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Articles de revues sur le sujet « Supersymmetry - Dark Matter »

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Auteur : Grafiati
Publié le 7 septembre 2023

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1

Heinemeyer, Sven, et Carlos Muñoz. « Dark Matter in Supersymmetry ». Universe 8, no 8 (18 août 2022) : 427. http://dx.doi.org/10.3390/universe8080427.

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Supersymmetry is a well-motivated theory for physics beyond the Standard Model. In particular, supersymmetric models can naturally possess dark matter candidates that can give rise to the measured dark matter content of the universe. We review several models that have been analyzed with regard to dark matter by groups based in Spain in recent years. These models include, in particular, the Minimal Supersymmetric Standard Model (MSSM) and the ‘μ from ν’ Supersymmetric Standard Model (μνSSM) in various versions.
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2

Behbahani, Siavosh R., Martin Jankowiak, Tomas Rube et Jay G. Wacker. « Nearly Supersymmetric Dark Atoms ». Advances in High Energy Physics 2011 (2011) : 1–34. http://dx.doi.org/10.1155/2011/709492.

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Theories of dark matter that support bound states are an intriguing possibility for the identity of the missing mass of the Universe. This article proposes a class of models of supersymmetric composite dark matter where the interactions with the Standard Model communicate supersymmetry breaking to the dark sector. In these models, supersymmetry breaking can be treated as a perturbation on the spectrum of bound states. Using a general formalism, the spectrum with leading supersymmetry effects is computed without specifying the details of the binding dynamics. The interactions of the composite states with the Standard Model are computed, and several benchmark models are described. General features of nonrelativistic supersymmetric bound states are emphasized.
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3

GOGOLADZE, ILIA, RIZWAN KHALID, SHABBAR RAZA et QAISAR SHAFI. « NEUTRALINO DARK MATTER IN FLIPPED SU(5) ». Modern Physics Letters A 25, no 40 (28 décembre 2010) : 3371–79. http://dx.doi.org/10.1142/s0217732310034602.

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We investigate neutralino dark matter in supersymmetric flipped SU(5), focusing on candidates with masses of order 30–150 GeV and spin-independent cross-sections that are consistent with the most recent CDMS II results. We assume gravity mediated supersymmetry breaking and restrict the magnitude of the soft supersymmetry breaking mass parameters to 1 TeV or less. With non-universal soft gaugino and Higgs masses, and taking flipped SU(5) into account, we identify allowed regions of the parameter space and highlight some benchmark solutions including Higgs and sparticle spectroscopy.
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4

Olive, Keith A. « Supersymmetric versus SO(10) models of dark matter ». International Journal of Modern Physics A 32, no 13 (5 mai 2017) : 1730010. http://dx.doi.org/10.1142/s0217751x17300101.

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After the results of Run I, can we still “guarantee” the discovery of supersymmetry at the LHC? It is shown that viable dark matter candidates in CMSSM-like models tend to lie in strips (coannihilation, funnel, focus point) in parameter space. The role of grand unification in constructing supersymmetric models is discussed and it is argued that nonsupersymmetric GUTs such as SO(10) may provide alternative solutions to many of the standard problems addressed by supersymmetry.
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5

Capolupo, Antonio. « Quantum Vacuum, Dark Matter, Dark Energy, and Spontaneous Supersymmetry Breaking ». Advances in High Energy Physics 2018 (10 avril 2018) : 1–7. http://dx.doi.org/10.1155/2018/9840351.

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We study the behavior of the vacuum condensates characterizing many physical phenomena. We show that condensates due to thermal states, to fields in curved space, and to neutrino mixing, may represent new components of the dark matter, whereas the condensate due to axion-photon mixing can contribute to the dark energy. Moreover, by considering a supersymmetric framework, we show that the nonzero energy of vacuum condensates may induce a spontaneous supersymmetry breaking.
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6

Roszkowski, Leszek. « Supersymmetry and dark matter ». Nuclear Physics B - Proceedings Supplements 124 (juillet 2003) : 30–37. http://dx.doi.org/10.1016/s0920-5632(03)02074-7.

