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02/01/06

Luminosity

Luminosity is a measure of how many particles are brought together in a certain space over a certain period of time.

02/01/06

Simon Singh: The pop star controversy

It took me years to write my three bestselling books on cosmology, mathematics, and cryptography. Yet I am particularly proud of a 500-word article that I wrote last fall in less than an hour and of the hullabaloo that it caused.

02/01/06

Collimation

In high-energy collisions, luminosity, or beam brightness, isn't the only thing to consider; low background noise at the detectors is also important. When wayward particles bounce around inside detectors, they can mimic real collisions, muddy results, and even damage parts of the collider.

02/01/06

Julian Voss-Andreae: In three dimensions

Unveiling the three-dimensional structure of proteins thrills scientists. While the potential for understanding the folding and function of enzymes is truly exciting by itself, exploring macromolecule structures also satisfies a more fundamental urge: to see the invisible.

02/01/06

Brighter future

Collider luminosity is the key to particle physics discoveries. Fermilab and labs around the world have spared no effort in increasing their collider luminosities.

02/01/06

Quantum Diaries: A year in the life

For 33 particle physicists, the year 2005 was a great experiment in science communication. To support the World Year of Physics, these brave souls had agreed to share their thoughts and their lives with the public, blogging on the Quantum Diaries Web site.

02/01/06

ICFA: The committe behind the future of particle colliders

If the proposed International Linear Collider (ILC) completes the evolution from physicists' dream to discovery machine, Jonathan Dorfan will know when and where the transforming moment occurred: August 20, 2004, in Beijing, China.

02/01/06

GLAST into space

Particle physics detectors in space will record gamma rays in search of dark matter, the evolution of stars, and nature’s most powerful particle accelerators.

02/01/06

Terry Mart: Counting papers

Citation numbers and the Impact Factor of journals are often used to evaluate the quality and the importance of research. Both quantities have some shortcomings, and people using these indicators should know when and when not to use them.

02/01/06

Challenges

Particle physics has been confronted with serious challenges in recent years, especially for the operation of colliders. Yet 2006 promises to be a great year for research in particle physics as well as photon science, and many exciting projects are underway.

01/01/06

Career advice

In response to the letter headed "Careers in particle physics," by Tomo Lazovich (symmetry, October 2005). In the recent book of the letters of Richard P. Feynman, there are many letters asking him for advice such as Mr. Lazovich seeks on pursuing a career in physics.

01/01/06

Particle physics goes to school

Students around the world are familiar with the periodic table of elements, a chart that outlines how protons, neutrons, and electrons form more than 100 different types of atoms.

01/01/06

PANIC trouble

When physicists organized the first Particles and Nuclei International Conference in 1963, nobody thought that the acronym PANIC could cause trouble in getting the word out about the meeting. That was before the now-common use of email.

01/01/06

Slashdotted

When the 10th issue of symmetry magazine came out on October 12, the magazine's Web server crashed unexpectedly. Looking at the Web traffic statistics, the reason became obvious: symmetry had been "slashdotted."

01/01/06

Neutrinos: a gateway to new physics

Nature provides three kinds of neutrinos. In the last ten years, physicists have gathered increasingly strong evidence for neutrino oscillations, the transformation of one kind of neutrino into another one.