Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Jörn Kersten"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 5, Pp 1-22 (2023)
Abstract We investigate enhancing the sensitivity of new physics searches at the LHC by machine learning in the case of background dominance and a high degree of overlap between the observables for signal and background. We use two different models,
Externí odkaz:
https://doaj.org/article/adaa228bde764042a3c016f2b5f71ff1
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 5, Pp 1-21 (2017)
Abstract We consider a gaugino-mediated supersymmetry breaking scenario where in addition to the gauginos the Higgs fields couple directly to the field that breaks supersymmetry. This yields non-vanishing trilinear scalar couplings in general, which
Externí odkaz:
https://doaj.org/article/d79711d3157f494f9ed88214588218c9
Autor:
Torsten Bringmann, Paul Frederik Depta, Marco Hufnagel, Jörn Kersten, Joshua T. Ruderman, Kai Schmidt-Hoberg
Publikováno v:
Physical Review
Physical review / D 107(7), L071702 (2023). doi:10.1103/PhysRevD.107.L071702
Physical review / D 107(7), L071702 (2023). doi:10.1103/PhysRevD.107.L071702
Physical review / D 107(7), L071702 (2023). doi:10.1103/PhysRevD.107.L071702
We propose a novel mechanism to generate sterile neutrinos $\nu_s$ in the early Universe, by converting ordinary neutrinos $\nu_\alpha$ in scattering processes $\nu_s\n
We propose a novel mechanism to generate sterile neutrinos $\nu_s$ in the early Universe, by converting ordinary neutrinos $\nu_\alpha$ in scattering processes $\nu_s\n
Publikováno v:
Physical Review D
Physical Review
Physical Review
We consider both “bottom-up” and “top-down” approaches to the origin of gauge kinetic mixing. We focus on the possibilities for obtaining kinetic mixings ε which are consistent with experimental constraints and are much smaller than the naiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::466f1bf7a3960a732e7e8e22cebb53af
https://hdl.handle.net/1956/23240
https://hdl.handle.net/1956/23240
Autor:
Jörn Kersten
Publikováno v:
Nuclear Physics B - Proceedings Supplements. :342-344
We show that supernova neutrinos have extremely small wave packets compared to neutrinos from other sources and study possible consequences. In simple examples it turns out that the experimentally observable oscillation probability does not depend on
Publikováno v:
Physics Letters B. 597(1):63-72
It has been shown that only certain neutrino mass matrices with texture zeros are compatible with existing data. We discuss the stability of phenomenological consequences of texture zeros under radiative corrections in the type-I see-saw scenario. We
Publikováno v:
Antusch, S; Drees, M; Kersten, J; Lindner, M; & Ratz, M. (2001). Neutrino mass operator renormalization revisited. Physics Letters B, 519(3-4), 238-242. doi: 10.1016/S0370-2693(01)01127-3. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/10q4h3vb
We re-derive the renormalization group equation for the effective coupling of the dimension five operator which corresponds to a Majorana mass matrix for the Standard Model neutrinos. We find a result which differs somewhat from earlier calculations,
Autor:
Jörn Kersten, Jan Heisig
Publikováno v:
Physical Review D. 86
We study the phenomenology of a supersymmetric scenario where the next-to-lightest superparticle is the lighter stau and long-lived due to a very weakly coupled lightest superparticle, such as the gravitino. We investigate the LHC sensitivity and its
Autor:
Jasper Hasenkamp, Jörn Kersten
A small breaking of R-parity reconciles thermal leptogenesis, gravitino dark matter and primordial nucleosynthesis. We find that the same breaking relaxes cosmological bounds on the axion multiplet. Naturally expected spectra become allowed and bound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba4109e007fc201ec7b541c2324beefb
http://arxiv.org/abs/1103.6193
http://arxiv.org/abs/1103.6193
Autor:
Jan Heisig, Jörn Kersten
We investigate the phenomenology of the gravitino dark matter scenario with a stau as the next-to-lightest supersymmetric particle at the LHC. For a wide range of gravitino masses the lighter stau is stable on the scale of a detector and gives rise t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::840ccaf212500221fd2ff592998a4c8e