CP asymmetry in B --> phi K_S decays in left-right models and its implications on B_s decays

In left-right models the gluonic penguin contribution to b --> s s-bar s transition is enhanced by m_t/m_b due to the presence of (V+A) currents and by the larger values of loop functions than in the Standard Model. Together those may completely overcome the suppression due to small left-right mixing angle xi phi K_S decay amplitude appearing in a large class of left-right models may therefore modify the time dependent CP asymmetry in this decay mode by O(1) and explain the recent BaBar and Belle CP asymmetry measurements in this channel. This new physics scenario implies observable deviations from the Standard Model also in B_s decays which could be measured at upcoming Tevatron and LHC.Comment: references adde

Tax Evasion in a Transition from Socialism to Capitalism: The Psychology of the Social Contract

In a common assumption of the economics of tax evasion, extending beyond the basic Allingham-Sandmo model, the choice of a taxpayer to evade taxes depends upon the perceived fairness of the tax system. The purpose of the paper is to provide a psychological foundation for this assumption by drawing on Hayek’s theory of human behavior as a process of rule following. According to the main hypothesis, taxpayers are more compliant with tax laws to which they can in principle give their full consent. A social contract as a basis of tax policy may provide a potent means to combat tax evasion particularly in transition economies that have inherited a deep mistrust of the government from their socialist past.tax evasion; social contract; economics of psychology; transition economies; Austrian economics

Quasisymmetric Koebe uniformization with weak metric doubling measures

We give a characterization of metric spaces quasisymmetrically equivalent to a finitely connected circle domain. This result generalizes the uniformization of Ahlfors 2-regular spaces by Merenkov and Wildrick

Neutrino Mass, Muon Anomalous Magnetic Moment, and Lepton Flavor Nonconservation

If the generating mechanism for neutrino mass is to account for both the newly observed muon anomalous magnetic moment as well as the present experimental bounds on lepton flavor nonconservation, then the neutrino mass matrix should be almost degenerate and the underlying physics be observable at future colliders. We illustrate this assertion in two specific examples, and show that $\Gamma (\mu \to e \gamma)/m_\mu^5$, $\Gamma (\tau \to e \gamma)/m_\tau^5$, and $\Gamma (\tau \to \mu \gamma) /m_\tau^5$ are in the ratio $(\Delta m^2)_{sol}^2/2$, $(\Delta m^2)_{sol}^2 /2$, and $(\Delta m^2)_{atm}^2$ respectively, where the $\Delta m^2$ parameters are those of solar and atmospheric neutrino oscillations and bimaximal mixing has been assumed.Comment: Erratum adde

Hints for a non-standard Higgs boson from the LHC

We reconsider Higgs boson invisible decays into Dark Matter in the light of recent Higgs searches at the LHC. Present hints in the CMS and ATLAS data favor a non-standard Higgs boson with approximately 50% invisible branching ratio, and mass around 143 GeV. This situation can be realized within the simplest thermal scalar singlet Dark Matter model, predicting a Dark Matter mass around 50 GeV and direct detection cross section just below present bound. The present runs of the Xenon100 and LHC experiments can test this possibility.Comment: 6 pages, 2 figures. Final version to appear on PR