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Posts Tagged ‘Daya Bay Neutrino Experiment’

This story first appeared as a press release on Interactions.org, issued by Brookhaven National Laboratory, the Institute of High Energy Physics, and Lawrence Berkeley National Laboratory. For the full version and contact information, go here.

The Daya Bay Reactor Neutrino Experiment has begun its quest to answer some of the most puzzling questions about the elusive elementary particles known as neutrinos. The experiment’s first completed set of twin detectors is now recording interactions of antineutrinos (antipartners of neutrinos) as they travel away from the powerful reactors of the China Guangdong Nuclear Power Group in southern China.

Neutrinos are uncharged particles produced in nuclear reactions, such as in the sun, by cosmic rays, and in nuclear power plants. They come in three types or “flavors” — electron, muon, and tau neutrinos — that morph, or oscillate, from one form to another, interacting hardly at all as they travel through space and matter, including people, buildings, and planets like Earth.

The start-up of the Daya Bay experiment marks the first step in the international effort of the Daya Bay Collaboration to measure a crucial quantity related to the third type of oscillation, in which the electron-flavored neutrinos morph into the other two flavored neutrinos. (more…)

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“Hello” from Brookhaven National Laboratory, the land of quarks, nanoparticles, proteins, superconductors, and lots of deer and wild turkeys. We’re really excited to be a part of this new version of Quantum Diaries along with our friends from CERN, Fermilab, and TRIUMF. Through this blog, we’ll focus on one very important piece of Brookhaven’s multidisciplinary research portfolio: physics.

The independent discovery of the J/psi by Samuel Ting (front) of the Massachusetts Institute of Technology, at BNL's Alternating Gradient Synchrotron, and by Burton Richter, of the Stanford Linear Accelerator Center, earned its co-discoverers the 1976 Nobel Prize in physics. Shown with Ting in this photo are members of his experimental team.

From its early history, Brookhaven Lab has played a leading role in the exploration of matter and the early universe through groundbreaking nuclear and particle physics experiments. In fact, five of the Lab’s seven Nobel Prizes were awarded for physics research.

Today, Brookhaven continues this leadership role through several large-scale facilities on our site and around the world. At the Relativistic Heavy Ion Collider (RHIC), a 2.4-mile particle racetrack, scientists collide beams of “heavy ions” – the nuclei of atoms as heavy as gold – to replicate conditions microseconds after the Big Bang. This research has led to a series of stunning discoveries, including quark-gluon plasma, a “perfect”-liquid state of matter that permeated the early universe.  In addition to colliding heavy ions, RHIC is able to collide single protons to reveal details about a puzzling property called “spin.”

(more…)

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