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7

Addazi, Andrea, et Maxim Yu Khlopov. « Dark matter from Starobinsky supergravity ». Modern Physics Letters A 32, no 15 (11 avril 2017) : 1740002. http://dx.doi.org/10.1142/s0217732317400028.

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We review our recent results on dark matter from Starobinsky supergravity. In this context, a natural candidate for cold dark matter is the gravitino. On the other hand, assuming the supersymmetry broken at scales much higher than the electroweak scale, gravitinos are superheavy particles. In this case, they may be non-thermally produced during inflation, in turn originated by the scalaron field with Starobinsky’s potential. Assuming gravitinos as Lightest Supersymmetric Particles (LSSP), the non-thermal production naturally accounts for the right amount of cold dark matter. Metastability of the gravitino LSSP leads to observable effects of their decay, putting constraints on the corresponding Unstable or Decaying Dark Matters scenarios. In this model, the gravitino mass is controlled by the inflaton field and it runs with it. This implies that a continuous spectrum of superheavy gravitinos is produced during the slow-roll epoch. Implications in phenomenology, model building in Grand Unified Theory (GUT) scenarios, intersecting D-brane models and instantons in string theories are discussed.
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8

LAHANAS, A. B., N. E. MAVROMATOS et D. V. NANOPOULOS. « WMAPing THE UNIVERSE : SUPERSYMMETRY, DARK MATTER, DARK ENERGY, PROTON DECAY AND COLLIDER PHYSICS ». International Journal of Modern Physics D 12, no 09 (octobre 2003) : 1529–91. http://dx.doi.org/10.1142/s0218271803004286.

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In this review we critically discuss constraints on minimal supersymmetric models of particle physics as implied by the recent astrophysical observations of WMAP satellite experiment. Although the prospects of detecting supersymmetry increase dramatically, at least within the context of the minimal models, and 90% of the available parameter space can safely be reached by the sensitivity of future colliders, such as Tevatron, LHC and linear colliders, nevertheless we pay particular emphasis on discussing regions of the appropriate phase diagrams, which — if realized in nature — would imply that detection of supersymmetry, at least in the context of minimal models, could be out of colliders reach. We also discuss the importance of a precise determination of the radiative corrections to the muon anomalous magnetic moment, gμ-2, both theoretically and experimentally, which could lead to elimination of such "out of reach" regions in case of a confirmed discrepancy of gμ-2 from the standard model value. Finally, we briefly commend upon recent evidence, supported by observations, on a dark energy component of the Universe, of as yet unknown origin, covering 73% of its energy content. To be specific, we discuss how supergravity quintessence (relaxation) models can be made consistent with recent observations, which may lead to phenomenologically correct constrained supersymmetric models, accounting properly for this dark energy component. We also outline their unresolved problems.
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9

Shaposhnikov, Mikhail. « Superheavy dark matter and supersymmetry ». New Astronomy Reviews 49, no 2-6 (mai 2005) : 175–79. http://dx.doi.org/10.1016/j.newar.2005.03.001.

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10

Lopez, Jorge L., Kajia Yuan et D. V. Nanopoulos. « Supersymmetry breaking and dark matter ». Physics Letters B 267, no 2 (septembre 1991) : 219–26. http://dx.doi.org/10.1016/0370-2693(91)91251-p.

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11

de Wet, J. A. « Icosahedral Supersymmetry and Dark Matter ». International Frontier Science Letters 4 (avril 2015) : 11–13. http://dx.doi.org/10.18052/www.scipress.com/ifsl.4.11.

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The Icosahedral group has the Lie algebra E8 with a graph of 240 vertices and one real and 2 complex forms as well as a non-compact Split Form EVIII that is infinite-dimensional and shown to have 42 vertices that account for the squarks, sleptons and sneutrinos of Dark Matter.
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12

ELLIS, JOHN. « DECLINE AND FALL OF THE STANDARD MODEL ? » International Journal of Modern Physics A 17, no 23 (20 septembre 2002) : 3284–99. http://dx.doi.org/10.1142/s0217751x02012739.

