Abele, H., Jenke, T., Leeb, H., Schmiedmayer, J.
We propose to apply Ramsey's method of separated oscillating fields to the spectroscopy of the quantum states in the gravity potential above a vertical mirror. This method allows a precise...
Dubbers, D., Maerkisch, B., Friedl, F., Abele, H.
When a uniform magnetic field is used to guide electrons from a beta-emitter to a detector, the electrons on the detector are distributed over an area whose size is larger than the size of the source...
Measurement of the Proton Asymmetry Parameter C in Neutron Beta Decay (2007)
Schumann, M., Kreuz, M., Deissenroth, M., Glueck, F., Krempel, J., Maerkisch, B., ...
The proton asymmetry parameter C in neutron decay describes the correlation between neutron spin and proton momentum. In this Letter, the first measurement of this quantity is presented. The result...
Quantum motion of a neutron in a waveguide in the gravitational field (2007)
Voronin, Alexei Yu., Abele, H., Baessler, S., Nesvizhevsky, V.V., Petukhov, A.K., Protasov, K.V., ...
We study theoretically the quantum motion of a neutron in a horizontal wave-guide in the gravitational field of the Earth. The wave-guide in question is equipped with a mirror below and a rough...
A clean, bright, and versatile source of neutron decay products (2007)
Dubbers, D., Abele, H., Baessler, S., Maerkisch, B., Schumann, M., Soldner, T., ...
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 PERC, the 'active...
Unrecognized Backscattering in Low Energy Beta Spectroscopy (2007)
We present studies on electron backscattering from the surface of plastic scintillator beta detectors. By using a setup of two detectors coaxial with a strong external magnetic field - one detector...
GRANIT project: a trap for gravitational quantum states of UCN (2007)
Pignol, G., Protasov, K. V., Rebreyend, D., Vezzu, F., Nesvizhevsky, V. V., Petukhov, A. K., ...
Previous studies of gravitationally bound states of ultracold neutrons showed the quantization of energy levels, and confirmed quantum mechanical predictions for the average size of the two lowest...
Westphal, A., Abele, H., Baessler, S., Nesvizhevsky, V.V., Petukhov, A.K., Protasov, K.V., ...
Quantum states in the Earth's gravitational field were observed, when ultra-cold neutrons fall under gravity. The experimental results can be described by the quantum mechanical scattering model as...
Measurement of the Neutrino Asymmetry Parameter B in Neutron Decay (2007)
Schumann, M., Soldner, T., Deissenroth, M., Glueck, F., Krempel, J., Kreuz, M., ...
A new measurement of the neutrino asymmetry parameter B in neutron decay, the angular correlation between neutron spin and anti-neutrino momentum, is presented. The result, B=0.9802(50), agrees with...
Imaging with Scattered Neutrons (2006)
Ballhausen, H., Abele, H., Gaehler, R., Trapp, M., Van Overberghe, A.
We describe a novel experimental technique for neutron imaging with scattered neutrons. These scattered neutrons are of interest for condensed matter physics, because they permit to reveal the local...
Neutron Radiography Analysis of a Transient Liquid Phase Joint (2006)
Ballhausen, H., Abele, H., Eccleston, R. S., Gaehler, R., Smith, A. J., Steuwer, A., ...
Neutron radiography in many cases is the only non-destructive technique available for the analysis of a wide range of samples from metallurgy, materials engineering and materials testing. In this...
Quantum motion of a neutron in a waveguide in the gravitational field (2006)
Voronin, A.Yu., Abele, H., Baeßler, S., Nesvizhevsky, V.V., Petukhov, A.K., Protasov, K.V., ...
We study theoretically the quantum motion of a neutron in a horizontal waveguide in the gravitational field of the Earth. The waveguide in question is equipped with a mirror below and a rough surface...
Westphal, Alexander, Abele, H., Baessler, S., Nesvizhevsky, V. V., Petukhov, A. K., Protasov, K. V., ...
