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5. Dark Matter Spin-Dependent Limits for WIMP Interactions on 19-F by PICASSO

Author

Archambault, S., Aubin, F., Auger, M., Behnke, E., Beltran, B., Clark, K., Dai, X., Davour, A., Farine, J., Faust, R., Genest, M. -H., Giroux, G., Gornea, R., Krauss, C., Kumaratunga, S., Lawson, I., Leroy, C., Lessard, L., Levy, C., Levine, I., MacDonald, R., Martin, J. -P., Nadeau, P., Noble, A., Piro, M. -C., Pospisil, S., Shepherd, T., Starinski, N., Stekl, I., Storey, C., Wichoski, U., and Zacek, V.

Subjects
High Energy Physics - Experiment
Abstract

The PICASSO experiment at SNOLAB reports new results for spin-dependent WIMP interactions on $^{19}$F using the superheated droplet technique. A new generation of detectors and new features which enable background discrimination via the rejection of non-particle induced events are described. First results are presented for a subset of two detectors with target masses of $^{19}$F of 65 g and 69 g respectively and a total exposure of 13.75 $\pm$ 0.48 kgd. No dark matter signal was found and for WIMP masses around 24 GeV/c$^2$ new limits have been obtained on the spin-dependent cross section on $^{19}$F of $\sigma_F$ = 13.9 pb (90% C.L.) which can be converted into cross section limits on protons and neutrons of $\sigma_p$ = 0.16 pb and $\sigma_n$ = 2.60 pb respectively (90% C.L). The obtained limits on protons restrict recent interpretations of the DAMA/LIBRA annual modulations in terms of spin-dependent interactions., Comment: Revised version, accepted for publication in Phys. Lett. B, 20 pages, 7 figures

Published
2009
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6. Discrimination of nuclear recoils from alpha particles with superheated liquids

Author

Aubin, F., Auger, M., Behnke, E., Beltran, B., Clark, K., Dai, X., Davour, A., Genest, M. -H., Giroux, G., Gornea, R., Faust, R., Krauss, C. B., Leroy, C., Lessard, L., Levine, I., Levy, C., Martin, J. -P., Morlat, T., Noble, A. J., Nadeau, P., Piro, M. -C., Pospisil, S., Shepherd, T., Sodomka, J., Starinski, N., Stekl, I., Storey, C., Wichoski, U., and Zacek, V.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The PICASSO collaboration observed for the first time a significant difference between the acoustic signals induced by neutrons and alpha particles in a detector based on superheated liquids. This new discovery offers the possibility of improved background suppression and could be especially useful for dark matter experiments. This new effect may be attributed to the formation of multiple bubbles on alpha tracks, compared to single nucleations created by neutron induced recoils., Comment: 7 pages, 4 figures. accepted for publication in New Journal of Physics

Published
2008
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8. A Surface-Gated InSb Quantum Well Single Electron Transistor

Author

Orr, J. M. S., Buckle, P. D., Fearn, M., Storey, C. J., Buckle, L., and Ashley, T.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Single electron charging effects in a surface-gated InSb/AlInSb QW structure are reported. This material, due to its large g-factor and light effective mass, offers considerable advantages over more commonly used materials, such as GaAs, for quantum information processing devices. However, differences in material and device technology result in significant processing challenges. Simple Coulomb blockade and quantised confinement models are considered to explain the observation of conductance oscillations in these structures. The charging energy is found to be comparable with the energy spectrum for single particle states.

Published
2007
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14. Insuffisance corticotrope après une corticothérapie prolongée : définition de seuils de cortisol permettant d’éviter le test au Synacthène faible dose en pédiatrie

Author

Laulhé, M., primary, Dumaine, C., additional, Chevenne, D., additional, Leye, F., additional, Faye, A., additional, Dozières, B., additional, Strullu, M., additional, Viala, J., additional, Hogan, J., additional, Houdouin, V., additional, Léger, J., additional, Simon, D., additional, Carel, J.C., additional, Storey, C., additional, Guilmin-Crépon, S., additional, and Martinerie, L., additional

Published
2022
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29. Notes and Queries

Author

Storey, C. A., Bailey, T. Grahame, and Barthold, W.

Published
1923

38. Impact melt sheet zircons and their implications for the Hadean crust

Author

Darling, J., Storey, C., and Hawkesworth, C.