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Motivations for physics beyond the Standard Model are reviewed, with particular emphasis on supersymmetry at the TeV scale. Constraints on the minimal supersymmetric extension of the Standard Model with universal soft supersymmetry-breaking terms (CMSSM) are discussed. These are also combined with the supersymmetric interpretation of the anomalous magnetic moment of the muon. The prospects for observing supersymmetry at accelerators are reviewed using benchmark scenarios to focus the discussion. Prospects for other experiments including the detection of cold dark matter, μ → e γ and related processes, as well as proton decay are also discussed.
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13

Lahanas, A. B. « Dark matter in CP-violating Supersymmetry ». Journal of Physics : Conference Series 171 (1 juin 2009) : 012019. http://dx.doi.org/10.1088/1742-6596/171/1/012019.

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14

Muñoz, Carlos. « Models of Supersymmetry for Dark Matter ». EPJ Web of Conferences 136 (2017) : 01002. http://dx.doi.org/10.1051/epjconf/201713601002.

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15

Provenza, Alessio, Mariano Quiros et Piero Ullio. « Dark matter in split extended supersymmetry ». Journal of Cosmology and Astroparticle Physics 2006, no 12 (6 décembre 2006) : 007. http://dx.doi.org/10.1088/1475-7516/2006/12/007.

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16

Kaplan, Jared. « Split supersymmetry and dark matter generation ». Journal of High Energy Physics 2006, no 10 (24 octobre 2006) : 065. http://dx.doi.org/10.1088/1126-6708/2006/10/065.

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17

BELYAEV, ALEXANDER. « HUNTING FOR SUPERSYMMETRY IN DARK MATTER ALLOWED REGIONS ». International Journal of Modern Physics A 21, no 02 (20 janvier 2006) : 205–35. http://dx.doi.org/10.1142/s0217751x0602845x.

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Supersymmetry remains compelling theory over 30 years in spite of lack of its discovery. It might be somewhere near the corner at the present era of TeV energy colliders and sensitive dark matter search experiments which are crucial for constraining or even discovery of the supersymmetry.
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18

Lorenz, Jeanette Miriam. « Supersymmetry and the collider dark matter picture ». Modern Physics Letters A 34, no 30 (28 septembre 2019) : 1930005. http://dx.doi.org/10.1142/s0217732319300052.

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One of the key questions in particle physics and astrophysics is the nature of dark matter, the existence of which has been confirmed in many astrophysical and cosmological observations. Besides direct and indirect detection experiments, collider searches for dark matter offer the unique possibility to not only detect dark matter particles but in the case of discovery to also study their properties by making statements about the potential underlying theory. The search program for dark matter at the ATLAS and CMS experiments at the Large Hadron Collider is comprehensive, and includes both supersymmetric dark matter candidates and other alternatives. This review presents the latest status in these searches, with special focus on supersymmetric dark matter particles.
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19

Kisslinger, Leonard S., et Steven Casper. « Dark mass creation during EWPT via Dark Energy interaction ». Modern Physics Letters A 29, no 12 (20 avril 2014) : 1450055. http://dx.doi.org/10.1142/s0217732314500552.

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We add Dark Matter–Dark Energy terms with a quintessence field interacting with a Dark Matter field to a Minimal Supersymmetry Model of the Electroweak (MSSM EW) Lagrangian previously used to calculate the magnetic field created during the Electroweak Phase Transition (EWPT). From the expectation value of the quintessence field, we estimate the Dark Matter mass for parameters used in previous work on Dark Matter–Dark Energy interactions.
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20

Nath, Pran, et R. Arnowitt. « Nonuniversal soft supersymmetry breaking and dark matter ». Physical Review D 56, no 5 (1 septembre 1997) : 2820–32. http://dx.doi.org/10.1103/physrevd.56.2820.

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21

Wells, James D. « Dark-matter in gravity-mediated supersymmetry breaking ». Nuclear Physics B - Proceedings Supplements 62, no 1-3 (mars 1998) : 235–40. http://dx.doi.org/10.1016/s0920-5632(97)00662-2.

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22

Feng, Jonathan L., Konstantin T. Matchev et Frank Wilczek. « Neutralino dark matter in focus point supersymmetry ». Physics Letters B 482, no 4 (juin 2000) : 388–99. http://dx.doi.org/10.1016/s0370-2693(00)00512-8.

