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44 results on '"Burghoff, M."'

4. The search for the neutron electric dipole moment at the Paul Scherrer Institute.

Author

Baker, C.A., Ban, G., Bodek, K., Burghoff, M., Chowdhuri, Z., Daum, M., Fertl, M., Franke, B., Geltenbort, P., Green, K., van der Grinten, M.G.D., Gutsmiedl, E., Harris, P.G., Henneck, R., Iaydjiev, P., Ivanov, S.N., Khomutov, N., Kasprzak, M., Kirch, K., and Kistryn, S.

Subjects
DIPOLE moments, NEUTRONS, ULTRACOLD neutrons, MAGNETOMETERS, TEMPERATURE, MAGNETIC fields, STANDARD model (Nuclear physics), PHYSICS experiments
Abstract

Abstract: The measurement of the neutron electric dipole moment (nEDM) constrains the contribution of CP-violating terms within both the Standard Model and its extensions. The experiment uses ultracold neutrons (UCN) stored in vacuum at room temperature. This technique provided the last (and best) limit by the RAL/Sussex/ILL collaboration in 2006: dn<2:9×10-26 e cm (90% C.L.). We aim to improve the experimental sensitivity by a factor of 5 within 2-3 years, using an upgrade of the same apparatus. We will take advantage of the increased ultracold neutron density at the Paul Scherrer Institute (PSI) and of a new concept including both, external magnetometers and a cohabiting magnetometer. In parallel, a next generation apparatus with two UCN storage chambers and an elaborate magnetic field control is being designed aiming to achieve another order of magnitude increase in sensitivity, allowing us to put a limit as tight as dn<5×10-28 e cm (95% C.L.), if not establishing a finite value. [Copyright &y& Elsevier]

Published
2011
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6. A template-free approach for determining the latency of single events of auditory evoked M100

Author

Burghoff, M, Link, A, Salajegheh, A, Elster, C, Poeppel, D, and Trahms, L

Abstract

The phase of the complex output of a narrow band Gaussian filter is taken to define the latency of the auditory evoked response M100 recorded by magnetoencephalography. It is demonstrated that this definition is consistent with the conventional peak latency. Moreover, it provides a tool for reducing the number of averages needed for a reliable estimation of the latency. Single-event latencies obtained by this procedure can be used to improve the signal quality of the conventional average by latency adjusted averaging.

Published
2005

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