Disentangling Higgs-Top Couplings in Associated Production

In the presence of CP violation, the Higgs-top coupling may have both scalar and pseudoscalar components, $\kappa_t$ and ${\tilde \kappa_t}$, which are bounded indirectly but only weakly by the present experimental constraints on the Higgs-gluon-gluon and Higgs-$\gamma$-$\gamma$ couplings, whereas upper limits on electric dipole moments provide strong additional indirect constraints on ${\tilde \kappa_t}$, if the Higgs-electron coupling is similar to that in the Standard Model and there are no cancellations with other contributions. We discuss methods to measure directly the scalar and pseudoscalar Higgs-top couplings by measurements of Higgs production in association with ${\bar t} t$, single $t$ and single ${\bar t}$ at the LHC. Measurements of the total cross sections are very sensitive to variations in the Higgs-top couplings that are consistent with the present indirect constraints, as are invariant mass distributions in ${\bar t} t H$, $tH$ and ${\bar t} H$ final states. We also investigate the additional information on $\kappa_t$ and ${\tilde \kappa_t}$ that could be obtained from measurements of the longitudinal and transverse $t$ polarization in the different associated production channels, and the ${\bar t} t$ spin correlation in ${\bar t} t H$ events.Comment: 19 pages, 11 figure

A very British international centenary. Performance review of 'Sogni di una note di mezzaestate' by William Shakespeare, Felix Mendelsohn and Benjamin Britten, 7th August 2013, Macerata Opera Festival, Arena Sferisterio

The AHRC network, Translating Music, spent two weeks in Macerata, Italy, working within the Mascerata Opera Festival. These reviews respond to the new productions within the 2013 festival. Resources and publications, including these reviews, are available at http://www.translatingmusic.co

Travelling time and fire. Performance review of 'Il Trovatore' composed by Guiseppe Verdi, 3rd August 2013, Macerata Opera Festival, Arena Sferisterio

The AHRC network, Translating Music, spent two weeks in Macerata, Italy, working within the Mascerata Opera Festival. These reviews respond to the new productions within the 2013 festival. Resources and publications, including these reviews, are available at http://www.translatingmusic.co

My Creole Sue / words by Gussie Davis and Hamilton S. Gordon

Cover: photo of two Caucasian male performers in blackface, one is dressed as a female; sung by Charles E. Foreman with J. H. Haverlys Minstrels. Musical Supplement of the New York Journal and Advertiser, Oct. 9, 1898; Publisher: xhttps://egrove.olemiss.edu/sharris_a/1044/thumbnail.jp

Water and fire: Biblical dimensions of a new production of Nabucco. Performance review of 'Nabucco' composed by Guiseppe Verdi, 2nd August 2013, Macerata Opera Festival, Arena Sferisterio

The AHRC network, Translating Music, spent two weeks in Macerata, Italy, working within the Mascerata Opera Festival. These reviews respond to the new productions within the 2013 festival. Resources and publications, including these reviews, are available at http://www.translatingmusic.co

The Analysis of design and manufacturing tasks using haptic and immersive VR - Some case studies

The use of virtual reality in interactive design and manufacture has been researched extensively but the practical application of this technology in industry is still very much in its infancy. This is surprising as one would have expected that, after some 30 years of research commercial applications of interactive design or manufacturing planning and analysis would be widespread throughout the product design domain. One of the major but less well known advantages of VR technology is that logging the user gives a great deal of rich data which can be used to automatically generate designs or manufacturing instructions, analyse design and manufacturing tasks, map engineering processes and, tentatively, acquire expert knowledge. The authors feel that the benefits of VR in these areas have not been fully disseminated to the wider industrial community and - with the advent of cheaper PC-based VR solutions - perhaps a wider appreciation of the capabilities of this type of technology may encourage companies to adopt VR solutions for some of their product design processes. With this in mind, this paper will describe in detail applications of haptics in assembly demonstrating how user task logging can lead to the analysis of design and manufacturing tasks at a level of detail not previously possible as well as giving usable engineering outputs. The haptic 3D VR study involves the use of a Phantom and 3D system to analyse and compare this technology against real-world user performance. This work demonstrates that the detailed logging of tasks in a virtual environment gives considerable potential for understanding how virtual tasks can be mapped onto their real world equivalent as well as showing how haptic process plans can be generated in a similar manner to the conduit design and assembly planning HMD VR tool reported in PART A. The paper concludes with a view as to how the authors feel that the use of VR systems in product design and manufacturing should evolve in order to enable the industrial adoption of this technology in the future