Limits on Spin-Dependent WIMP-Nucleon Cross Section Obtained from the Complete LUX Exposure

Akerib, D. S.; Alsum, S.; Araujo, H.; Bai, X.; Bailey, Adam; Balajthy, J.; Beltrame, P.; Bernard, E. P.; Bernstein, Adam; Biesiadzinski, T. P.; Boulton, E. M.; Brás, P.; Byram, D.; Cahn, S. B.; Carmona-Benitez, M. C.; Chan, C.; Chiller, A. A.; Chiller, C.; Currie, A.; Cutter, J. E.; Davison, T. J. R.; Dobi, A.; Dobson, J.; Druszkiewicz, E.; Edwards, B. N.; Faham, C.H.; Fallon, S. R.; Fiorucci, S.; Gaitskell, R. J.; Gehman, V. M.; Ghag, C.; Gilchriese, M.; Hall, C.; Hanhardt, M.; Haselschwardt, S. J.; Hertel, S. A.; Hogan, D. P.; Horn, M.; Huang, Di; Ignarra, C. M.; Jacobsen, R. G.; Ji, W.; Kamdin, K.; Kazkaz, K.; Khaitan, D.; Knoche, R.; Larsen, N. A.; Lee, C.; Lenardo, B. G.; Lesko, K. T.; Lindote, A.; Lopes, M. I.; Manalaysay, A.; Mannino, R. L.; Marzioni, M. F.; McKinsey, D. N.; Mei, Dongming; Möck, J.; Moongweluwan, M.; Morad, J. A.; Murphy, A. St. J.; Nehrkorn, C.; Nelson, H. N.; Neves, F.; O’Sullivan, K.; Oliver-Mallory, K. C.; Palladino, K. J.; Pease, E. K.; Reichhart, L.; Rhyne, C.; Shaw, S.; Shutt, T.; Silva, C.; Solmaz, M.; Solovov, V.; Sørensen, P.; Stephenson, S.; Sumner, T. J.; Szydagis, M.; Taylor, D. J.; Taylor, WC; Tennyson, B. P.; Terman, P. A.; Tiedt, D. R.; To, W. H.; Tripathi, M.; Tvrznikova, L.; Uvarov, S.; Velan, V.; Verbus, J.R.; Webb, R.; White, James T.; Whitis, T. J.; Witherell, M. S.; Wolfs, F. L. H.; Xu, J.; Yazdani, K.; Young, S. K.; Zhang, C.

doi:10.1103/physrevlett.118.251302

Cited by 246 publications

(271 citation statements)

References 39 publications

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“…When the coupling to neutrons dominates, the most stringent limits are once again those from the LUX experiment [36], which provides a bound R < 8 × 10 −5 events kg −1 day −1 on the event rate, as discussed above. By contrast, when the coupling to protons dominates, the most stringent limits are those from the PICO-60 experiment [37], which provides a bound R < 1.7 × 10 −3 events kg −1 day −1 .…”

Section: Direct-detection Constraintsmentioning

confidence: 97%

Off-diagonal dark-matter phenomenology: Exploring enhanced complementarity relations in nonminimal dark sectors

2017

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In most multicomponent dark-matter scenarios, two classes of processes generically contribute to event rates at experiments capable of probing the nature of the dark sector. The first class consists of "diagonal" processes involving only a single species of dark-matter particle-processes analogous to those which arise in single-component dark-matter scenarios. By contrast, the second class consists of "off-diagonal" processes involving dark-matter particles of different species. Such processes include inelastic scattering at direct-detection experiments, asymmetric production at colliders, dark-matter co-annihilation, and certain kinds of dark-matter decay. In typical multicomponent scenarios, the contributions from diagonal processes dominate over those from off-diagonal processes. Unfortunately, this tends to mask those features which are most sensitive to the multicomponent nature of the dark sector. In this paper, by contrast, we point out that there exist natural, multicomponent dark-sector scenarios in which the off-diagonal contributions actually dominate over the diagonal. This then gives rise to a new, enhanced picture of dark-matter complementarity. In this paper, we introduce a scenario in which this situation arises and examine the enhanced picture of dark-matter complementarity which emerges.

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Section: Direct-detection Constraintsmentioning

confidence: 97%

Off-diagonal dark-matter phenomenology: Exploring enhanced complementarity relations in nonminimal dark sectors

2017

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“…[389,390]. Results from direct-detection experiments XENON100 [391], LUX [392], and PICO [393,394] are also shown for comparison. For WIMP masses up to 300 GeV, limits on the scattering cross section of the order of 10 −42 cm 2 can be inferred, roughly 3 orders of magnitude stronger than direct detection one, and extend to lower DM mass (below 10 GeV).…”

Section: Signal Channelmentioning

confidence: 99%

“…Unlike in the mχ-mA parameter plane, the limits are shown at 90% CL. The results from this analysis, excluding the region to the left of the contour, are compared with limits from the XENON100 [391], LUX [392], and PICO [393,394] experiments. The comparison is model-dependent and solely valid in the context of this model, assuming minimal mediator width and the coupling values gq = 1/4 and gχ = 1.…”

