Mirror World at the Large Hadron Collider

A mirror world can modify in a striking way the LHC signals of the Higgs sector. An exact or approximate Z_2 symmetry between the mirror world and our world allows large mixing between the Higgs bosons of these worlds, leading to production rates and branching ratios for these states that are markedly different from the standard model and are characteristic of a mirror world. The constraints on these Higgs boson masses from precision electroweak data differ from the standard model bound, so that the new physics that cancels the quadratic divergence induced by the top quark may appear at a larger scale, possibly beyond the reach of the LHC. However, the scale of new physics needed to cancel the quadratic divergence induced by the Higgs boson is not significantly changed. With small breakings of the Z_2 parity, the lightest mirror quarks (and possibly charged mirror leptons) could be the dark matter in the universe, forming galactic halos that are stable to cooling. A possible signal from the relic radiation density of the mirror world is also discussed.Comment: 15 pages, 1 figur

Large-N estimates of universal amplitudes of the CP^{N-1} theory and comparison with the JQ model

We present computations of certain finite-size scaling functions and universal amplitude ratios in the large-N limit of the CP^{N-1} field theory. We pay particular attention to the uniform susceptibility, the spin stiffness and the specific heat. Field theoretic arguments have shown that the long-wavelength description of the phase transition between the Neel and valence bond solid states in square lattice S=1/2 anti-ferromagnets is expected to be the non-compact CP^1 field theory. We provide a detailed comparison between our field theoretic calculations and quantum Monte Carlo data close to the Neel -VBS transition on a S=1/2 square-lattice model with competing four-spin interactions (the JQ model).Comment: 15 page

Grace and Courtesy in Living with Conflict in the Montessori Children’s House

The purpose of this research was to determine in what ways increased role-play lessons of grace and courtesy affected conflict resolution in an early childhood classroom. This research study was conducted at a private Montessori school in a midwestern metropolitan area. The sixweek study was completed in a classroom with 29 children, ranging in age from thirty-three months to six years old. During the study, data was collected on the number of conflicts and grace and courtesy lessons. Data was also collected on levels of cooperation and use of respectful language among children, as observed and reflected on, by the adult. Results showed that increased grace and courtesy lessons correlated to the decrease in number of conflicts during the intervention, and children were noted using grace and courtesy lesson language in their interactions. Further study could include grace and courtesy lessons directed to specific reasons for conflict per classroom

Alien Registration- Gregoire, Adonias J. (Sanford, York County)

https://digitalmaine.com/alien_docs/3592/thumbnail.jp