| Zugriffsnummer | 25354 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Search for spin-dependent short range interaction of the bound neutron in 3He/129Xe clock comparison experiments |
| Autor(in); Institution |
Burghoff, Martin; 8.2, Biosignale, PTB-Berlin
Gemmel, C.; Institut für Physik, Universität Mainz, Mainz, GERMANY
Heil, W.; Institut für Physik, Universität Mainz, Mainz, GERMANY
Karpuk, S.; Institut für Physik, Universität Mainz, Mainz, GERMANY
Kilian, Wolfgang; 8.1, Medizinische Messtechnik, PTB-Berlin
Knappe-Grüneberg, Silvia; 8.2, Biosignale, PTB-Berlin
Lenz, K; Institut für Physik, Universität Mainz, Mainz, GERMANY
Müller, Wolfgang; 8.2, Biosignale, PTB-Berlin
Schnabel, Allard; 8.2, Biosignale, PTB-Berlin
Schmidt, U.; Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GERMANY
Seifert, Frank; 8.1, Medizinische Messtechnik, PTB-Berlin
Sobolev, Yu.; Institut für Physik, Universität Mainz, Mainz, GERMANY
Trahms, Lutz; 8.2, Biosignale, PTB-Berlin
Tullney, K.; Institut für Physik, Universität Mainz, Mainz, GERMANY
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| Quelle/Jahr | Proceedings of GRANIT:(2010) |
| Konferenzangaben | GRANIT, Workshop on Experimental and Theoretical Approaches to Quantum States of Neutrons in Gravitational Field 2010, Paris, 14-19, February, 2010, Frankreich |
| Zusammenfassung | The existence of a new spin dependent short-range Yukawa force may be a signature of pseudo-scalar boson particles like the "invisible axion" which is of interest as a possible component of cold dark matter. Our approach to search for non-magnetic spin-dependent interactions is to use a sensitive low-field co-magnetometer based on simultaneous detection of free spin precession of gaseous, nuclear polarized 3He and 129Xe samples both placed in same glass cell, thus occupying the same volume, using a SQUID as magnetic flux detector. In this experiment we use 3He as sensor for the axion-fermion interaction due to the much smaller mass (m) of 3He whereas 129Xe works as co-magnetometer to cancel influences of the ambient magnetic fields. The experiment was carried out inside the magnetically shielded room BMSR-2 at the Physikalische-Technische Bundesanstalt Berlin (PTB). One can see that the “left” and “right” results in frequency offset of the same sign and size. This is obviously a false effect since for a pseudoscalar coupling the sign should change. Our result can be considered as a demonstration of the sensitivity one obtains by using co-located 3He/129Xe sample spins. |
Zitierung
Burghoff, M., Gemmel, C., Heil, W., Karpuk, S., Kilian, W., Knappe-Grüneberg, S., Lenz, K., Müller, W., Schnabel, A., Schmidt, U., Seifert, F., Sobolev, Y., Trahms, L., & Tullney, K. (2010). Search for spin-dependent short range interaction of the bound neutron in ³He/¹²⁹Xe clock comparison experiments. GRANIT, Workshop on Experimental and Theoretical Approaches to Quantum States of Neutrons in Gravitational Field 2010, Paris, 14-19, February, 2010, Frankreich.