206 citations · 873 across the 10 of their papers we have counts for
10 papers
CANISIUS The Austrian Neutron Spin Echo Interferometer
Niels Geerits, Simon Hack, Lara Brukner +4
The broad band resonant spin echo interferometer, CANISIUS, is presented. CANISIUS is built in a versatile way, such that it can be operated in both a continuous broad band beam or…
Probing of violation of Lorentz invariance by ultracold neutrons in the Standard Model Extension
A. N. Ivanov, M. Wellenzohn, H. Abele
We analyze a dynamics of ultracold neutrons (UCNs) caused by interactions violating Lorentz invariance within the Standard Model Extension (SME) (Colladay and Kostelecky, Phys. Rev…
Constraints on the Dark Matter Interpretation of the Neutron Decay Anomaly with the PERKEO II experiment
M. Klopf, E. Jericha, B. Märkisch +3
Discrepancies from in-beam and in-bottle type experiments measuring the neutron lifetime are on the 4 standard deviation level. In a recent publication Fornal and Grinstein prop…
Measurement of the Weak Axial-Vector Coupling Constant in the Decay of Free Neutrons Using a Pulsed Cold Neutron Beam
Bastian Märkisch, Holger Mest, Heiko Saul +8
We present a precision measurement of the axial-vector coupling constant in the decay of polarized free neutrons. For the first time, a pulsed cold neutron beam was used for…
Determination of the Weak Axial Vector Coupling from a Measurement of the Beta-Asymmetry Parameter A in Neutron Beta Decay
D. Mund, B. Maerkisch, M. Deissenroth +5
We report on a new measurement of the neutron beta-asymmetry parameter with the instrument \perkeo. Main advancements are the high neutron polarization of from a…
The point spread function of electrons in a magnetic field, and the decay of the free neutron
D. Dubbers, L. Raffelt, B. Maerkisch +2
Experiments in nuclear and particle physics often use magnetic fields to guide charged reaction products to a detector. Due to their gyration in the guide field, the particles hit…
A clean, bright, and versatile source of neutron decay products
D. Dubbers, H. Abele, S. Baessler +4
We present a case study on a new type of cold neutron beam station for the investigation of angular correlations in the beta-decay of free neutrons. With this beam station, called…
Characterization of a ballistic supermirror neutron guide
H. Abele, D. Dubbers, H. Haese +11
We describe the beam characteristics of the first ballistic supermirror neutron guide H113 that feeds the neutron user facility for particle physics PF1B of the Institute Laue-Lang…
Quark Mixing, CKM Unitarity
H. Abele, E. Barberio, D. Dubbers +5
In the Standard Model of elementary particles, quark-mixing is expressed in terms of a 3 x 3 unitary matrix V, the so called Cabibbo-Kobayashi-Maskawa (CKM) matrix. Significant uni…
Is the Unitarity of the quark-mixing-CKM-matrix violated in neutron -decay?
H. Abele, M. Astruc Hoffmann, S. Baessler +6
We report on a new measurement of neutron -decay asymmetry. From the result \linebreak = -0.1189(7), we derive the ratio of the axial vector to the vector coupling constan…