News tagged with positrons

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A Flight Simulator for the World's Smallest Beam

A Flight Simulator for the World's Smallest Beam

Physics / General Physics

created Mar 31, 2009 | popularity 4.7 / 5 (3) | comments 0

(PhysOrg.com) -- Commissioning has begun at the Japan-based Accelerator Test Facility 2, a major technology test bed for future accelerators, including the proposed International Linear Collider, or ILC. During ...


Billions of particles of anti-matter created in laboratory

Billions of particles of anti-matter created in laboratory

Physics / General Physics

created Nov 17, 2008 | popularity 4.9 / 5 (128) | comments 30

(PhysOrg.com) -- Take a gold sample the size of the head of a push pin, shoot a laser through it, and suddenly more than 100 billion particles of anti-matter appear.


Proposed Particle Help Explains Odd Galactic Photons

Physics / General Physics

created Jul 25, 2008 | popularity 4.2 / 5 (74) | comments 19

In 2002, a satellite called INTEGRAL was launched by the European Space Agency with an instrument on board to detect and measure gamma rays from space. Four years later, it yielded some intriguing data: An unusually high ...





Search results for positrons


PAMELA

Has PAMELA Already Seen Dark Matter?

Physics / General Physics

created Aug 25, 2009 | popularity 3.7 / 5 (15) | comments 7

(PhysOrg.com) -- Back in 2006, PAMELA (a Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics) was launched with the purpose of detecting cosmic radiation and looking for clues pointing ...


Integral satellite disproves dark matter origin for mystery radiation

Integral satellite disproves dark matter origin for mystery radiation

Space & Earth / Astronomy

created Jul 22, 2009 | popularity 4.5 / 5 (10) | comments 15

(PhysOrg.com) -- A team of researchers working with data from ESA’s Integral gamma-ray observatory has disproved theories that some form of dark matter explains mysterious radiation in the Milky Way.


Milky Way Galaxy

Physicists on the prowl for dark matter

Physics / General Physics

created Jul 23, 2009 | popularity 3.8 / 5 (33) | comments 89

(PhysOrg.com) -- 95%. That is the percentage of the known Universe that is missing. As in it is not there. Or at least if it is there, we can't see it. We call this unseen stuff "dark matter". That has been ...


Simple Explanation for Mysterious Observations

Physics / General Physics

created Aug 18, 2009 | popularity 4.4 / 5 (13) | comments 5

Recently, several astronomical experiments have revealed mysterious components of elementary particles. But up until now, the origin of electrons and positrons is unknown. Is dark matter the actual origin of this radiation, ...


Astrophysicists solve mystery in Milky Way galaxy

Astrophysicists solve mystery in Milky Way galaxy

Space & Earth / Astronomy

created Jul 09, 2009 | popularity 4.7 / 5 (19) | comments 7

A team of astrophysicists has solved a mystery that led some scientists to speculate that the distribution of certain gamma rays in our Milky Way galaxy was evidence of a form of undetectable "dark matter" ...


Integral discovers the galaxy’s antimatter cloud is lopsided

Integral discovers the galaxy’s antimatter cloud is lopsided

Physics / General Physics

created Jan 09, 2008 | popularity 4.5 / 5 (52) | comments 1

The shape of the mysterious cloud of antimatter in the central regions of the Milky Way has been revealed by ESA’s orbiting gamma-ray observatory Integral. The unexpectedly lopsided shape is a new clue to ...


Fingers, Loops and Bays in the Crab Nebula

Fingers, Loops and Bays in the Crab Nebula

Space & Earth / Astronomy

created Nov 06, 2008 | popularity 4.3 / 5 (12) | comments 8

(PhysOrg.com) -- This image gives the first clear view of the faint boundary of the Crab Nebula's X-ray-emitting pulsar wind nebula. The nebula is powered by a rapidly-rotating, highly-magnetized neutron star, ...


Particles as tracers for the most massive explosions in the Milky Way

Particles as tracers for the most massive explosions in the Milky Way

Space & Earth / Astronomy

created Aug 11, 2009 | popularity 4.8 / 5 (10) | comments 9

Astronomers recently observed a mysterious flux of particles in the universe, and the hope was born that this may be the first observation of the remnants of "dark matter". But scientists from the University ...


A clear separation between dark and ordinary matter during a clash 5.7 billion light years from Earth

Dark matter: Physicists may have found piece of the puzzle

Physics / General Physics

created Apr 01, 2009 | popularity 3.9 / 5 (26) | comments 29

European astronomers said on Wednesday that an anomalous energy signal detected by an orbiting satellite could be a telltale of the enigmatic substance known as dark matter.


Advancing the study of antimatter

Physics / General Physics

created Mar 26, 2008 | popularity 4.4 / 5 (81) | comments 4

“Right now, most physicists would predict that hydrogen and antihydrogen have the same properties,” Gerald Gabrielse tells Physorg.com, “What’s irresistible is that we of the opportunity to – potentially – look for tiny d ...



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