Los Alamos National Laboratory Yucca Mountain Site Characterization Project 1995 quality program status report

This status report summarizes the activities and accomplishments of the Los Alamos National Laboratory Yucca Mountain Site Characterization Project`s (YMP`s) quality assurance program for January 1 to September 30, 1995. The report includes major sections on program activities and trend analysis

Los Alamos National Laboratory Yucca Mountain Site Characterization Project 1994 quality program status report

This status report is for calendar year 1994. It summarizes the annual activities and accomplishments of the Los Alamos National Laboratory Yucca Mountain Site Characterization Project (YMP or Project) quality assurance program. By identifying the accomplishments of the quality program, a baseline is established that will assist in decision making, improve administrative controls and predictability, and allow us to annually identify adverse trends and to evaluate improvements. This is the fourth annual status report

Left-Handed W Bosons at the LHC

The production of W bosons in association with jets is an important background to new physics at the LHC. Events in which the W carries large transverse momentum and decays leptonically lead to large missing energy and are of particular importance. We show that the left-handed nature of the W coupling, combined with valence quark domination at a pp machine, leads to a large left-handed polarization for both W^+ and W^- bosons at large transverse momenta. The polarization fractions are very stable with respect to QCD corrections. The leptonic decay of the W bosons translates the common left-handed polarization into a strong asymmetry in transverse momentum distributions between positrons and electrons, and between neutrinos and anti-neutrinos (missing transverse energy). Such asymmetries may provide an effective experimental handle on separating W + jets from top quark production, which exhibits very little asymmetry due to C invariance, and from various types of new physics.Comment: 32 pages, revtex, 17 figures, 3 tables, v2 minor corrections to ME+PS results, no changes to conclusions, added reference

Optical properties of nanocrystal films: blue shifted transitions as signature of strong coupling

We present a theoretical study at the atomistic level of the optical properties of semiconductor nanocrystal films. We investigate the dependence of the absorption coefficient on size, inter-dot separation, surface stoichiometry and morphology, temperature, position of the Fermi level and light polarization. Our results show that, counter-intuitively, huge blue shifts are expected in some intra-band transitions for strongly coupled arrays, in contrast with the predicted and observed red shift of the band gap absorption in such systems. Furthermore, we find that the energies of such transitions can be tuned within a range of several hundreds of meV, just by engineering the inter-dot separation in the film through the choice of appropriately sized capping ligands. Finally we discuss the application of this effect to nanocrystal-based intermediate-band solar cells

Next-to-leading order diphoton+2-jet production at the LHC

We present results from a recent calculation of prompt photon-pair production in association with two jets to next-to-leading order (NLO) at the LHC. The virtual contribution is evaluated using the BlackHat library, a numerical implementation of on-shell methods for one-loop amplitudes, in conjunction with SHERPA. We study four sets of cuts: standard jet cuts, a set of Higgs-related cuts suggested by ATLAS, and corresponding sets which isolate the kinematic region where the process becomes the largest background to Higgs production via vector-boson fusion.Comment: 10 pages, 4 figures, Presented at 11th International Symposium on Radiative Corrections (RADCOR 2013), 22-27 September 2013, Lumley Castle Hotel, Durham, U

Potencial comunicativo del Inti Raymi de la Comuna Tola Chica, Pueblo Kitu Kara, Nacionalidad kichwa - Ecuador

El presente artículo analiza el potencial comunicativo de los códigos y símbolos del “Inti Raymi” de la Comuna Tola Chica, Pueblo Kitu Kara, Nacionalidad Kichwa en el Ecuador, y busca ser un aporte al fortalecimiento comunicativo y cultural de esta comunidad, en el contexto de su interacción local y nacional. El estudio fue guiado por el “Método Vivencial Simbólico Relacional”, en el contexto del CCRISAC, cuya trascendencia tiene expresión en la experiencia y vivencia en y con la comunidad, la recuperación y el re-encanto con el proceso; para signiicar y resigniicar desde la memoria oral la festividad como un legado cultural. Finalmente, se determina el potencial comunicativo de la festividad, destacando la interacción del cabildo comunal desde la planiicación hasta la puesta en marcha de la celebración, con los comuneros; la festividad como punto de encuentro de diversos actores sociales; el potencial de convocatoria y la representatividad de la festividad en el sector