where N is the number of selected events, N BG is the number of background events, f ξ < 5 × 10-6 is the fraction of events that pass the event selection but have ξ<5×10 −6, is the integrated ...

Uncertainty affects the accuracy with which measurements can be made in quantum physics. To reduce this uncertainty, physicists have learned to "squeeze" certain measurements. Researchers are now ...

CBSE Class 11 Physics notes on Chapter 2, Units and Measurement (Part 3) are available here. Important topics covered in this part are Accuracy, Precision, Errors of ...

Linear measurement tools are essential for determining the dimensions of an object. These tools provide a way to quantify distance in a straight line. In engineering and physics, getting your ...

Despite its many successes, physicists are still struggling to nail down a coherent interpretation of quantum mechanics, as it best represents “reality”. Jim Baggott explores the arguments first put ...

The Korea Research Institute of Standards and Science (KRISS) announced on the 4th that it has developed a length measurement system with precision at the limit allowed by quantum physics. With ...