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New Study Throws Dark Matter Finding Into Question
New Study Throws Dark Matter Finding Into Question | Dark Matter
Detection | Dark Matter Annihilation & Positrons | Space.com http://www.space.com/13775-dark-matt...cial %2Bmedia "The positrons found by PAMELA were thought to be the products of dark matter annihilation with antimatter, and scientists were hopeful that the tantalizing discovery could prove the existence of the elusive dark matter. But a new study has raised more questions about PAMELA's discovery. Researchers at the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) at Stanford University in California confirmed the overabundance of positrons, but when they did not see a sudden drop-off of this excess beyond a certain energy level, they knew something was wrong. "If the antimatter we measure is coming from the annihilation of dark matter particles, then the positron excess should drop off fairly suddenly at an energy level that corresponds with the mass of the dark matter particle," study co-author Stefan Funk, an assistant professor of physics at Stanford University, said in a statement." |
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New Study Throws Dark Matter Finding Into Question
On 11/30/11 11:57 AM, Yousuf Khan wrote:
New Study Throws Dark Matter Finding Into Question | Dark Matter Detection | Dark Matter Annihilation & Positrons | Space.com http://www.space.com/13775-dark-matt...cial %2Bmedia "The positrons found by PAMELA were thought to be the products of dark matter annihilation with antimatter, and scientists were hopeful that the tantalizing discovery could prove the existence of the elusive dark matter. But a new study has raised more questions about PAMELA's discovery. Researchers at the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) at Stanford University in California confirmed the overabundance of positrons, but when they did not see a sudden drop-off of this excess beyond a certain energy level, they knew something was wrong. "If the antimatter we measure is coming from the annihilation of dark matter particles, then the positron excess should drop off fairly suddenly at an energy level that corresponds with the mass of the dark matter particle," study co-author Stefan Funk, an assistant professor of physics at Stanford University, said in a statement." I wouldn't get too exited as there is increasing evidence for dark matter from many independent observations. |
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