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23

Lahanas, A. B., D. V. Nanopoulos et V. C. Spanos. « Dark matter, supersymmetry and the gμ − 2 ». Nuclear Physics B - Proceedings Supplements 124 (juillet 2003) : 159–65. http://dx.doi.org/10.1016/s0920-5632(03)02097-8.

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24

Kane, G. L. « Cold dark matter from constrained minimal supersymmetry ». Nuclear Physics B - Proceedings Supplements 38, no 1-3 (janvier 1995) : 300–302. http://dx.doi.org/10.1016/0920-5632(94)00759-o.

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25

Masiero, A. « Mixed dark matter and low energy supersymmetry ». Nuclear Physics B - Proceedings Supplements 35 (mai 1994) : 105–16. http://dx.doi.org/10.1016/0920-5632(94)90228-3.

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26

VERGADOS, J. D., P. QUENTIN et D. STROTTMAN. « DIRECT DETECTION OF SUPERSYMMETRIC DARK MATTER : THEORETICAL RATES FOR TRANSITIONS TO EXCITED STATES ». International Journal of Modern Physics E 14, no 05 (juillet 2005) : 751–62. http://dx.doi.org/10.1142/s0218301305003508.

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The recent WMAP data have confirmed that exotic dark matter together with the vacuum energy (cosmological constant) dominate in the flat universe. Supersymmetry provides a natural dark matter candidate, the lightest supersymmetric particle (LSP). Thus direct dark matter detection is central to particle physics and cosmology. Most of the research on this issue has hitherto focused on the detection of the recoiling nucleus. In this paper, we study transitions to the excited states, focusing on the first excited state at 50 keV of Iodine A=127. We find that the transition rate to this excited state is ≼10 percent of the transition to the ground state. So, in principle, the extra signature of the gamma ray following its de-excitation can be exploited experimentally.
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27

Peskin, Michael E. « Supersymmetric dark matter in the harsh light of the Large Hadron Collider ». Proceedings of the National Academy of Sciences 112, no 40 (20 octobre 2014) : 12256–63. http://dx.doi.org/10.1073/pnas.1308787111.

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28

Ketov, Sergei V. « Supergravity as the Dark Side of the Universe ». International Journal of Modern Physics A 35, no 02n03 (30 janvier 2020) : 2040038. http://dx.doi.org/10.1142/s0217751x20400382.

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The Dark Side of the Universe, which includes the cosmological inflation in the early Universe, the current dark energy and dark matter, can be theoretically described by supergravity, though it is non-trivial. We recall the arguments pro and contra supersymmetry and supergravity, and define the viable supergravity models describing the Dark Side of the Universe in agreement with all current observations. Our approach to inflation is based on the Starobinsky model, the dark energy is identified with the positive cosmological constant (de Sitter vacuum), and the dark matter particle is given by the lightest superparticle identified with the supermassive gravitino. The key role is played by spontaneous supersymmetry breaking.
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29

ENGEL, J., S. PITTEL et P. VOGEL. « NUCLEAR PHYSICS OF DARK MATTER DETECTION ». International Journal of Modern Physics E 01, no 01 (mars 1992) : 1–37. http://dx.doi.org/10.1142/s0218301392000023.

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We describe the elastic scattering of weakly interacting dark matter particles from nuclei, with laboratory detection in mind. We focus on the lightest neutralino (a neutral fermion predicted by supersymmetry) as a likely candidate and discuss the physics needed to calculate its elastic scattering cross section and interpret experimental results. Particular emphasis is placed on a proper description of the structure of the proposed detector nuclei. We include a brief discussion of expected count rates in some detectors.
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30

Dallal, Shawqi Al, et Walid J. Azzam. « On Supersymmetry and the Origin of Dark Matter ». Journal of Modern Physics 03, no 09 (2012) : 1131–41. http://dx.doi.org/10.4236/jmp.2012.329148.

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31

Ng, Siew-Phang, et Nobuchika Okada. « Dark matter in gauge mediation from emergent supersymmetry ». Journal of High Energy Physics 2007, no 09 (11 septembre 2007) : 040. http://dx.doi.org/10.1088/1126-6708/2007/09/040.

