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Autor:
Reichhart, L., Lindote, A., Akimov, D. Yu., Araujo, H. M., Barnes, E. J., Belov, V. A., Bewick, A., Burenkov, A. A., Chepel, V., Currie, A., DeViveiros, L., Edwards, B., Francis, V., Ghag, C., Hollingsworth, A., Horn, M., Kalmus, G. E., Kobyakin, A. S., Kovalenko, A. G., Kudryavtsev, V. A., Lebedenko, V. N., Lopes, M. I., Luscher, R., Majewski, P., Murphy, A. St J., Neves, F., Paling, S. M., da Cunha, J. Pinto, Preece, R., Quenby, J. J., Scovell, P. R., Silva, C., Solovov, V. N., Smith, N. J. T., Smith, P. F., Stekhanov, V. N., Sumner, T. J., Thorne, C., Walker, R. J.
Publikováno v:
Astroparticle Physics 47 (2013) 67-76
A measurement is presented of the neutron production rate in lead by high energy cosmic-ray muons at a depth of 2850 m water equivalent (w.e.) and a mean muon energy of 260 GeV. The measurement exploits the delayed coincidences between muons and the
Externí odkaz:
http://arxiv.org/abs/1302.4275
Autor:
Solovov, V. N., Belov, V. A., Akimov, D. Yu., Araújo, H. M., Barnes, E. J., Burenkov, A. A., Chepel, V., Currie, A., DeViveiros, L., Edwards, B., Ghag, C., Hollingsworth, A., Horn, M., Kalmus, G. E., Kobyakin, A. S., Kovalenko, A. G., Lebedenko, V. N., Lindote, A., Lopes, M. I., Lüscher, R., Majewski, P., Murphy, A. St J., Neves, F., Paling, S. M., da Cunha, J. Pinto, Preece, R., Quenby, J. J., Reichhart, L., Scovell, P. R., Silva, C., Smith, N. J. T., Smith, P. F., Stekhanov, V. N., Sumner, T. J., Thorne, C., Walker, R. J.
We studied the application of statistical reconstruction algorithms, namely maximum likelihood and least squares methods, to the problem of event reconstruction in a dual phase liquid xenon detector. An iterative method was developed for in-situ reco
Externí odkaz:
http://arxiv.org/abs/1112.1481
Autor:
Majewski, P., Solovov, V. N., Akimov, D. Yu., Araujo, H. M., Barnes, E. J., Belov, V. A., Burenkov, A. A., Chepel, V., Currie, A., DeViveiros, L., Edwards, B., Ghag, C., Hollingsworth, A., Horn, M., Kalmus, G. E., Kobyakin, A. S., Kovalenko, A. G., Lebedenko, V. N., Lindote, A., Lopes, M. I., Luscher, R., Murphy, A. St J., Neves, F., Paling, S. M., da Cunha, J. Pinto, Preece, R., Quenby, J. J., Reichhart, L., Scovell, P. R., Silva, C., Smith, N. J. T., Stekhanov, V. N., Sumner, T. J., Thorne, C., Walker, R. J.
ZEPLIN-III is a two-phase xenon direct dark matter experiment located at the Boulby Mine (UK). After its first science run in 2008 it was upgraded with: an array of low background photomultipliers, a new anti-coincidence detector system with plastic
Externí odkaz:
http://arxiv.org/abs/1112.0080
Autor:
Reichhart, L., Akimov, D. Yu., Araujo, H. M., Barnes, E. J., Belov, V. A., Burenkov, A. A., Chepel, V., Currie, A., DeViveiros, L., Edwards, B., Francis, V., Ghag, C., Hollingsworth, A., Horn, M., Kalmus, G. E., Kobyakin, A. S., Kovalenko, A. G., Lebedenko, V. N., Lindote, A., Lopes, M. I., Luscher, R., Majewski, P., Murphy, A. St J., Neves, F., Paling, S. M., da Cunha, J. Pinto, Preece, R., Quenby, J. J., Scovell, P. R., Silva, C., Solovov, V. N., Smith, N. J. T., Smith, P. F., Stekhanov, V. N., Sumner, T. J., Thorne, C., Walker, R. J.
Plastic scintillators are widely used in industry, medicine and scientific research, including nuclear and particle physics. Although one of their most common applications is in neutron detection, experimental data on their response to low-energy nuc
Externí odkaz:
http://arxiv.org/abs/1111.2248
Autor:
Akimov, D. Yu., Araujo, H. M., Barnes, E. J., Belov, V. A., Bewick, A., Burenkov, A. A., Chepel, V., Currie, A., DeViveiros, L., Edwards, B., Ghag, C., Hollingsworth, A., Horn, M., Jones, W. G., Kalmus, G. E., Kobyakin, A. S., Kovalenko, A. G., Lebedenko, V. N., Lindote, A., Lopes, M. I., Luscher, R., Majewski, P., Murphy, A. StJ., Neves, F., Paling, S. M., da Cunha, J. Pinto, Preece, R., Quenby, J. J., Reichhart, L., Scovell, P. R., Silva, C., Solovov, V. N., Smith, N. J. T., Stekhanov, V. N., Sumner, T. J., Thorne, C., Walker, R. J.
