Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Dreiner, Herbert K."'
Recently, Belle II announced evidence for the decay $B^+\to K^+ \nu \bar{\nu}$ at $3.6\sigma$ significance, and measured the corresponding decay branching ratio to be $2.4\times 10^{-5}$, which is $2.8\sigma$ above the standard-model prediction. Here
Externí odkaz:
http://arxiv.org/abs/2309.03727
Publikováno v:
Phys. Rev. D 104, 015020 (2021)
We present a reanalysis of nucleon decay in the context of the R-parity violating MSSM, updating bounds on R-parity violating parameters against recent experimental and lattice results. We pay particular attention to the derivation of these constrain
Externí odkaz:
http://arxiv.org/abs/2012.11623
We study the prospects of a displaced-vertex search of sterile neutrinos at the Large Hadron Collider (LHC) in the framework of the neutrino-extended Standard Model Effective Field Theory ($\nu$SMEFT). The production and decay of sterile neutrinos ca
Externí odkaz:
http://arxiv.org/abs/2010.07305
Publikováno v:
Phys. Rev. D 103, 075013 (2021)
In R-parity-violating supersymmetry the lightest neutralino can be very light, even massless. For masses in the range $500$ MeV$\lesssim m_{\tilde\chi^0_1}\lesssim 4.5$ GeV the neutralino can be produced in hadron collisions from rare meson decays vi
Externí odkaz:
http://arxiv.org/abs/2008.07539
We consider pair production of LSP staus at the LHC within R-parity violating supersymmetry. The staus decay into Standard Model leptons through the LL\=E operator. Using CheckMATE we have recast multileptonic searches to test such scenarios. We show
Externí odkaz:
http://arxiv.org/abs/2001.05000
Publikováno v:
Phys. Rev. D 99, 055020 (2019)
Recently Gligorov $\textit{et al.}$ [arXiv:1810.03636] proposed to build a cylindrical detector named '$\texttt{AL3X}$' close to the $\texttt{ALICE}$ experiment at interaction point (IP) 2 of the LHC, aiming for discovery of long-lived particles (LLP
Externí odkaz:
http://arxiv.org/abs/1811.01995
Autor:
Domingo, Florian, Dreiner, Herbert K., Kim, Jong Soo, Krauss, Manuel E., Lozano, Victor Martin, Wang, Zeren Simon
We update the bounds on $R$-parity violating supersymmetry originating from meson oscillations in the $B^0_{d/s}$ and $K^0$ systems. To this end, we explicitly calculate all corresponding contributions from $R$-parity violating operators at the one-l
Externí odkaz:
http://arxiv.org/abs/1810.08228
Autor:
Bechtle, Philip, Desch, Klaus, Dreiner, Herbert K., Hamer, Matthias, Krämer, Michael, O'Leary, Ben, Porod, Werner, Sarrazin, Björn, Stefaniak, Tim, Uhlenbrock, Mathias, Wienemann, Peter
Constrained supersymmetric models like the CMSSM might look less attractive nowadays because of fine tuning arguments. They also might look less probable in terms of Bayesian statistics. The question how well the model under study describes the data,
Externí odkaz:
http://arxiv.org/abs/1410.6035
Publikováno v:
Phys. Rev. D 89, 105015 (2014)
Theories with dark forces and dark sectors are of interest for dark matter models. In this paper we find the region in parameter space that is constrained by supernova cooling constraints when the models include dark sector particles with masses arou
Externí odkaz:
http://arxiv.org/abs/1310.3826
Autor:
Bechtle, Philip, Desch, Klaus, Dreiner, Herbert K., Hamer, Matthias, Krämer, Michael, O'Leary, Ben, Porod, Werner, Prudent, Xavier, Sarrazin, Björn, Stefaniak, Tim, Uhlenbrock, Mathias, Wienemann, Peter
We present preliminary results from the latest global fit analysis of the constrained minimal supersymmetric standard model (CMSSM) performed within the Fittino framework. The fit includes low-energy and astrophysical observables as well as collider
Externí odkaz:
http://arxiv.org/abs/1310.3045