ± 0.015, which in a U (1) lattice gauge theory corresponds to the phase transition between the "Coulomb" and confinement phases. In our theory for α ≥ αcrit there are two phases for the confinement of the electrically charged particles. The results of the present paper are very encouraging for the Anti-grand unification theory which was developed previously as a realistic alternative to SUSY GUTs. The paper is also devoted to the discussion of this problem.

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Introduction to Supersymmetry: Astrophysical and Phenomenological Constraints

Abstract: These lectures contain an introduction to supersymmetric theories and the minimal supersymmetric standard model. Phenomenological and cosmological consequences of supersymmetry are also discussed.

Cited by 11 publications

References 120 publications

The Primordial Lithium Problem

The Primordial Lithium Problem

Cosmological Probes for Supersymmetry

Phase Transition in the Higgs Model of Scalar Fields With Electric and Magnetic Charges

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