Section: Theoretical Toolsmentioning

confidence: 99%

Aspects of WIMP Dark Matter Searches at Colliders and Other Probes

Morgante

2017

Springer Theses

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UNIVERSITÉ DE GENÈVE FACULTÉ DES SCIENCES AbstractThe problem of Dark Matter is one of the most longstanding problems in cosmology and particle physics, and surely one of the most interesting. A number of astrophysical and cosmological evidences point to the existence of a large amount of non luminous matter, whose nature is still a mistery. The simplest possible solution to this puzzle is in terms of new neutral and stable particles with weak-scale mass and couplings (named WIMPs for weakly interacting massive particles), which would not only reproduce naturally the observed cosmological Dark Matter abundance, but also fit very well in many well-motivated theories for physics beyond the Standard Model. In this thesis I discuss the present status of WIMP searches and of our understanding of the theoretical issues involved in them, with a particular emphasis to searches at the Large Hadron Collider.iii iv ABSTRACT List of publicationsPapers that appear in this thesis [1] ResuméLe problème de la matière noire (DM, de l'anglais Dark Matter) peut être résumé comme suit : plusieurs anomalies ont été observées, depuis 1933, à partir des échelles galactiques jusqu'à celles des plus large structures, qu'on ne peut pas expliquer que par l'existence de quelques éléments pas lumineux qui constituent plus de 80% de la masse totale des galaxies et des amas de galaxies, ou sinon par quelques modifications supplé-mentaires de la Relativité Générale. La quelle des deux solutions est correcte est encore matière à débat, même si une modification du contenu de la matière est généralement considéré plus probable. De plus, c'est un résultat bien établi le fait que les objets astrophysiques exotiques peuvent constituer seulement une petite partie du total de la Matière noire contenu dans l'Univers, avec seulement quelques petites fenêtres laissées ouvertes par l'observation astrophysique. à cause de ça, la solution la plus plausible du puzzle semble être dans la forme des particules subatomiques.Notre connaissance actuelle de la physique des particules est fondée sur l'ainsi nommé Modèle Standard (SM). La seule candidate de DM dans le Modèle Standard est le neutrino, mais, comme on verra dans le chapitre 1.3, les neutrinos ne peuvent pas constituer toute la DM, et l'introduction des nouvelles particules est necessaire. Deux faits très intéressants se présentent à ce moment. D'un côté, un simple calcul de l'abondance de la DM dans le modèle du Big Bang chaud indique qu'une particule avec une masse et une constante de couplage typiques des interactions faibles aurait la juste abondance aujourd'hui. Cette coïncidence est appelée le "WIMP miracle", pour weakly interacting massive particle. De l'autre côté, le SM souffre l'ainsi nommé "problème de la hiérarchie de l'échelle électrofaible", ça veut dire que l'échelle électrofaible est instable contre les corrections quantiques et, en supposant que le SM n'est que la limite de basse energie d'une physique plus fondamentale, peut-être à l'échelle de Planck, un choix ajusté finement...

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“…In xenon target experiments, for instance, the spin is carried by neutrons in neutron-odd isotopes ( 129 Xe, 131 Xe). The best SD wimp-neutron cross section limit is currently given by the LUX experiment [91]. On the other hand, to put constraints on the SD wimp-proton cross section, it is necessary to use nuclei with an odd number of protons.…”

Section: Direct Detectionmentioning

confidence: 99%

Robustness of dark matter constraints and interplay with collider searches for New Physics

Arbey

Robbins

Mahmoudi

et al. 2017

J. High Energ. Phys.

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Abstract:We study the implications of dark matter searches, together with collider constraints, on the phenomenological MSSM with neutralino dark matter and focus on the consequences of the related uncertainties in some detail. We consider, inter alia, the latest results from AMS-02, Fermi-LAT and XENON1T. In particular, we examine the impact of the choice of the dark matter halo profile, as well as the propagation model for cosmic rays, for dark matter indirect detection and show that the constraints on the MSSM differ by one to two orders of magnitude depending on the astrophysical hypotheses. On the other hand, our limited knowledge of the local relic density in the vicinity of the Earth and the velocity of Earth in the dark matter halo leads to a factor 3 in the exclusion limits obtained by direct detection experiments. We identified the astrophysical models leading to the most conservative and the most stringent constraints and for each case studied the complementarities with the latest LHC measurements and limits from Higgs, SUSY and monojet searches. We show that combining all data from dark matter searches and colliders, a large fraction of our supersymmetric sample could be probed. Whereas the direct detection constraints are rather robust under the astrophysical assumptions, the uncertainties related to indirect detection can have an important impact on the number of the excluded points.

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Limits on Spin-Dependent WIMP-Nucleon Cross Section Obtained from the Complete LUX Exposure

Cited by 246 publications

References 39 publications

Off-diagonal dark-matter phenomenology: Exploring enhanced complementarity relations in nonminimal dark sectors

Off-diagonal dark-matter phenomenology: Exploring enhanced complementarity relations in nonminimal dark sectors

Aspects of WIMP Dark Matter Searches at Colliders and Other Probes

Robustness of dark matter constraints and interplay with collider searches for New Physics

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