Estimates of Long-distance Contributions to the Bs→γγB_s \to \gamma \gamma Decay

We present first calculations of new long-distance contributions to $B_s \to \gamma \gamma$ decay due to intermediate $D_s$ and $D_s^*$ meson states. The relevant $\gamma$ vertices are estimated using charge couplings and transition moment couplings. Within our uncertainties, we find that these long-distance contributions could be comparable to the known short-distance contributions. Since they have different Cabibbo-Kobayashi-Maskawa matrix-element factors, there may be an interesting possibility of observing CP violation in this decay.Comment: 9 pages, 2 figures (embedded), all style files include

Origin and reduction of wakefields in photonic crystal accelerator cavities

Photonic crystal (PhC) defect cavities that support an accelerating mode tend to trap unwanted higher-order modes (HOMs) corresponding to zero-group-velocity PhC lattice modes at the top of the bandgap. The effect is explained quite generally from photonic band and perturbation theoretical arguments. Transverse wakefields resulting from this effect are observed in a hybrid dielectric PhC accelerating cavity based on a triangular lattice of sapphire rods. These wakefields are, on average, an order of magnitude higher than those in the waveguide-damped Compact Linear Collider (CLIC) copper cavities. The avoidance of translational symmetry (and, thus, the bandgap concept) can dramatically improve HOM damping in PhC-based structures.Comment: 11 pages, 18 figures, 2 table

The treatment of the unadjusted child within the controlled environment of Children's Village

Thesis (M.S.)--Boston University, 1947. This item was digitized by the Internet Archive

A Study of OMOIΩMA in Romans 6:5

It is the purpose of this paper to review some of the answers that theologians have proposed to these questions. A further objective, on the basis of the proposed solutions to the problem, is an attempt to formulate a statement of what St. Paul did mean by this word (if this is possible!),and then to suggest some further areas of study which appear’ essential for a satisfactory determination of the meaning and force of ὄμοίωμα

To Tweet or Not toTweet: That Is the Professional Social Media Question

As university and corporate programs continue to encourage their professional faculty to post on social media as a means of spreading positive publicity, the consequences that follow social media by employees must also be inspected. This study focuses on appraising the opinion of professionals in regards to social media posts and the perceived responsibility for maintaining ethical content while posting on the web. To do this, a survey was distributed and the resulting data collected. The data shed light on the climate surrounding social media use and workplace expectations for it, as well as the degree of responsibility assumed by both employee and employer. In this paper, I use the survey results to draw conclusions which will assist employer organizations in developing and sustaining beneficial social media conduct policies, which promote productivity and inclusiveness within the work environment