Results 111 to 120 of about 64,447 (308)
Anomaly-free dark matter models are not so simple
Journal of High Energy Physics, 2017 We explore the anomaly-cancellation constraints on simplified dark matter (DM) models with an extra U(1)′ gauge boson Z ′. We show that, if the Standard Model (SM) fermions are supplemented by a single DM fermion χ that is a singlet of the SM gauge group,
John Ellis +2 more
doaj +1 more source
A Dislocation Perspective on Strength and Toughness in Ceramics
Advanced Engineering Materials, EarlyView.Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley +1 more source
A grand-unified Nelson–Barr model
European Physical Journal C: Particles and Fields, 2018 We argue that the Nelson–Barr solution to the Strong CP Problem can be naturally realized in an E$$_6$$ 6 grand-unified theory. The chiral SM fermions reside in three generations of E$$_6$$ 6 fundamentals together with heavy vectorlike down quarks ...
Jakob Schwichtenberg +2 more
doaj +1 more source
Theoretical Particle Physics Research Program
, 2015 This is the final technical report for DOE grant DE-FG02-13ER41997. It contains a brief description of accomplishments: research project that were completed during the period of the grant, research project that were started during the period of the grant, and service to the scientific community.
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan +4 more
wiley +1 more source
The Strong and Weak Senses of Theory-Ladenness of Experimentation: Theory-Driven versus Exploratory Experiments in the History of High-Energy Particle Physics [PDF]
, 2012 In the theory-dominated view of scientific experimentation, all relations of theory and experiment are taken on a par; namely, that experiments are performed solely to ascertain the conclusions of scientific theories.
Karaca, Koray
core
Foundations of nuclear and particle physics
, 2017 This textbook brings together nuclear and particle physics, presenting a balanced overview of both fields as well as the interplay between the two.
T. William Donnelly +9 more
core +1 more source
Research in theoretical and elementary particle physics
, 1996 In 1995 the University of Florida started a major expansion of the High Energy Experimental Physics group (HEE) with the goal of adding four new faculty level positions to the group in two years. This proposal covers the second year of operation of the new group and gives a projection of the planned research program for the next five years, when the ...
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş +2 more
wiley +1 more source