Publications

Publications by CAP

2008

Limits on spin-dependent WIMP-nucleon cross sections from the XENON10 experiment

Authors
Angle, J; Aprile, E; Arneodo, F; Baudis, L; Bernstein, A; Bolozdynya, A; Coelho, LCC; Dahl, CE; DeViveiros, L; Ferella, AD; Fernandes, LMP; Fiorucci, S; Gaitskell, RJ; Giboni, KL; Gomez, R; Hasty, R; Kastens, L; Kwong, J; Lopes, JAM; Madden, N; Manalaysay, A; Manzur, A; McKinsey, DN; Monzani, ME; Ni, K; Oberlack, U; Orboeck, J; Plante, G; Santorelli, R; dos Santos, JMF; Shagin, P; Shutt, T; Sorensen, P; Schulte, S; Winant, C; Yamashita, M;

Publication
PHYSICAL REVIEW LETTERS

Abstract
XENON10 is an experiment to directly detect weakly interacting massive particles (WIMPs), which may comprise the bulk of the nonbaryonic dark matter in our Universe. We report new results for spin-dependent WIMP-nucleon interactions with (129)Xe and (131)Xe from 58.6 live days of operation at the Laboratori Nazionali del Gran Sasso. Based on the nonobservation of a WIMP signal in 5.4 kg of fiducial liquid xenon mass, we exclude previously unexplored regions in the theoretically allowed parameter space for neutralinos. We also exclude a heavy Majorana neutrino with a mass in the range of similar to 10 GeV/c(2) -2 TeV/c(2) as a dark matter candidate under standard assumptions for its density and distribution in the galactic halo.

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2008

Erratum to: "XENON" [Nucl. Phys. B (Proc. Suppl.) 173 (2007) 113-116] (DOI:10.1016/j.nuclphysbps.2007.08.142)

Authors
Aprile, E; Giboni, KL; Kamat, S; Monzani, ME; Plante, G; Yamashita, M; Gaitskell, RJ; Fiorucci, S; Sorensen, P; DeViveiros, L; Bernstein, A; Madden, N; Winant, C; Shutt, T; Kwong, J; Bolozdynya, A; Dahl, E; Oberlack, U; Shagin, P; Gomez, R; McKinsey, D; Manzur, A; Hasty, R; Ni, K; Arneodo, F; Ferella, A; Baudis, L; Angle, J; Orboeck, J; Manalaysay, A; Lopes, JAM; Coelho, L; Fernandes, L; Santos, J;

Publication
Nuclear Physics B - Proceedings Supplements

Abstract

2008

Erratum to: "3D Position Sensitive XeTPC for Dark Matter Search" [Nucl. Phys. B (Proc. Suppl.) 173 (2007) 117-120] (DOI:10.1016/j.nuclphysbps.2007.08.033)

Authors
Angle, J; Aprile, E; Arneodo, F; Baudis, L; Bernstein, A; Bolozdynya, A; Coelho, L; Dahl, E; DeViveiros, L; Ferella, A; Fernandes, L; Fiorucci, S; Gaitskell, RJ; Giboni, KL; Gomez, R; Hasty, R; Kamat, S; Kwong, J; Lopes, JAM; Madden, N; Manalaysay, A; Manzur, A; McKinsey, D; Monzani, ME; Ni, K; Oberlack, U; Orboeck, J; Plante, G; Santos, J; Shagin, P; Shutt, T; Sorensen, P; Winant, C; Yamashita, M;

Publication
Nuclear Physics B - Proceedings Supplements

Abstract

2007

Temperature independent strain/load sensor using a highly birefringent photonic crystal fibre loop mirror - art. no. 66190Y

Authors
Frazao, O; Marques, L; Marques, J; Baptista, JM; Santos, JL;

Publication
Third European Workshop on Optical Fibre Sensors

Abstract
This work presents a temperature independent strain/load sensor using a highly birefringent photonic crystal fibre loop mirror. The length of the sensing head is 38 centimetres and its corresponding wavelength spacing between two interferometer minima is 8 nm. The obtained strain and transverse load sensitivity were 1.21 pm/mu epsilon and 0.37 nm/Kg/mm, respectively, while is insensitive to temperature (0.3 pm/degrees C).

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2007

Study of LPG-assisted fibre modal Michelson interferometers with coherence addressing and heterodyne interrogation - art. no. 66192F

Authors
Caldas, P; Araujo, F; Ferreira, LA; Rego, G; Marques, MB; Santos, JL;

Publication
Third European Workshop on Optical Fibre Sensors

Abstract
In this work. the LPG-assisted fibre Michelson modal interferometer is studied as a sensing structure to environmental refractive index, temperature and liquid level when coherence addressing and heterodyne interrogation are considered. The effects on measurand sensitivity of the order of the cladding mode excited by the LPG, of the degree c etching of the sensing fibre and of the fibre type used are investigated.

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2007

Birefringence monitoring of a Hi-Bi fibre under chemical etching through a fibre loop mirror

Authors
Frazao, O; Guerreiro, A; Santos, JL; Baptista, JM;

Publication
MEASUREMENT SCIENCE & TECHNOLOGY

Abstract
Birefringence monitoring of a Hi-Bi fibre under chemical etching is conducted. The Hi-Bi fibre (a bow-tie type) was inserted in a fibre loop mirror and the optical spectral response was measured while chemical etching of the Hi-Bi fibre was taking place. The birefringence of the bow-tie fibre has decreased due to the etching and the wavelength spacing of the fringe minima of the fibre loop mirror has increased.

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