A New Tool for the study of the CP-violating NMSSM

Supersymmetric extensions of the Standard Model open up the possibility for new types of CP-violation. We consider the case of the Next-to-Minimal Supersymmetric Standard Model where, beyond the phases from the soft lagrangian, CP-violation could enter the Higgs sector directly at tree-level through complex parameters in the superpotential. We develop a series of Fortran subroutines, cast within the public tool NMSSMTools and allowing for a phenomenological analysis of the CP-violating NMSSM. This new tool performs the computation of the masses and couplings of the various new physics states in this model: leading corrections to the sparticle masses are included; the precision for the Higgs masses and couplings reaches the full one-loop and leading two-loop order. The two-body Higgs and top decays are also attended. We use the public tools HiggsBounds and HiggsSignals to test the Higgs sector. Additional subroutines check the viability of the sparticle spectrum in view of LEP-limits and constrain the phases of the model via a confrontation to the experimentally measured Electric Dipole Moments. These tools will be made publicly available in the near future. In this paper, we detail the workings of our code and illustrate its use via a comparison with existing results. We also consider some consequences of CP-violation for the NMSSM Higgs sector.Comment: 60 pages, 9 figures, updated versio

Decays of a NMSSM CP-odd Higgs in the low-mass region

A popular regime in the NMSSM parameter space involves a light CP-odd Higgs $A_1$. This scenario has consequences for e.g. light singlino Dark Matter annihilating in the $A_1$-funnel. In order to confront the pseudoscalar to experimental limits such as flavour observables, Upsilon decays or Beam-Dump experiments, it is necessary to control the interactions of this particle with hadronic matter and derive the corresponding decays. The partonic description cannot be relied upon for masses close to $m_{A_1}\sim1$GeV and we employ a chiral lagrangian, then extended to a spectator model for somewhat larger masses, to describe the interplay of the CP-odd Higgs with hadrons. Interestingly, a mixing can develop between $A_1$ and neutral pseudoscalar mesons, leading to substantial hadronic decays and a coupling of $A_1$ to the chiral anomaly. Additionally, quartic $A_1$-meson couplings induce tri-meson decays of the Higgs pseudoscalar. We investigate these effects and propose an estimate of the Higgs widths for masses below $m_{A_1}\leq3$GeV. While we focus on the case of the NMSSM, our results are applicable to a large class of models.Comment: 23 pages, 9 figures, published versio

\u3cem\u3eYeaton and Others, Claimants of the Schooner General Pinkney and Cargo v. The United States\u3c/em\u3e: The Case, the History, and the Impact

On February 28, 1806 Congress passed an embargo against any part of St. Domingo not in possession by the French Government. There was much debate regarding the embargo and the international politics regarding the Haitian Revolution. On August 23, 1806 the Schooner General Pinkney, owned by William Yeaton set sail from the port of Alexandria for St. Jago de Cuba, but instead went to the prohibited port of Cape Francois, St. Domingo. In addition to this ship, another ship owned by William Yeaton, the Schooner Betsey and Charlotte also took the same course on September 23, 1806. Both were held in violation of the embargo, but only the Betsey and Charlotte was condemned. This paper will examine the history behind the embargo, the cases of the General Pinkney and the Betsey and Charlotte, and the effects the General Pinkney had on America’s legal field

Update of the flavour-physics constraints in the NMSSM

We consider the impact of several flavour-changing observables in the $B$- and the Kaon sectors on the parameter space of the NMSSM, in a minimal flavour violating version of this model. Our purpose consists in updating our previous results in arXiv:0710.3714 and designing an up-to-date flavour test for the public package NMSSMTools. We provide details concerning our implementation of the constraints in a series of brief reviews of the current status of the considered channels. Finally, we present a few consequences of these flavour constraints for the NMSSM, turning to two specific scenarios: one is characteristic of the MSSM-limit and illustrates the workings of charged-Higgs and genuinely supersymmetric contributions to flavour-changing processes; the second focus is a region where a light CP-odd Higgs is present. Strong limits are found whenever an enhancement factor - large $\tan\beta$, light $H^{\pm}$, resonant pseudoscalar - comes into play.Comment: 22 pages, 7 figure

Domingo

With these five stories, the intention is to prompt reflection through description of varied themes and conditions. In some cases, the character's thoughts and words outline the shape of the reflection; in other cases, it is hoped the reader will reflect on what has not quite been said. In "The Doctor" one man's relation to love in his life is described. In "Evolution" the shape of reflection is fanciful, though perhaps not unrelated to trends in modern life. "Domingo" is the Spanish day of rest. The musings of one boy are presented in this story, and in "Life Is Not A Job" the events in the life and thoughts of a very different boy are related. "On the Way to New York" returns to a theme of relationship, though in this story the concern is not love, but kindliness