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Constraints on Spin-Dependent Short-Range Interaction between Nucleons

Physical review letters. Bd. 111. College Park, Md.: APS 2013 100801

Erscheinungsjahr: 2013

ISBN/ISSN: 0031-9007

Publikationstyp: Zeitschriftenaufsatz

Sprache: Englisch

Doi/URN: 10.1103/PhysRevLett.111.100801

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Inhaltszusammenfassung


We search for a spin-dependent P- and T-violating nucleon-nucleon interaction mediated by light pseudoscalar bosons such as axions or axionlike particles. We employ an ultrasensitive low-field magnetometer based on the detection of free precession of colocated He-3 and Xe-129 nuclear spins using SQUIDs as low-noise magnetic flux detectors. The precession frequency shift in the presence of an unpolarized mass was measured to determine the coupling of pseudoscalar particles to the spin of the b...We search for a spin-dependent P- and T-violating nucleon-nucleon interaction mediated by light pseudoscalar bosons such as axions or axionlike particles. We employ an ultrasensitive low-field magnetometer based on the detection of free precession of colocated He-3 and Xe-129 nuclear spins using SQUIDs as low-noise magnetic flux detectors. The precession frequency shift in the presence of an unpolarized mass was measured to determine the coupling of pseudoscalar particles to the spin of the bound neutron. For boson masses between 2 and 500 mu eV (force ranges between 3 x 10(-4) m and 10(-1) m) we improved the laboratory upper bounds by up to 4 orders of magnitude.» weiterlesen» einklappen

Autoren


Tullney, K. (Autor)
Allmendinger, F. (Autor)
Burghoff, M. (Autor)
Heil, W. (Autor)
Kilian, W. (Autor)
Knappe-Grüneberg, S. (Autor)
Müller, W. (Autor)
Schmidt, U. (Autor)
Schnabel, A. (Autor)
Seifert, F. (Autor)
Sobolev, Y. (Autor)
Trahms, L. (Autor)

Klassifikation


DFG Fachgebiet:
Teilchen, Kerne und Felder

DDC Sachgruppe:
Physik

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