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32

Kazakov, D. I. « Supersymmetry on the Run : LHC and Dark Matter ». Nuclear Physics B - Proceedings Supplements 203-204 (juin 2010) : 118–54. http://dx.doi.org/10.1016/j.nuclphysbps.2010.08.007.

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33

Masiero, A., S. Profumo et P. Ullio. « Neutralino dark matter detection in split supersymmetry scenarios ». Nuclear Physics B 712, no 1-2 (avril 2005) : 86–114. http://dx.doi.org/10.1016/j.nuclphysb.2005.01.028.

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34

Flores, Marcos M., et Alexander Kusenko. « Primordial black holes as a dark matter candidate in theories with supersymmetry and inflation ». Journal of Cosmology and Astroparticle Physics 2023, no 05 (1 mai 2023) : 013. http://dx.doi.org/10.1088/1475-7516/2023/05/013.

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Abstract We show that supersymmetry and inflation, in a broad class of models, generically lead to formation of primordial black holes (PBHs) that can account for dark matter. Supersymmetry predicts a number of scalar fields that develop a coherent condensate along the flat directions of the potential at the end of inflation. The subsequent evolution of the condensate involves perturbative decay, as well as fragmentation into Q-balls, which can interact by some long-range forces mediated by the scalar fields. The attractive scalar long-range interactions between Q-balls facilitates the growth of Q-balls until their ultimate collapse to black holes. For a flat direction lifted by supersymmetry breaking at the scale Λ ∼ 100 TeV, the black hole masses are of the order of (M 3 Planck/Λ2) ∼ 1022 g, in the allowed range for dark matter. Similar potentials with a lower scale Λ (not necessarily associated with supersymmetry) can result in a population of primordial black holes with larger masses, which can explain some recently reported microlensing events.
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35

Burgess, C. P., Danielle Dineen et F. Quevedo. « Yoga Dark Energy : natural relaxation and other dark implications of a supersymmetric gravity sector ». Journal of Cosmology and Astroparticle Physics 2022, no 03 (1 mars 2022) : 064. http://dx.doi.org/10.1088/1475-7516/2022/03/064.

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Abstract We construct a class of 4D 'yoga' (naturally relaxed) models for which the gravitational response of heavy-particle vacuum energies is strongly suppressed. The models contain three ingredients: (i) a relaxation mechanism driven by a scalar field (the 'relaxon'), (ii) a very supersymmetric gravity sector coupled to the Standard Model in which supersymmetry is non-linearly realised, and (iii) an accidental approximate scale invariance expressed through the presence of a low-energy dilaton supermultiplet. All three are common in higher-dimensional and string constructions and although none suffices on its own, taken together they can dramatically suppress the net vacuum-energy density. The dilaton's vev τ determines the weak scale M W ∼ M p/√τ. We compute the potential for τ and find it can be stabilized in a local de Sitter minimum at sufficiently large field values to explain the size of the electroweak hierarchy, doing so using input parameters no larger than O(60) because the relevant part of the scalar potential arises as a rational function of lnτ. The de Sitter vacuum energy at the minimum is order c M 8 W α 1/τ 4, with a coefficient c ≪ 𝒪(M W -4). We discuss ways to achieve c ∼ 1/M p 4 as required by observations. Scale invariance implies the dilaton couples to matter like a Brans-Dicke scalar with coupling large enough to be naively ruled out by solar-system tests of gravity. Yet because it comes paired with an axion it can evade fifth-force bounds through the novel screening mechanism described in arXiv:2110.10352. Cosmological axio-dilaton evolution predicts a natural quintessence model for Dark Energy, whose evolution might realize recent proposals to resolve the Hubble tension, and whose axion contributes to Dark Matter. We summarize inflationary implications and some remaining challenges, including the unusual supersymmetry breaking regime used and the potential for UV completions of our approach.
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Yoshimatsu, Nobuki. « Implications of heavy neutralino dark matter : The underlying structure in the hidden sector ». International Journal of Modern Physics A 32, no 04 (9 février 2017) : 1750013. http://dx.doi.org/10.1142/s0217751x17500130.