Subjects
Australia -- Natural history, Magmatic differentiation -- Research, Cratons -- Structure, Zircon -- Properties, Earth sciences
Abstract

Impacts may have been important mechanisms of crustal redistribution and differentiation, particularly during intense postaccretionary bombardment between 4.5 Ga and 3.9 Ga ago. Evidence of crustal processes during this period is largely provided by detrital zircons from the Yilgarn craton, Australia. Trace element compositions, crystallization temperatures, and inclusion populations of these ancient zircons have been taken as evidence for predominantly granitic source magmas, implying widespread felsic continental crust on the early Earth. However, there is little knowledge of zircons formed in impact melt sheets, a potential source for the Hadean zircons. Here we present Ti thermometry, trace elements, and inclusion populations of zircons from the 1.85 Ga Sudbury impact melt sheet (Ontario, Canada). Our results demonstrate that large variations in zircon crystallization temperature and composition will be an inevitable consequence of the evolution of such magmatic systems. We also show that zircons in mafic rocks crystallize in residual liquids of granitic composition, producing inclusion assemblages that are remarkably similar to those reported for the ancient Yilgarn grains. Thus, we conclude that the trace element compositions and inclusion populations of the Hadean zircons are consistent with crystallization from more mafic melts than previously recognized, although high crystallization temperature distributions of Sudbury zircons indicate that impact melt sheets were not a dominant source for the grains older than 3.9 Ga.

Published
2009

40. Status and Results of the PICASSO Experiment

Author

Wichoski, U., Aubin, F., Auger, M., Azuelos, G., Behnke, E., Clark, K., Dai, X., Feighery, W., Genest, M.-H., Giroux, G., Gornea, R., Kanagalingam, S., Krauss, C.B., Leroy, C., Lessard, L., Levine, I., Martin, J.-P., Noble, A.J., Noulty, R., Piro, M.-C., Pospisil, S., Sodomka, J., Starinsky, N., Stekl, I., Storey, C., Van der Werf, N., and Zacek, V.

Published
2007
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45. Hot-carrier stressing of NPN polysilicon emitter bipolar transistors incorporating fluorine

Author

Sheng, S.R., McKinnon, W.R., McAlister, S.P., Storey, C., Hamel, J.S., and Ashburn, P.

Subjects
Reliability (Engineering) -- Research, Bipolar transistors -- Research, Fluorination -- Research, Business, Electronics, Electronics and electrical industries
Abstract

Effects of fluorine on hot-carrier induced degradation in polysilicon NPN bipolar transistors are examined and reported.

Published
2003

46. Caractérisation des ganglioneuromes de la surrénale : une étude rétrospective multicentrique de 106 cas issus du réseau COMETE

Author

Deflorenne, E., primary, Peuchmaur, M., additional, Vezzosi, D., additional, Ajzenberg, C., additional, Brunaud, L., additional, Chevalier, N., additional, Christin-Maitre, S., additional, Decoudier, B., additional, Driessens, N., additional, Drui, D., additional, Gilly, O., additional, Goudet, P., additional, Illouz, F., additional, Jublanc, C., additional, Lefebvre, H., additional, Lopez, A.G., additional, Lussey-Lepoutre, C., additional, Morini, A., additional, Pierre, P., additional, Raffin-Sanson, M.L., additional, Raingeard, I., additional, Storey, C., additional, Tabarin, A., additional, Vantyghem, M.C., additional, Vidal-Petiot, E., additional, Baudin, E., additional, Bertherat, J., additional, and Amar, L., additional

Published
2020
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48. Apport de l’imagerie pour le dépistage et suivi des apparentés asymptomatiques porteurs d’une mutation SDHx : une étude multicentrique française

Author

Saie, C., primary, Buffet, A., additional, Abeillon, J., additional, Drui, D., additional, Leboulleux, S., additional, Bertherat, J., additional, Zenaty, D., additional, Storey, C., additional, Borson-Chazot, F., additional, Burnichon, N., additional, Vincent, M., additional, Favier, J., additional, Baudin, E., additional, Giraud, S., additional, Gimenez-Roqueplo, A.P., additional, Amar, L., additional, and Lussey-Lepoutre, C., additional

Published
2020
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