Iftah Galon

Flavored Gauge Mediation, A Heavy Higgs, and Supersymmetric Alignment

A bstractWe show that the messenger-matter couplings of Flavored Gauge Mediation Models can generate substantial stop mixing and new contributions to the stop masses, leading to Higgs masses around 126 GeV with sub-TeV superpartners, and with some colored superpartners around 1-2 TeV in parts of the parameter space. We study the spectra of a few examples with a single messenger pair coupling dominantly to the top, for different messenger scales. Flavor constraints in these models are obeyed by virtue of supersymmetric alignment: the same flavor symmetry that explains fermion masses dictates the structure of the matter-messenger couplings, and this structure is inherited by the soft terms. We present the leading 1-loop and 2-loop contributions to the soft terms for general coupling matrices in generation space. Because of the Higgs-messenger mixing induced by the new couplings, the calculation of these soft terms via analytic continuation requires careful matching of the high- and low-energy theories. We discuss the calculation in detail in the appendix.

Non-Degenerate Squarks from Flavored Gauge Mediation

A bstractWe study the squark spectra of Flavored Gauge Mediation Models, in which messenger-matter uperpotential couplings generate new, generation-dependent contributions to the squark masses. The new couplings are controlled by the same flavor symmetry that explains the fermion masses, leading to excellent alignment of the quark and squark mass matrices. This allows for large squark mass splittings consistent with all flavor bounds. In particular, second-generation squarks are often significantly lighter than the first-generation squarks. As squark production at the LHC is dominated by the up- and down-squarks and the efficiencies for squark searches increase with their masses, the charm and/or strange squark masses can be well below the current LHC bounds. At the same time, even with a single set of messengers, the models can generate large stop mixings which result in large loop contributions to the Higgs mass.

Particle physics models for the 17 MeV anomaly in beryllium nuclear decays

The

Measuring slepton masses and mixings at the LHC

6.8\ensuremath{\sigma}

Charged slepton flavor post the 8 TeV LHC: a simplified model analysis of low-energy constraints and LHC SUSY searches

anomaly in excited

Kinematic edges with flavor splitting and mixing

^{8}\mathrm{Be}

SPICE: Simulation Package for Including Flavor in Collider Events☆

nuclear decays via internal pair creation is fit well by a new particle interpretation. In a previous analysis, we showed that a 17 MeV protophobic gauge boson provides a particle physics explanation of the anomaly consistent with all existing constraints. Here we begin with a review of the physics of internal pair creation in

Gluino Meets Flavored Naturalness

^{8}\mathrm{Be}

Three-body decays of sleptons with general flavor violation and left-right mixing

decays and the characteristics of the observed anomaly. To develop its particle interpretation, we provide an effective operator analysis for excited

Lepton-flavor violating mediators

^{8}\mathrm{Be}