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The possibility of heavy neutralino dark matter (DM) in the gravity-mediation mechanism is explored. The appearance of the heavy lightest supersymmetric particle is seemingly suggested by Large Hadron Collider runs, which have not provided evidence of superparticles around the TeV region. On the basis of the so-called WIMPZILLA scenario, it is understood that the nonthermally produced DM has the larger mass than the reheating temperature. Hence, the expected DM mass should be more than 109 GeV so that thermal leptogenesis successfully occurs. In this paper, we first examine the generation of the Higgsino mass parameter [Formula: see text] in the context of gravity mediation, postulating that the resolution of the strong CP problem should be the criterion for arriving at a valid hypothesis for heavy neutralino DM. Accordingly, we address how the Peccei–Quinn (PQ) symmetry could influence dynamical supersymmetry breaking (DSB) models. It is found that as long as [Formula: see text] (the SUSY-breaking scale) approximately coincides with [Formula: see text] (the PQ-breaking scale), no DSB models can naturally account for the existence of the heavy neutralino DM, based upon the supersymmetric Dine–Fischler–Srednicki–Zhitinitski (DFSZ)-like mechanism. Thus, we attempt to construct a new model wherein hierarchical SUSY breakings occur. For this purpose, we propose gauge coupling unification in the hidden-sector dynamics at some high-energy scale, and we show that such a class of models can achieve [Formula: see text] through renormalization flow. As a consequence, the nonthermal neutralino, practically the wino-like one in our model, is shown to be a rather natural and viable DM candidate. Moreover, we argue that on the basis of Kac–Moody algebra, multiple breakdowns of supersymmetry may entail unified gauge dynamics. We also present a possible unified model. Finally, the heavy wino-like neutralino may be a DM candidate that will favor future direct DM detection experiments, mainly because its scattering on nuclei well conserves isospin symmetry.
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Throm, Maxwell, Reagan Thornberry, John Killough, Brian Sun, Gentill Abdulla et Roland E. Allen. « Two natural scenarios for dark matter particles coexisting with supersymmetry ». Modern Physics Letters A 34, no 02 (20 janvier 2019) : 1930001. http://dx.doi.org/10.1142/s0217732319300015.

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We describe two natural scenarios in which both dark matter, weakly interacting massive particles (WIMPs) and a variety of supersymmetric partners should be discovered in the foreseeable future. In the first scenario, the WIMPs are neutralinos, but they are only one component of the dark matter, which is dominantly composed of other relic particles such as axions. (This is the multicomponent model of Baer, Barger, Sengupta and Tata.) In the second scenario, the WIMPs result from an extended Higgs sector and may be the only dark matter component. In either scenario, both the dark matter WIMP and a plethora of other neutral and charged particles await discovery at many experimental facilities. The new particles in the second scenario have far weaker cross-sections for direct and indirect detection via their gauge interactions, which are either momentum-dependent or second-order. However, as we point out here, they should have much stronger interactions via the Higgs. We estimate that their interactions with fermions will then be comparable to (although not equal to) those of neutralinos with a corresponding Higgs interaction. It follows that these newly proposed dark matter particles should be within the reach of emerging and proposed facilities for direct, indirect and collider-based detection.
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38

Kawasaki, M., Naoshi Sugiyama et T. Yanagida. « Gravitino Warm Dark Matter Motivated by Gauge-Mediated Supersymmetry Breaking Theories ». Modern Physics Letters A 12, no 17 (7 juin 1997) : 1275–82. http://dx.doi.org/10.1142/s021773239700128x.

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Gauge-mediated supersymmetry breaking models suggest the presence of the light gravitino with mass ~ 1 keV which can be warm dark matter in our universe. We consider large scale structure of the universe in the warm dark matter model and find that the power spectrum of the gravitino dark matter is almost the same as that of a cold dark matter at scales larger than about 1 Mpc. We also study the Ly α absorption systems which are presumed to be galaxies at high redshifts and show that the baryon density in the damped Ly α absorption systems predicted by the gravitino dark matter model is quite consistent with the present observation.
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39

Akula, Sujeet, Mengxi Liu, Pran Nath et Gregory Peim. « Naturalness, supersymmetry and implications for LHC and dark matter ». Physics Letters B 709, no 3 (mars 2012) : 192–99. http://dx.doi.org/10.1016/j.physletb.2012.01.077.

