Additional results from the first dedicated search for neutron–mirror neutron oscillations

The existence of a mirror world holding a copy of our ordinary particle spectrum could lead to oscillations between the neutron (n) and its mirror partner ( n ′ ). Such oscillations could manifest themselves in storage experiments with ultracold neutrons whose storage lifetime would depend on the ap...

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Veröffentlicht in:	Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2009-12, Vol.611 (2), p.141-143
Hauptverfasser:	Bodek, K., Kistryn, St, Kuźniak, M., Zejma, J., Burghoff, M., Knappe-Grüneberg, S., Sander-Thoemmes, T., Schnabel, A., Trahms, L., Ban, G., Lefort, T., Naviliat-Cuncic, O., Khomutov, N., Knowles, P., Pazgalev, A.S., Weis, A., Rogel, G., Quéméner, G., Rebreyend, D., Roccia, S., Bison, G., Severijns, N., Eberhardt, K., Hampel, G., Heil, W., Kratz, J.V., Lauer, T., Plonka-Spehr, C., Sobolev, Yu, Wiehl, N., Altarev, I., Fierlinger, P., Gutsmiedl, E., Paul, S., Stoepler, R., Daum, M., Henneck, R., Kirch, K., Knecht, A., Lauss, B., Mtchedlishvili, A., Petzoldt, G., Zsigmond, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Counting Detectors Magnetic fields Mirror neutrons Neutron oscillations Nuclear Experiment Oscillations Particle accelerators Physics Reproduction Searching Spectrometers Ultracold neutrons
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Beschreibung
Zusammenfassung:	The existence of a mirror world holding a copy of our ordinary particle spectrum could lead to oscillations between the neutron (n) and its mirror partner ( n ′ ). Such oscillations could manifest themselves in storage experiments with ultracold neutrons whose storage lifetime would depend on the applied magnetic field. Here, extended details and measurements from the first dedicated experimental search for nn ′ oscillations published in [G. Ban, K. Bodek, M. Daum, R. Henneck, S. Heule, M. Kasprzak, N. Khomutov, K. Kirch, S. Kistryn, A. Knecht, P. Knowles, M. Kuźniak, T. Lefort, A. Mtchedlishvili, O. Naviliat-Cuncic, C. Plonka, G. Quéméner, M. Rebetez, D. Rebreyend, S. Roccia, G. Rogel, M. Tur, A. Weis, J. Zejma, G. Zsigmond, Direct experimental limit on neutron mirror–neutron oscillations, Phys. Rev. Lett. 99 (2007) 161603] will be presented, focussing on a possible dependence of the UCN counts on the magnetic field and its direction. However, at present no significant change in the averaged UCN counts with respect to the applied magnetic field has been found.
ISSN:	0168-9002 1872-9576
DOI:	10.1016/j.nima.2009.07.047