Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Abele Hartmut"'
Autor:
Geerits, Niels, Hack, Simon, van Well, Ad, Parnell, Steven R., Abele, Hartmut, Sponar, Stephan
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 a pulsed Time of Flight beam. This versatility also extends to the mo
Externí odkaz:
http://arxiv.org/abs/2408.06216
Autor:
Fischer, Hauke, Käding, Christian, Sedmik, René I. P., Abele, Hartmut, Brax, Philippe, Pitschmann, Mario
The environment-dependent dilaton field is a well-motivated candidate for dark energy and naturally arises in the strong coupling limit of string theory. In this article, we present the very first experimental constraints on the parameters of this mo
Externí odkaz:
http://arxiv.org/abs/2307.00243
Publikováno v:
Phys. Rev. D 108, 104036 (2023)
The theory of entropic gravity conjectures that gravity emerges thermodynamically rather than being a fundamental force. One of the main criticisms of entropic gravity is that it would lead to quantum massive particles losing coherence in free fall,
Externí odkaz:
http://arxiv.org/abs/2307.00170
Autor:
Jenke Tobias, Bosina Joachim, Cronenberg Gunther, Filter Hanno, Geltenbort Peter, Ivanov Andrei N., Micko Jakob, Pitschmann Mario, Rechberger Tobias, Sedmik René I.P., Thalhammer Martin, Abele Hartmut
Publikováno v:
EPJ Web of Conferences, Vol 219, p 05003 (2019)
Neutrons are the ideal probes to test gravity at short distances – electrically neutral and only hardly polarizable. Furthermore, very slow, so-called ultracold neutrons form bound quantum states in the gravity potential of the Earth. This allows c
Externí odkaz:
https://doaj.org/article/31ff2c2b73c248138339a29c0c909263
Publikováno v:
EPJ Web of Conferences, Vol 219, p 05007 (2019)
Discrepancies from beam and bottle type experiments measuring the neutron lifetime are on the 4σ level. In recent publications Fornal and Grinstein proposed that the puzzle could be solved if the neutron would decay on the one percent level via a da
Externí odkaz:
https://doaj.org/article/1d7f916ccebe4843b3d37f37ff1f0aec
Publikováno v:
EPJ Web of Conferences, Vol 219, p 01001 (2019)
What is driving the accelerated expansion of the universe and do we have an alternative for Einstein's cosmological constant? What is dark matter made of? Do extra dimensions of space and time exist? Is there a preferred frame in the universe? To whi
Externí odkaz:
https://doaj.org/article/b4c6743f15de4ab5abf4cf66b72feaa0
Autor:
Sedmik René I.P., Bosina Joachim, Achatz Lukas, Geltenbort Peter, Heiß Manuel, Ivanov Andrey N., Jenke Tobias, Micko Jakob, Pitschmann Mario, Rechberger Tobias, Schmidt Patrick, Thalhammer Martin, Abele Hartmut
Publikováno v:
EPJ Web of Conferences, Vol 219, p 05004 (2019)
Ultracold neutrons (UCNs) are formidable probes in precision tests of gravity. With their negligible electric charge, dielectric moment, and polarizability they naturally evade some of the problems plaguing gravity experiments with atomic or macrosco
Externí odkaz:
https://doaj.org/article/8678aa476c6c4bdd99cbb0aa1d49f966
Autor:
Moser Daniel, Abele Hartmut, Bosina Joachim, Fillunger Harald, Soldner Torsten, Wang Xiangzun, Zmeskal Johann, Konrad Gertrud
Publikováno v:
EPJ Web of Conferences, Vol 219, p 04003 (2019)
The beta decay of the free neutron provides several probes to test the Standard Model of particle physics as well as to search for extensions thereof. Hence, multiple experiments investigating the decay have already been performed, are under way or a
Externí odkaz:
https://doaj.org/article/b6f81d2a0e094e6c914c3a6e5052150f
Autor:
Soldner Torsten, Abele Hartmut, Konrad Gertrud, Märkisch Bastian, Piegsa Florian M., Schmidt Ulrich, Theroine Camille, Sánchez Pablo Torres
Publikováno v:
EPJ Web of Conferences, Vol 219, p 10003 (2019)
Pulsed beams have tremendous advantages for precision experiments with cold neutrons. In order to minimise and measure systematic effects, they are used at continuous sources in spite of the related substantial decrease in intensity. At the European
Externí odkaz:
https://doaj.org/article/03e01ccddfd549ccbc31c70865751bc1
Autor:
Wang Xiangzun, Ziener Carmen, Abele Hartmut, Bodmaier Stefan, Dubbers Dirk, Erhart Jaqueline, Hollering Alexander, Jericha Erwin, Klenke Jens, Fillunger Harald, Heil Werner, Klauser Christine, Konrad Gertrud, Lamparth Max, Lauer Thorsten, Klopf Michael, Maix Reinhard, Märkisch Bastian, Mach Wilfried, Mest Holger, Moser Daniel, Pethoukov Alexander, Raffelt Lukas, Rebrova Nataliya, Roick Christoph, Saul Heiko, Schmidt Ulrich, Soldner Torsten, Virot Romain, Zimmer Oliver
Publikováno v:
EPJ Web of Conferences, Vol 219, p 04007 (2019)
The PERC (Proton and Electron Radiation Channel) facility is currently under construction at the research reactor FRM II, Garching. It will serve as an intense and clean source of electrons and protons from neutron beta decay for precision studies. I
Externí odkaz:
https://doaj.org/article/78aafc8d2dd641c283a5ef32cb75dcde