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A strategy for a general search for new phenomena using data-derived signal regions and its application within the ATLAS experiment

This paper describes a strategy for a general search used by the ATLAS Collaboration to find potential indications of new physics. Events are classified according to their final state into many event ...  3. These validation distributions rely on inclusive selections to probe the general agreement between data and simulation and are evaluated in restricted ranges where large new-physics contributions

Two-dimensional delta potential wells and condensed-matter physics

, UNAM Apartado Postal 70-360, 04510 México, D.F., México. b Instituto de Física, UNAM, Apartado Postal 20-364 01000 México, D.F., México. c Department of Physics, Washington University St. Louis ... neutral-fermion superfluids such as ultra-cold trapped Fermi gases. Keywords: Delta potential wells; bound states; regularization; condensed-matter physics.   Resumen Es bien sabido que un pozo de

New physics from high energy tops

Abstract Precision measurements of high energy top quarks at the LHC constitute a powerful probe of new physics. We study the effect of four fermion operators involving two tops and two light quarks

Foundation-phase children's causal reasoning in astronomy, biology, chemistry and physics

spontaneous development, based on some ad hoc instruction. Some concepts from biology are taught in the foundation phase, but very few concepts from chemistry, physics or astronomy are included in the general ... of Basic Education 2011). Topics from the domains of biology, chemistry, physics and astronomy are therefore formally taught in this phase, expecting children to learn through language, pictures and

JUNIPR: a framework for unsupervised machine learning in particle physics

In applications of machine learning to particle physics, a persistent challenge is how to go beyond discrimination to learn about the underlying physics. To this end, a powerful tool would be a ... predictivity for a broad class of observables, but more rigorous testing is needed to determine whether this approach can provide state-of-the-art results on the most pressing physics problems. The general

Physics Is Its History

First Online: 10 December 2018 298 Downloads Here is a radical view: in the final analysis, physics cannot be separated from “the history of physics.” Physics is its history. This claim ... way forward. But knowing how the process of inheritance constrains that path is often key to overcoming otherwise insurmountable obstacles. Furthermore, history of physics cannot be understood without

Physics or biology? Persistent chlorophyll accumulation in a shallow coastal sea explained by pathogens and carnivorous grazing

. Previous modeling studies in general succeeded in reproducing climatological trends but often showed a decreasing skill from physical, chemical towards biological variables and also from offshore regions to ... in carnivory and (2) viral dynamics on ecosystem states in a shallow shelf system in general and the CHL accumulation in particular. The study area is the Southern North Sea (SNS), characterized by

Interaction between Students’ Motivation and Physics Teachers’ Characteristics: Multiple Case Study

This study identified the process of interaction between students’ motivation and characteristics of two physics teachers: one who exhibited effective physics teacher characteristics frequently and ... difficulty in solving the problems. Students, in general, resisted the teacher?s behaviors or characteristics when the teachers exhibited inconsistent behaviors. Keywords: Physics Education, Teacher

Statistical models with uncertain error parameters

In a statistical analysis in Particle Physics, nuisance parameters can be introduced to take into account various types of systematic uncertainties. The best estimate of such a parameter is often ... Statistical Issues for LHC Physics (PHYSTAT 2007), ed. by L. Lyons, H.B. Prosper, A. De Roeck (CERN, Geneva, 2007), p. 23. 16. D.N. Lawley, A general method for

General modified Friedmann equations in Rainbow flat universe, by thermodynamics

general sufficient to obtain the equations in flat FRW metrics. ... Einstein equations using a thermodynamic approach. As general relativity (GR) equations lead to Friedmann equations (FEs), the approach was adopted [2] in a cosmological setup to reach the FEs in general

Fracturas mandibulares en el hospital universitario "General Calixto García

describing the frequent of the mandibles fractures in the Maxillofacial Surgery's service at the University Hospital General Calixto García. Material and methods: it came true a prospective study, descriptive ... CIENCIAS QUIRÚRGICAS   Universidad de Ciencias Médicas de La Habana Facultad de Ciencias Médicas "General Calixto García" Facultad de Estomatología "Raúl González Sánchez

Taller de Física Cuántica: un Método para Introducir Conceptos Fundamentales en una Actividad Extracurricular

of quantum physics is proposed and analyzed. The methodology is designed to be developed in an extra-curricular workshop program considering the minimum contents of quantum mechanics established by the

Panorama general y programas de protección de seguridad alimentaria en México

cuentan con condiciones de seguridad alimentaria, prevaleciendo enfermedades infecciosas diarreicas y respiratorias agudas.(6)   DESARROLLO Panorama general de salud alimentaria en México A nivel ... obtención del panorama general de estado de seguridad alimentaria en México se acudió a la Encuesta Nacional de Salud y Nutrición (ENSANUT 2012), la cual permite conocer la cantidad de niños en edad escolar

Federalism, bicameralism, and institutional change: general trends and one case-study

strategic decision to abstain or simply not show up, since it critically depends on the issue under examination. However, it makes it more difficult to establish a general rule for comparing roll-call votes

Unitarity and CP violation in leptogenesis at NLO: general considerations and top Yukawa contributions

affiliations J. Racker Open Access Regular Article - Theoretical Physics First Online: 07 February 2019 9 Downloads Abstract With an emphasis on unitarity and CPT requirements, we study the

La física en la Expedición Malaspina (1789-1794): ideología, práctica y experimentación

Is traditionally held that physics is the science that studies the states of matter and attempting to make rational explanations of natural phenomena by using complex mathematical equations. However ... sense, physics in the Hispanic committee took a turn type ideological, practical and theoretical-experimental. The first is given by the bond of physics aspects of political, civilizational and national

Ulcerative lesions of the mouth: an update for the general medical practitioner

described in this paper. The aim of this review is to provide a focus on ulcerative disorders, either of general clinical significance, or relevant to gastroenterology. Oral ulcers of traumatic (physical

Una Estrategia para el Aprendizaje de la Cultura Científica

The aim of this study is to identify the formative needs of physics and mathematics students of the Escuela Superior de Física y Matemática of the Insituto Politécnico Nacional in México, for the ... México, para el aprendizaje de la cultura científica. Para ello se utiliza como eje la competencia investigativa. El artículo parte con una reflexión acerca de lo que es la cultura en general, y lo que es

Some remarks on wave solutions in general relativity theory

This paper reviews the concept of pp-waves and plane waves in classical general relativity theory. The first four sections give discussions of some algebraic constructions and symmetry concepts which ... gravitational radiation theory. Phys. Rev. 105, 1089–1099 (1957)MathSciNetCrossRefGoogle Scholar 25. Pirani, F.A.E.: Lectures on General Relativity. Brandeis Summer Institute in Theoretical Physics 1, 249–373