Single superpartner production at Tevatron Run II

We study the single productions of supersymmetric particles at Tevatron Run II which occur in the $2 \to 2-body$ processes involving R-parity violating couplings of type \l'_{ijk} L_i Q_j D_k^c. We focus on the single gaugino productions which receive contributions from the resonant slepton productions. We first calculate the amplitudes of the single gaugino productions. Then we perform analyses of the single gaugino productions based on the three charged leptons and like sign dilepton signatures. These analyses allow to probe supersymmetric particles masses beyond the present experimental limits, and many of the \l'_{ijk} coupling constants down to values smaller than the low-energy bounds. Finally, we show that the studies of the single gaugino productions offer the opportunity to reconstruct the $\tilde \chi^0_1$, $\tilde \chi^{\pm}_1$, $\tilde \nu_L$ and $\tilde l^{\pm}_L$ masses with a good accuracy in a model independent way.Comment: 47 pages, epsfi

Soft Gluon Resummation Effects in Single Slepton Production at Hadron Colliders

We investigate QCD effects in the production of a single slepton at hadron colliders in the Minimal Supersymmetric Standard Model without R-parity. We calculate the total cross sections and the transverse momentum distributions at next-to-leading order in QCD. The NLO corrections enhance the total cross sections and decrease the dependence of the total cross sections on the factorization and renormalization scales. For the differential cross sections, we resum all order soft gluon effects to give reliable predictions for the transverse momentum distributions. We also compare two approaches to the non-perturbative parametrization and found that the results are slightly different at the Tevatron and are in good agreement at the LHC. Our results can be useful to the simulation of the events and to the future collider experiments.Comment: 26 pages, 12 figures, RevTeX4; Minor changes; Version to appear in PR

Real-Time Rendering of Glinty Appearances using Distributed Binomial Laws on Anisotropic Grids

In this work, we render in real-time glittery materials caused by discrete flakes on the surface. To achieve this, one has to count the number of flakes reflecting the light towards the camera within every texel covered by a given pixel footprint. To do so, we derive a counting method for arbitrary footprints that, unlike previous work, outputs the correct statistics. We combine this counting method with an anisotropic parameterization of the texture space that reduces the number of texels falling under a pixel footprint. This allows our method to run with both stable performance and 1.5X to 5X faster than the state-of-the-art.Comment: 9 page

Top quark anomalous couplings at the high-luminosity phase of the LHC

The combination of the latest and most precise measurements of several top quark properties is presented in this paper in order to establish allowed regions on anomalous contributions to the Lorentz structure of the Wtb vertex. These measurements include single top production cross-sections, W boson helicity fractions and forward–backward asymmetries, both at Tevatron and at the Large Hadron Collider (LHC), up to a center-of-mass energy of 13 TeV. The results obtained at 95% Confidence Level (CL) for the top quark anomalous couplings are compared with the limits extracted from a combination that includes the expected measurements at the future High-Luminosity run of the LHC.The authors would like to thank the Center for The-oretical Physics of the Physics Department at the NewYork City College of Technology, City University of New York, for providing computing power from their High-Performance Computing Cluster. This work was sup-ported by the PSC-CUNY Award 61085-00 49 and by the contract SFRH/BSAB/139747/2018 from Fundação para a Ciência e Tecnologia (FCT).info:eu-repo/semantics/publishedVersio