Quantum states in the Earth's gravitational field were observed, when ultra-cold neutrons fall under gravity. The experimental results can be described by the quantum mechanical scattering model as...
Study of the neutron quantum states in the gravity field (2006)
Nesvizhevsky, V.V., Petukhov, A.K., .Boerner, H.G, Baranova, T.A., Gagarski, A.M., Petrov, G.A., ...
We have studied neutron quantum states in the potential well formed by the earth's gravitational field and a horizontal mirror. The estimated characteristic sizes of the neutron wave functions in the...
Measurement of quantum states of neutrons in the Earth's gravitational field (2006)
Nesvizhevsky, V.V., Boerner, H.G., Gagarski, A.M., Petoukhov, A.K., Petrov, G.A., Abele, H., ...
The lowest stationary quantum state of neutrons in the Earth's gravitational field is identified in the measurement of neutron transmission between a horizontal mirror on the bottom and an absorber...
Measurement of quantum states of neutrons in the Earth's gravitational field (2006)
Nesvizhevsky, V.V., Boerner, H.G., Gagarski, A.M., Petoukhov, A.K., Petrov, G.A., Abele, H., ...
The lowest stationary quantum state of neutrons in the Earth's gravitational field is identified in the measurement of neutron transmission between a horizontal mirror on the bottom and an absorber...
Measurement of quantum states of neutrons in the Earth's gravitational field (2006)
Nesvizhevsky, V.V., Boerner, H.G., Gagarski, A.M., Petoukhov, A.K., Petrov, G.A., Abele, H., ...
The lowest stationary quantum state of neutrons in the Earth's gravitational field is identified in the measurement of neutron transmission between a horizontal mirror on the bottom and an absorber...
Quantum motion of a neutron in a waveguide in the gravitational field (2006)
Voronin, A.Yu., Abele, H., Baeßler, S., Nesvizhevsky, V.V., Petukhov, A.K., Protasov, K.V., ...
We study theoretically the quantum motion of a neutron in a horizontal waveguide in the gravitational field of the Earth. The waveguide in question is equipped with a mirror below and a rough surface...
Westphal, A., Abele, H., Baessler, S., Nesvizhevsky, V.V., Petukhov, A.K., Protasov, K.V., ...
Quantum states in the Earth's gravitational field were observed, when ultra-cold neutrons fall under gravity. The experimental results can be described by the quantum mechanical scattering model as...
Quantum motion of a neutron in a waveguide in the gravitational field (2006)
Voronin, A.Yu., Abele, H., Baeßler, S., Nesvizhevsky, V.V., Petukhov, A.K., Protasov, K.V., ...
We study theoretically the quantum motion of a neutron in a horizontal waveguide in the gravitational field of the Earth. The waveguide in question is equipped with a mirror below and a rough surface...
Westphal, A., Abele, H., Baessler, S., Nesvizhevsky, V.V., Petukhov, A.K., Protasov, K.V., ...
Quantum states in the Earth's gravitational field were observed, when ultra-cold neutrons fall under gravity. The experimental results can be described by the quantum mechanical scattering model as...
Quantum motion of a neutron in a wave-guide in the gravitational field (2005)
Voronin, A. Yu., Abele, H., Baessler, S., Nesvizhevsky, V. V., Petukhov, A. K., Protasov, K. V., ...
We study theoretically the quantum motion of a neutron in a horizontal wave-guide in the gravitational field of the Earth. The wave-guide in question is equipped with a mirror below and a rough...
Status of the Cabibbo Angle (2005)
Blucher, E., De Lucia, E., Isidori, G., Lubicz, V., Abele, H., Cirigliano, V., ...
We review the recent experimental and theoretical progress in the determination of |V_{ud}| and |V_{us}|, and the status of the most stringent test of CKM unitarity. Future prospects on |V_{cd}| and...
