8 documents found, page 1 of 1
Searching for Heavy Dark Matter near the Planck Mass with XENON1T
Aprile, E.; Abe, K.; Ahmed Maouloud, S.; Althueser, L.; Andrieu, B.; Angelino, E.; Angevaare, J. R.; Antochi, V. C.; Antón Martin, D.; Arneodo, F.7 pages, 6 figures; Multiple viable theoretical models predict heavy dark matter particles with a mass close to the Planck mass, a range relatively unexplored by current experimental measurements. We use 219.4 days of data collected with the XENON1T experiment to conduct a blind search for signals from multiply interacting massive particles (MIMPs). Their unique track signature allows a targeted analysis with o...
Low-energy calibration of XENON1T with an internal 37 Ar source
Aprile, E.; Abe, K.; Agostini, F.; Ahmed Maouloud, S.; Alfonsi, M.; Althueser, L.; Andrieu, B.; Angelino, E.; Angevaare, J. R.; Antochi, V. C.A low-energy electronic recoil calibration of XENON1T, a dual-phase xenon time projection chamber, with an internal 37Ar source was performed. This calibration source features a 35-day half-life and provides two monoenergetic lines at 2.82 keV and 0.27 keV. The photon yield and electron yield at 2.82 keVare measured to be (32.3±0.3) photons/keV and (40.6 ± 0.5) electrons/keV, respectively, in agreement with oth...
First Dark Matter Search with Nuclear Recoils from the XENONnT Experiment
Aprile, E.; Abe, K.; Agostini, F.; Ahmed Maouloud, S.; Althueser, L.; Andrieu, B.; Angelino, E.; Angevaare, J. R.; Antochi, V. C.; Antón Martin, D.Limit points are included in the submission file; We report on the first search for nuclear recoils from dark matter in the form of weakly interacting massive particles (WIMPs) with the XENONnT experiment, which is based on a two-phase time projection chamber with a sensitive liquid xenon mass of 5.9 ton. During the (1.09±0.03) ton yr exposure used for this search, the intrinsic ^{85}Kr and ^{222}Rn concentrat...
A next-generation liquid xenon observatory for dark matter and neutrino physics
Aalbers, J.; AbdusSalam, S. S.; Abe, K.; Aerne, V.; Agostini, F.; Ahmed Maouloud, S.; Akerib, D. S.; Akimov, D. Y.; Akshat, J.; Al Musalhi, A. K.The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon timeprojection chamber is the leading technology to cover the available parameter space for weakly interacting massive particles, while featuring extensive sensitivity to many alternative dark matter candidates. These detectors can also study neutrinos through neutrinol...
Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the G...
Acharyya, A.; Adam, R.; Adams, C.; Agudo, I.; Aguirre-Santaella, A.; Alfaro, R.; Alfaro, J.; Alispach, C.; Aloisio, R.; Alves Batista, R.; Amati, L.Made available in DSpace on 2021-06-25T10:51:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Natural Sciences and Engineering Research Council of Canada; Fakulta Elektrotechniky a Informatiky, Vysoká Škola Bánská - Technická Univerzita Ostrava; Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica; Corporación de Fomento de la Producción; Seventh Framework Programme; ...
Monte Carlo studies for the optimisation of the Cherenkov Telescope Array layout
Acharyya, A.; Agudo, I.; Angüner, E. O.; Alfaro, R.; Alfaro, J.; Alispach, C.; Aloisio, R.; Alves Batista, R.; Amans, J. P.; Amati, L.; Amato, E.Made available in DSpace on 2019-10-06T16:24:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-09-01; Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica; Seventh Framework Programme; Horizon 2020; Consejo Nacional de Innovación, Ciencia y Tecnología; Ministerstvo Školství, Mládeže a Tělovýchovy; Uddannelses- og Forskningsministeriet; Ministerio de Economía, Industria y Comp...
A thermo-/pH-responsive hydrogel (PNIPAM-PDMA-PAA) with diverse nanostructures ...
Chen, Y.; Gao, Y.; Silva, Lucília Pereira; Pirraco, Rogério P.; Ma, M.; Yang, L.; Reis, R. L.; Chen, J.The aim of this research was to develop thermo- and pH-responsive hydrogels based on H-bonds for the sustained release of the small-molecule model drug Methylene Blue (MB). The thermo- or pH-sensitive triblock copolymer based on PNIPAM or PAA was synthesized by sequential RAFT polymerization and hydrolysis. By tuning the temperature or pH, the copolymer was able to form diverse nanostructures, including coreâ s...
A detailed study of the Fe-doped TiO2thin films induced by pulsed deposition route
Meng, L.; Wang, Z.; Yang, L.; Ren, W.; Liu, W.; Zhang, Z.; Yang, T.; Dos Santos, M.P.Fe-doped TiO2 thin films are deposited on the (100)oriented Si and glass substrates by pulsed laser deposition technique using Fe powder doped TiO2 ceramic target. The structural and optical properties of the film have been studied in detail. The degree of film crystallinity is investigated by X-ray diffraction and confirmed by Raman scattering measurements. The stoichiometry and chemical states of Fe, Ti and O...