First Results of the Phase II SIMPLE Dark Matter Search

Felizardo, M.; Morlat, T.; Fernandes, A.C.; Girard, T.A.; Marques, J.G.; Ramos, A.R.; Auguste, M.; Boyer, Daniel; Cavaillou, A.; Sudre, C.; Poupeney, J.; Payne, Rosara F.; Miley, Harry S.; Puibasset, Joël

doi:10.1103/physrevlett.105.211301

Cited by 71 publications

(54 citation statements)

References 23 publications

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“…• SIMPLE-The Superheated Instrument for Massive ParticLe Experiments (SIMPLE) (Felizardo et al, 2010) operates in the Low Noise Underground Laboratory in southern France. It has sensitivity to spin-dependent WIMP-proton interactions through scattering on 1 9F, 3 5Cl, 3 7Cl, and 1 3C.…”

Section: Direct Detectionmentioning

confidence: 99%

Galactic searches for dark matter

2013

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For nearly a century, more mass has been measured in galaxies than is contained in the luminous stars and gas. Through continual advances in observations and theory, it has become clear that the dark matter in galaxies is not comprised of known astronomical objects or baryonic matter, and that identification of it is certain to reveal a profound connection between astrophysics, cosmology, and fundamental physics. The best explanation for dark matter is that it is in the form of a yet undiscovered particle of nature, with experiments now gaining sensitivity to the most well-motivated particle dark matter candidates. In this article, I review measurements of dark matter in the Milky Way and its satellite galaxies and the status of Galactic searches for particle dark matter using a combination of terrestrial and space-based astroparticle detectors, and large scale astronomical surveys. I review the limits on the dark matter annihilation and scattering cross sections that can be extracted from both astroparticle experiments and astronomical observations, and explore the theoretical implications of these limits. I discuss methods to measure the properties of particle dark matter using future experiments, and conclude by highlighting the exciting potential for dark matter searches during the next decade, and beyond.

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Section: Direct Detectionmentioning

confidence: 99%

Galactic searches for dark matter

2013

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“…For the spin dependent case, since the Sun is dominated by protons, we focus on the direct detection constraints for DM-proton elastic scattering. The constraints dominantly come from PICASSO, SIMPLE and COUPP [47][48][49]. If DM mass is smaller than 4 GeV, the constraints are not strong.…”

Section: Jhep02(2014)077mentioning

confidence: 99%

“…The red curve is from PICCASO, orange is from SIMPLE, yellow is from COUPP, Blue is from CDMSLite and Green is from LUX. [43,45,[47][48][49] momentum can be calculated easily by assuming that the initial particles are approximately at rest,…”

Section: Anti-dm Flux From the Sunmentioning

confidence: 99%

Dark matter induced nucleon decay: model and signatures

Huang

Zhao

2014

J. High Energ. Phys.

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If dark matter (DM) carries anti-baryon number, a DM particle may annihilate with a nucleon by flipping to anti-DM. Inspired by Hylogenesis models, we introduce a single component DM model where DM is asymmetric and carries B and L as -1/2. It can annihilate with a nucleon to an anti-lepton and an anti-DM at leading order or with an additional meson at sub-leading order. Such signals may be observed in proton decay experiments. If DM is captured in the Sun, the DM induced nucleon decay can generate a large flux of anti-neutrinos, which could be observed in neutrino experiments. Furthermore, the anti-DM particle in the final state obtains a relatively large momentum (few hundred MeV), and escapes the Sun. These fast-moving anti-DM particles could also induce interesting signals in various underground experiments.

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“…(b) Expected and observed lower limits on M D at 95% C.L., as a function of extra dimensions n, with K factors (and without, i.e., K ¼ 1). [29,[35][36][37][38][39][40][41][42].…”

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confidence: 99%

Search for Dark Matter and Large Extra Dimensions inppCollisions Yielding a Photon and Missing Transverse Energy

Chatrchyan¹,

Khachatryan²,

Sirunyan³

et al. 2012

Phys. Rev. Lett.

131

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Results are presented from a search for new physics in the final state containing a photon () and missing transverse energy (6 E T ). The data correspond to an integrated luminosity of 5:0 fb À1 collected in pp collisions at ffiffi ffi s p ¼ 7 TeV by the CMS experiment. The observed event yield agrees with standardmodel expectations for the þ 6 E T events. Using models for the production of dark-matter particles (), we set 90% confidence level (C.L.) upper limits of 13.6-15.4 fb on production in the þ 6 E T state. These provide the most sensitive upper limits for spin-dependent -nucleon scattering for masses (M ) between 1 and 100 GeV. For spin-independent contributions, the present limits are extended to M < 3:5 GeV. For models with 3-6 large extra dimensions, our data exclude extra-dimensional Planck scales between 1.64 and 1.73 TeV at 95% C.L. DOI: 10.1103/PhysRevLett.108.261803 PACS numbers: 13.85.Rm, 11.25.Wx, 14.70.Kv, 14.80.Nb Final states in pp collisions at the Large Hadron Collider (LHC), containing a photon () of large transverse momentum (p T ) and missing transverse energy (6 E T ), are used to investigate two proposals of physics beyond the standard model (SM). One involves a model for dark matter (DM), which is now accepted as the dominant nonbaryonic contribution to the matter density of the Universe [1]. Direct searches for a DM candidate () rely on detection through elastic -nucleon scattering. Indirect searches consist of observation of photons or neutrinos produced in " annihilations in astrophysical sources. At the LHC, DM can be produced in the reaction q " q ! " , where the photon is radiated by one of the incoming quarks. The final state is a high-p T photon and 6 E T . Recent theoretical work [2][3][4][5] casts this process in terms of a massive mediator in the s channel that couples to a " pair of Dirac particles. This process is contracted into an effective theory with a contact interaction scale Ã, given byM , where M M is the mediator mass and g and g q are its couplings to and quarks, respectively. The model provides a way to connect the t-channel -nucleon elastic scattering to the s-channel pair-production mechanism. The effective s-channel operator can be chosen to represent either a vector or axialvector, spin-independent or spin-dependent interaction, respectively.The þ 6 E T final state also has sensitivity to models of extra spatial dimensions. The Arkani-Hamed, Dimopoulos, and Dvali model (ADD) [6], in particular, provides a possible solution to the hierarchy problem, viz., the disparity between two fundamental scales of nature: the electroweak unification scale (M EW % 100 GeV) and the Planck scale (M Pl % 10 19 GeV). In this framework, space-time is postulated to have n extra compact spatial dimensions with a characteristic scale R, leading to a modified Planck scale, M D , given by M 2 Pl % M nþ2 D R n . Assuming M D is of the same order as M EW , the observed large value of M Pl can be interpreted as being a consequence of the ''large'' size of R (relative to the Plan...

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First Results of the Phase II SIMPLE Dark Matter Search

Cited by 71 publications

References 23 publications

Galactic searches for dark matter

Galactic searches for dark matter

Dark matter induced nucleon decay: model and signatures

Search for Dark Matter and Large Extra Dimensions inppCollisions Yielding a Photon and Missing Transverse Energy

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