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40

Fornengo, N. « WIMP dark matter and supersymmetry searches with neutrino telescopes ». Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment 626-627 (janvier 2011) : S36—S39. http://dx.doi.org/10.1016/j.nima.2010.05.013.

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41

Dimopoulos, S., G. F. Giudice et A. Pomarol. « Dark matter in theories of gauge-mediated supersymmetry breaking ». Physics Letters B 389, no 1 (décembre 1996) : 37–42. http://dx.doi.org/10.1016/s0370-2693(96)01241-5.

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Gondolo, Paolo, Graciela Gelmini et Esteban Roulet. « Cornering the supersymmetry preferred dark matter candidate : The neutralino ». Nuclear Physics B - Proceedings Supplements 14, no 2 (avril 1990) : 251–58. http://dx.doi.org/10.1016/0920-5632(90)90386-9.

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Lemoine, Martin, Gilbert Moultaka et Karsten Jedamzik. « Natural gravitino dark matter in gauge mediated supersymmetry breaking ». Physics Letters B 645, no 2-3 (février 2007) : 222–27. http://dx.doi.org/10.1016/j.physletb.2006.12.025.

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CERDEÑO, DAVID G. « DETECTION AND IDENTIFICATION OF DARK MATTER ». International Journal of Modern Physics : Conference Series 01 (janvier 2011) : 98–107. http://dx.doi.org/10.1142/s2010194511000134.

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Dark matter is an abundant component of our Universe and its detection and identification constitutes one of the most challenging goals in modern Physics. Particle Physics provides well motivated candidates for dark matter, among which a generic weakly-interacting massive particle (WIMP) stands out for its simplicity and the fact that WIMP candidates can be found in many theories proposing new physics at the TeV scale, such as Supersymmetry, models with Universal Extra Dimensions and Little Higgs Theories. I will review the properties of some of the main WIMP candidates and their detectability (with special emphasis on direct detection experiments). I will also address the strategies that can be used to discriminate among them in the case of a future detection.
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Kowalska, Kamila, et Enrico Maria Sessolo. « The Discreet Charm of Higgsino Dark Matter : A Pocket Review ». Advances in High Energy Physics 2018 (11 juillet 2018) : 1–15. http://dx.doi.org/10.1155/2018/6828560.

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We give a brief review of the current constraints and prospects for detection of higgsino dark matter in low-scale supersymmetry. In the first part we argue, after performing a survey of all potential dark matter particles in the MSSM, that the (nearly) pure higgsino is the only candidate emerging virtually unscathed from the wealth of observational data of recent years. In doing so by virtue of its gauge quantum numbers and electroweak symmetry breaking only, it maintains at the same time a relatively high degree of model-independence. In the second part we properly review the prospects for detection of a higgsino-like neutralino in direct underground dark matter searches, collider searches, and indirect astrophysical signals. We provide estimates for the typical scale of the superpartners and fine tuning in the context of traditional scenarios where the breaking of supersymmetry is mediated at about the scale of Grand Unification and where strong expectations for a timely detection of higgsinos in underground detectors are closely related to the measured 125 GeV mass of the Higgs boson at the LHC.
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Ellis, John. « Searching for supersymmetry and its avatars ». Philosophical Transactions of the Royal Society A : Mathematical, Physical and Engineering Sciences 377, no 2161 (11 novembre 2019) : 20190069. http://dx.doi.org/10.1098/rsta.2019.0069.

