منابع مشابه
Constraining non standard neutrino interactions
Non-standard interactions (NSI) arise naturally when considering physics beyond the Standard Model. In particular, they can have an important influence in the solar neutrino analysis. The current status of NSI constraints will be discussed and the perspectives of future neutrino experiments will be briefly outlined.
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The recent measurements of the Michel parameters in tau decays enable, for the first time, a thorough analysis of the leptonic sector. In general, in models beyond the Standard Model, these parameters will be altered through changes in the W and Z couplings, and/or through interactions mediated by new gauge bosons. We perform a complete, model independent analysis of the constraints imposed by ...
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The transition from mean-field to correlation dynamics is studied by nuclear many-body theory in nuclear matter and finite nuclei at extreme isospin. In-medium interactions in nuclear and hypernuclear matter are described by DDRH theory with density dependent meson-baryon vertex functionals. Dynamical correlations from pairing interactions and core polarization are found to increase strongly wh...
متن کاملExotic Neutrino Interactions in Cosmic Rays
The spectrum of extra-galactic cosmic rays (CRs) is expected to follow the GreisenZatsepin-Kuzmin (GZK) cutoff at about 5× 10 GeV which results from energy losses of charged nuclei in the cosmic microwave background. So far the confrontation of this feature with CR data is inconclusive. In the absence of close-by sources a power-law continuation of the spectrum might signal the contribution of ...
متن کاملConstraining the strength of Dark Matter Interactions from Structure Formation
We discuss the damping of primordial dark matter fluctuations, taking into account explicitly the interactions of dark matter – whatever their intensity – both with itself and with other particle species. Relying on a general classification of dark matter particle candidates, our analysis provides, from structure formation, a new set of constraints on the dark matter particle mass and interacti...
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ژورنال
عنوان ژورنال: Annalen der Physik
سال: 2018
ISSN: 0003-3804,1521-3889
DOI: 10.1002/andp.201800273