New limits on anomalous contributions to the Wtb vertex

The authors would like to thank the Center for Theoretical Physics of the Physics Department at the New York City College of Technology, for providing computing power from their High-Performance Computing Cluster. The work of M.C.N. Fiolhais was supported by FCT Grant No. SFRH/BPD/100379/2014. The work of C. M. Pease was partly supported by Macaulay Honors College. The authors would also like to thank Juan Antonio Aguilar-Saavedra and Nuno F. Castro for a long time collaboration.The latest and most precise top quark measurements at the LHC and Tevatron are used to establish new limits on the Wtb vertex. Recent results on the measurements of the W-boson helicity fractions and single top quark production cross section are combined in order to establish new limits at 95% CL (confidence level). The allowed regions for these limits are presented, for the first time, in three-dimensional graphics, for both real and imaginary components of the different anomalous couplings, providing a new perspective on the impact of the combination of different physics observables. These results are also combined with the prospected future measurement of the single top quark production cross section and W-boson helicity fractions at the LHC.The authors would like to thank the Center for Theoretical Physics of the Physics Department at the New York City College of Technology, for providing computing power from their High-Performance Computing Cluster. The work of M.C.N. Fiolhais was supported by FCT Grant No. SFRH/BPD/100379/2014. TheworkofC.M.PeasewaspartlysupportedbyMacaulay Honors College. The authors would also like to thank Juan Antonio Aguilar-Saavedra and Nuno F. Castro for a long time collaboration

Cumplimiento del objetivo estratégico sectorial en infraestructura educativa en la I.E. Nº 1211 José María Arguedas Altamirano, Santa Anita, 2021

La presente investigación titulada “Cumplimiento del objetivo estratégico sectorial en infraestructura educativa en la I.E. Nº 1211 José María Arguedas Altamirano, Santa Anita, 2021”; tiene por objetivo establecer cuál es el nivel de cumplimiento del objetivo estratégico sectorial en infraestructura educativa en la I.E. Nº1211 “José María Arguedas Altamirano”, Santa Anita, 2021. La metodología aplicada es de enfoque cuantitativo, del tipo básica en vista que está orientada al conocimiento de la realidad tal y como se presenta en una situación espacio temporal dada, adquiriendo información y teorización de la variable para ampliar el cuerpo de conocimientos existentes hasta el momento sobre dicha variable; la muestra ha estado conformada por 40 integrantes del personal de la institución educativa en estudio y se utilizó la técnica de encuesta y se aplicó un cuestionario de 26 ítem. Los resultados obtenidos indican: el 40% del personal de la institución educativa considera que el cumplimiento del objetivo estratégico sectorial en infraestructura educativa se encuentra en un nivel bajo y un 60% considera que se encuentra en un nivel medio. Considerando estos resultados se concluye que el objetivo estratégico sectorial en infraestructura educativa en la I.E. Nº1211 José María Arguedas Altamirano se encuentra en un nivel medio de cumplimiento

Nivel de conocimiento de la sexualidad en estudiantes de quinto grado del nivel secundaria de la Institución Educativa N° 1212 “Grumete Medina”- Ate Vitarte, 2015

La presente investigación titulada: “Nivel de conocimiento de la sexualidad en estudiantes de quinto grado del nivel secundaria de la Institución Educativa N°1212 “Grumete Medina”, Ate Vitarte, 2015” está centrada en determinar ¿Cuál es el nivel de conocimiento de la sexualidad en estudiantes de quinto grado del nivel secundaria de la Institución Educativa N° 1212 “Grumete Medina”, Ate Vitarte, 2015? En cuanto a la metodología es de tipo básica en vista que está orientada al conocimiento de la realidad tal y como se presenta en una situación espacio temporal dada, adquiriendo información y teorización de la variable para ampliar el cuerpo de conocimientos existentes hasta el momento sobre dicha variable; la muestra ha estado conformada por 40 estudiantes del quinto grado “A” y “B” de nivel secundaria de la Institución Educativa N° 1212 “Grumete Medina”, Ate Vitarte, y como instrumento se utilizó el cuestionario aplicado con un número de 24 ítem sobre la variable sexualidad. Entre los resultados obtenidos, se encontró lo siguiente: 42.5% de estudiantes tienen un nivel bajo de conocimientos de sexualidad, otro 42.5% tiene un nivel medio, y sólo el 15% tiene un nivel alto de conocimiento de sexualidad. La conclusión que se pueden señalar teniendo en cuenta estos resultados, es que un porcentaje significativo de estudiantes de quinto grado del nivel secundaria de la de la Institución Educativa N° 1212 “Grumete Medina”, Ate Vitarte, tienen un nivel medio – bajo sobre conocimientos de sexualidad