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Why continue looking for supersymmetry? Over and above the aesthetic and theoretical motivations from string theory, there are several longstanding pheno- menological motivations for TeV-scale super- symmetry, such as the electroweak scale, and the lightest supersymmetric particle as cold dark matter. Run 1 of the Large Hadron Collider (LHC) has actually provided three extra motivations, namely the stabilization of the electroweak vacuum, and successful predictions for the Higgs mass and couplings. How to look for it? There are several examples of emergent supersymmetry, the most recent being on the surfaces of topological insulators, and some sort of effective supersymmetry could be useful for boosting the power of laser arrays. At the LHC, attention is moving towards signatures that had previously been neglected, such as long-lived charged particles—which might be an opportunity for the MoEDAL experiment. This article is part of a discussion meeting issue ‘Topological avatars of new physics’.
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Zhu, Bin, Ran Ding et Tianjun Li. « Hybrid anomaly and gravity mediation for electroweak supersymmetry ». International Journal of Modern Physics A 33, no 07 (8 mars 2018) : 1850035. http://dx.doi.org/10.1142/s0217751x18500355.

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In this paper, we propose a hybrid mediation and hybrid supersymmetry breaking. In particular, the RG-invariant anomaly mediation is considered. Together with additional gravity mediation, the slepton tachyon problem of anomaly mediation is solved automatically. The special properties are that all color sparticles masses fall into several TeV regions due to the large [Formula: see text] and [Formula: see text] which are well beyond the scope of current LHC Run II limits. Unlike the gauge mediation, the dark matter candidate is still the lightest neutralino and the correct dark matter relic density can be realized within the framework of mixed axion-Wino dark matter. Due to the existence of multi-component axion-Wino dark matter, the direct detection cross-section is suppressed to evade the tightest LUX, PandaX bound.
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Wang, Fei, Wenyu Wang, Jinmin Yang, Yang Zhang et Bin Zhu. « Low Energy Supersymmetry Confronted with Current Experiments : An Overview ». Universe 8, no 3 (12 mars 2022) : 178. http://dx.doi.org/10.3390/universe8030178.

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This study provides a brief overview of low energy supersymmetry (SUSY) in light of current experimental constraints, such as collider searches, dark matter searches, and muon g−2 measurements. In addition, we survey a variety of low energy supersymmetric models: the phenomenological minimal supersymmetric model (MSSM); the supersymmetric models with cut-off-scale boundary conditions, i.e., the minimal supergravity (mSUGRA) or the constrained MSSM (CMSSM), the gauge mediation of SUSY breaking (GMSB), and the anomaly mediation of SUSY breaking (AMSB), as well as their extensions. The conclusion is that the low energy SUSY can survive all current experimental constraints and remains compelling, albeit suffering from a slight fine-tuning problem. The advanced models such as mSUGRA, GMSB, and AMSB need to be extended if the muon g−2 anomaly comes from new physics.
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WHITE, M. J. « SUSY AND DARK MATTER CONSTRAINTS FROM THE LHC ». International Journal of Modern Physics A 22, no 31 (20 décembre 2007) : 5771–84. http://dx.doi.org/10.1142/s0217751x07039006.

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The LHC will have much to say about the mysteries of dark matter, and this talk reviews this potential within the context of supersymmetry (SUSY). The SUSY search reach of CMS and ATLAS is presented, followed by a brief introduction to the methods of SUSY parameter measurement. A representative ATLAS study is then used to explain how the LHC can be used to obtain a measurement of the relic density of a neutralino WIMP candidate. Finally, the prospect of success is considered by looking at different points in the MSSM parameter space.
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LEE, HYE-SUNG. « R-PARITY VIOLATING U(1)′-EXTENDED SUPERSYMMETRIC STANDARD MODEL ». Modern Physics Letters A 23, no 39 (21 décembre 2008) : 3271–83. http://dx.doi.org/10.1142/s0217732308029939.

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Supersymmetry is one of the best motivated new physics scenarios. To build a realistic supersymmetric standard model, however, a companion symmetry is necessary to address various issues. While R-parity is a popular candidate that can address the proton and dark matter issues simultaneously, it is not the only option for such a property. We review how a TeV scale U(1)′ gauge symmetry can replace the R-parity. Discrete symmetries of the U(1)′ can make the model still viable and attractive with distinguishable phenomenology. For instance, with a residual discrete symmetry of the U(1)′, Z6 = B3 × U2, the proton can be protected by the baryon triality (B3) and a hidden sector dark matter candidate can be protected by the U-parity (U2).
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