Status of the Cabibbo angle (2005)
Blucher, E., De Lucia, E., Isidori, G., Lubicz, V., Abele, H., Cirigliano, V., ...
We review the recent experimental and theoretical progress in the determination of |Vud| and |Vus|, and the status of the most stringent test of CKM unitarity. Future prospects on |Vcd| and |Vcs| are...
Characterization of a ballistic supermirror neutron guide (2005)
Abele, H., Dubbers, D., Haese, H., Klein, M., Knoepfler, A., Kreuz, M., ...
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-Langevin, Grenoble...
Study of the neutron quantum states in the gravity field (2005)
Nesvizhevsky, V. V., Petukhov, A. K., Boerner, H. G., Baranova, T. A., Gagarski, A. M., Petrov, G. A., ...
We have studied neutron quantum states in the potential well formed by the earth's gravitational field and a horizontal mirror. The estimated characteristic sizes of the neutron wave functions in the...
Investigation of the neutron quantum states in the Earth's gravitational field (2005)
Nesvizhevsky, V.V., Petukhov, A.K., Borner, H.G., Baranova, T.A., Gagarski, A.M., Petrov, G.A., ...
We studied the neutron quantum states in the potential well formed by the Earth's gravitational field and a horizontal mirror. The estimated characteristic sizes of the neutron wave functions in two...
Study of the neutron quantum states in the gravity field (2005)
Nesvizhevsky, V.V., Petukhov, A.K., .Boerner, H.G, Baranova, T.A., Gagarski, A.M., Petrov, G.A., ...
We have studied neutron quantum states in the potential well formed by the earth's gravitational field and a horizontal mirror. The estimated characteristic sizes of the neutron wave functions in the...
Investigation of the neutron quantum states in the Earth's gravitational field (2005)
Nesvizhevsky, V.V., Petukhov, A.K., Borner, H.G., Baranova, T.A., Gagarski, A.M., Petrov, G.A., ...
We studied the neutron quantum states in the potential well formed by the Earth's gravitational field and a horizontal mirror. The estimated characteristic sizes of the neutron wave functions in two...
Study of the neutron quantum states in the gravity field (2005)
Nesvizhevsky, V.V., Petukhov, A.K., .Boerner, H.G, Baranova, T.A., Gagarski, A.M., Petrov, G.A., ...
We have studied neutron quantum states in the potential well formed by the earth's gravitational field and a horizontal mirror. The estimated characteristic sizes of the neutron wave functions in the...
Quark Mixing, CKM Unitarity (2003)
Abele, H., Barberio, E., Dubbers, D., Glueck, F., Hardy, J. C., Marciano, W. J., ...
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 unitarity checks are...
Measurement of quantum states of neutrons in the Earth's gravitational field (2003)
Nesvizhevsky, V. V., Boerner, H. G., Gagarsky, A. M., Petoukhov, A. K., Petrov, G. A., Abele, H., ...
The lowest stationary quantum state of neutrons in the Earth's gravitational field is identified in the measurement of neutron transmission between a horizontal mirror on the bottom and an absorber...
Measurement of quantum states of neutrons in the Earth's gravitational field (2003)
Nesvizhevsky, V.V., Boerner, H.G., Gagarski, A.M., Petoukhov, A.K., Petrov, G.A., Abele, H., ...
The lowest stationary quantum state of neutrons in the Earth's gravitational field is identified in the measurement of neutron transmission between a horizontal mirror on the bottom and an absorber...
Nesvizhevsky, V.V., Petoukhov, A.K., Boerner, H.G., Protasov, K.V., Voronin, A.Yu., Westphal, A., ...
Measurement of quantum states of neutrons in the Earth's gravitational field (2003)
Nesvizhevsky, V.V., Boerner, H.G., Gagarski, A.M., Petoukhov, A.K., Petrov, G.A., Abele, H., ...