We report experimental upper limits on WIMP-nucleon elastic scattering cross sections from the second science run of ZEPLIN-III at the Boulby Underground Laboratory. A raw fiducial exposure of 1,344 kg.days was accrued over 319 days of continuous ope
Externí odkaz:
http://arxiv.org/abs/1110.4769
Autor:
Santos, E., Edwards, B., Chepel, V., Araujo, H. M., Akimov, D. Yu., Barnes, E. J., Belov, V. A., Burenkov, A. A., Currie, A., DeViveiros, L., Ghag, C., Hollingsworth, A., Horn, M., Kalmus, G. E., Kobyakin, A. S., Kovalenko, A. G., Lebedenko, V. N., Lindote, A., Lopes, M. I., Luscher, R., Majewski, P., Murphy, A. StJ., Neves, F., Paling, S. M., da Cunha, J. Pinto, Preece, R., Quenby, J. J., Reichhart, L., Scovell, P. R., Silva, C., Solovov, V. N., Smith, N. J. T., Smith, P. F., Stekhanov, V. N., Sumner, T. J., Thorne, C., Walker, R. J.
We present an experimental study of single electron emission in ZEPLIN-III, a two-phase xenon experiment built to search for dark matter WIMPs, and discuss applications enabled by the excellent signal-to-noise ratio achieved in detecting this signatu
Externí odkaz:
http://arxiv.org/abs/1110.3056
Autor:
Neves, F., Akimov, D. Yu., Araújo, H. M., Barnes, E. J., Belov, V. A., Burenkov, A. A., Chepel, V., Currie, A., DeViveiros, L., Edwards, B., Ghag, C., Hollingsworth, A., Horn, M., Kalmus, G. E., Kobyakin, A. S., Kovalenko, A. G., Lebedenko, V. N., Lindote, A., Lopes, M. I., Lüscher, R., Majewski, P., Murphy, A. St J., Paling, S. M., da Cunha, J. Pinto, Preece, R., Quenby, J. J., Reichhart, L., Rodrigues, S., Scovell, P. R., Silva, C., Solovov, V. N., Smith, N. J. T., Smith, P. F., Stekhanov, V. N., Sumner, T. J., Thorne, C., Walker, R. J.
ZE3RA is the software package responsible for processing the raw data from the ZEPLIN-III dark matter experiment and its reduction into a set of parameters used in all subsequent analyses. The detector is a liquid xenon time projection chamber with s
Externí odkaz:
http://arxiv.org/abs/1106.0808
Autor:
Horn, M., Belov, V. A., Akimov, D. Yu., Araújo, H. M., Barnes, E. J., Burenkov, A. A., Chepel, V., Currie, A., Edwards, B., Ghag, C., Hollingsworth, A., Kalmus, G. E., Kobyakin, A. S., Kovalenko, A. G., Lebedenko, V. N., Lindote, A., Lopes, M. I., Lüscher, R., Majewski, P., Murphy, A. StJ., Neves, F., Paling, S. M., da Cunha, J. Pinto, Preece, R., Quenby, J. J., Reichhart, L., Scovell, P. R., Silva, C., Solovov, V. N., Smith, N. J. T., Smith, P. F., Stekhanov, V. N., Sumner, T. J., Thorne, C., de Viveiros, L., Walker, R. J.
Scintillation and ionisation yields for nuclear recoils in liquid xenon above 10 keVnr (nuclear recoil energy) are deduced from data acquired using broadband Am-Be neutron sources. The nuclear recoil data from several exposures to two sources were co
Externí odkaz:
http://arxiv.org/abs/1106.0694
Autor:
Araujo, H. M., Akimov, D. Yu., Barnes, E. J., Belov, V. A., Bewick, A., Burenkov, A. A., Currie, V. Chepel. A., DeViveiros, L., Edwards, B., Ghag, C., Hollingsworth, A., Horn, M., Kalmus, G. E., Kobyakin, A. S., Kovalenko, A. G., Lebedenko, V. N., Lindote, A., Lopes, M. I., Luscher, R., Majewski, P., Neves, A. StJ. Murphy. F., Paling, S. M., da Cunha, J. Pinto, Preece, R., Quenby, J. J., Reichhart, L., Scovell, P. R., Silva, C., Solovov, V. N., Smith, N. J. T., Smith, P. F., Stekhanov, V. N., Sumner, T. J., Thorne, C., Walker, R. J.
We examine electron and nuclear recoil backgrounds from radioactivity in the ZEPLIN-III dark matter experiment at Boulby. The rate of low-energy electron recoils in the liquid xenon WIMP target is 0.75$\pm$0.05 events/kg/day/keV, which represents a 2
Externí odkaz:
http://arxiv.org/abs/1104.3538