2007/02/28 by Amand Faessler, Thomas Gutsche, Juan Carlos Helo +3 · 1 citation
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.75.074029
published as Phys.Rev.D75:074029,2007 · 7 pages, 1 figure, accepted for publication in Phys. Rev. D
arxiv created 2007/04/11 · openalex publication_date 2007/04/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We examine the possible resolution of the recently observed polarization anomaly in B0(B0)\ensuremath→\ensuremathφK*0(K*0)-decay within R-parity violating (\mathrmR\ensuremath\llap\not p) SUSY. We show that a combination of the superpotential trilinear \mathrmR\ensuremath\llap\not p-interactions, with the couplings \ensuremathλ^\ensuremath', and the soft SUSY breaking bilinear \mathrmR\ensuremath\llap\not p sneutrino-Higgs mixing, proportional to \stackrel\texttildelow\ensuremathμ2, can potentially generate the effective operators with the chirality structure necessary to account for this anomaly. However, we demonstrate that the existing experimental data on Bs\ensuremath→\ensuremathμ+\ensuremathμ^\ensuremath--decay lead to stringent upper limits on the Wilson coefficients of these operators, which are about 2 orders of magnitude below the values required for the resolution of the B-decay polarization anomaly, and, therefore, it can hardly be explained within the \mathrmR\ensuremath\llap\not p SUSY framework. As a byproduct result of our analysis we derive new limits on the products of the soft bilinear and the superpotential trilinear \mathrmR\ensuremath\llap\not p-parameters of the form \stackrel\texttildelow\ensuremathμ2\ensuremathλ^\ensuremath'.