The lowest stationary quantum state of neutrons in the Earth's gravitational field is identified in the measurement of neutron transmission between a horizontal mirror on the bottom and an absorber...
Nesvizhevsky, V.V., Petoukhov, A.K., Boerner, H.G., Protasov, K.V., Voronin, A.Yu., Westphal, A., ...
Abele, H., Dreher, C., Eggers, T., Fischer, R., Hummel, V., Sautter, A.
Die gemeinsame Studie der Fraunhofer Institute IPA und ISI deckt neue Entwicklungstendenzen im Mittelstand auf und belegt, dass die im Fraktal-Konzept, im E-Business, in der Netzwerkbildung und in...
Is the Unitarity of the quark-mixing-CKM-matrix violated in neutron $\beta$-decay? (2002)
Abele, H., Hoffmann, M. Astruc, Baessler, S., Dubbers, D., Glück, F., Müller, U., ...
We report on a new measurement of neutron $\beta$-decay asymmetry. From the result \linebreak $A_0$ = -0.1189(7), we derive the ratio of the axial vector to the vector coupling constant $\lambda$ =...
Systematics of $\alpha$--nucleus optical potentials (1994)
Mohr, P., Abele, H., Atzrott, U., Staudt, G., Bieber, R., Grün, K., ...
Double--folded optical $\alpha$--nucleus potentials can be used to calculate elastic scattering cross sections in a wide mass-- and energy region. Because of the systematic behavior of the potential...
Alpha Clustering and the stellar nucleosynthesis of carbon (1993)
Oberhummer, H., Krauss, H., Grün, K., Rauscher, T., Abele, H., Mohr, P., ...
The astrophysical S--factor and reaction rates for the triple--alpha process are calculated in the direct--capture model. It is shown that the stellar carbon production is extremely sensitive to...
Properties of $^{8}$Be and $^{12}$C deduced from the folding--potential model (1993)
Mohr, P., Abele, H., Kölle, V., Staudt, G., Oberhummer, H., Krauss, H.
The $\alpha$--$\alpha$ differential cross sections are analyzed in the optical model using a double--folded potential. With the knowledge of this potential bound and resonance--state properties of...
Alpha Clustering and the stellar nucleosynthesis of carbon (1993)
Oberhummer, H., Krauss, H., Grün, K., Rauscher, T., Abele, H., Mohr, P., ...
The astrophysical S--factor and reaction rates for the triple--alpha process are calculated in the direct--capture model. It is shown that the stellar carbon production is extremely sensitive to...
Properties of $^{8}$Be and $^{12}$C deduced from the folding--potential model (1993)
Mohr, P., Abele, H., Kölle, V., Staudt, G., Oberhummer, H., Krauss, H.
The $\alpha$--$\alpha$ differential cross sections are analyzed in the optical model using a double--folded potential. With the knowledge of this potential bound and resonance--state properties of...
Alpha scattering and capture reactions in the A = 7 system at low energies (1993)
Mohr, P., Abele, H., Zwiebel, R., Staudt, G., Krauss, H., Oberhummer, H., ...
Differential cross sections for $^3$He-$\alpha$ scattering were measured in the energy range up to 3 MeV. These data together with other available experimental results for $^3$He $+ \alpha$ and $^3$H...
Elastic and inelastic #a-scattering on light nuclei. (1988)
Abele, H., Jaentsch, H., Neu, R., Staudt, G., Striebele, Ch., Eversheim, P.D., ...
Fruehjahrstagung DPG, Kern- und Mittelenergiephysik, Physikausstellung, Berlin, 21.-25.Maerz, 1988
Measurement and folding-potential analysis of the inelastic #a-scattering on light nuclei. (1988)
Striebel, Ch., Neu, R., Abele, H., Staudt, G., Gils, H.J.
5th Internat.Conf.on Clustering Aspects in Nuclear and Subnuclear Systems (Cluster 88), Kyoto, J, July 25-29, 1988