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Keyword: particlephysics

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  • Experiment Confirms a Crucial Property of Electrons, Unfortunately

    10/11/2017 7:35:44 PM PDT · by MtnClimber · 36 replies
    Gizmodo ^ | 10 Oct, 2017 | Ryan F. Mandelbaum
    When it comes to physics, fewer things are more exciting than proving something wrong. Proving theories wrong has led to entirely new fields of study. The fruits that come from wrongness can be so rewarding that scientists devote a considerable amount of time to probing well-known theories, hoping to find a crack. But a team of JILA physicists at the National Institute of Standards and Technology and the University of Colorado, Boulder is reporting that, once again, the theory was right—specifically, the Standard Model of particle physics and its prediction of just how spherical the distribution of an electron’s charge...

    12/02/2016 7:50:14 PM PST · by MtnClimber · 54 replies
    Universe Today ^ | 1 Dec, 2016 | Matt Williams
    During the 19th and 20th centuries, physicists began to probe deep into the nature of matter and energy. In so doing, they quickly realized that the rules which govern them become increasingly blurry the deeper one goes. Whereas the predominant theory used to be that all matter was made up of indivisible atoms, scientists began to realize that atoms are themselves composed of even smaller particles. From these investigations, the Standard Model of Particle Physics was born. According to this model, all matter in the Universe is composed of two kinds of particles: hadrons – from which Large Hadron Collider...
  • Potential New Particle Shows Up at the LHC, Thrilling and Confounding Physicists

    12/20/2015 12:36:01 PM PST · by 2ndDivisionVet · 28 replies
    Scientific American ^ | December 16, 2015 | Clara Moskowitz
    The gigantic accelerator in Europe has produced hints of an exotic particle that defies the known laws of physics. A little wiggle on a graph, representing just a handful of particles, has set the world of physics abuzz. Scientists at the Large Hadron Collider (LHC) in Switzerland, the largest particle accelerator on Earth, reported yesterday that their machine might have produced a brand new particle not included in the established laws of particle physics known as the Standard Model. Their results, based on the data collected from April to November after the LHC began colliding protons at nearly twice the...
  • Giant 50-foot magnet to make cross-country trek for physics experiment

    05/09/2013 8:57:56 PM PDT · by Daffynition · 59 replies
    UPI ^ | May 9, 2013 | staff reporter
    BROOKHAVEN, N.Y., May 9 (UPI) -- U.S. physicists say they're planning a new experiment in particle physics -- but first there's the small matter of moving a 50-foot-diameter magnet 3,200 miles. Along with colleagues from 26 institutions around the world, they are planning an experiment to study the properties of muons, tiny subatomic particles that exist for only 2.2 millionths of a second. But first the core of the experimental equipment, a complex electromagnet 50 feet in diameter, needs to be moved from the U.S. Department of Energy's Brookhaven National Laboratory in New York to the department's Fermi National Accelerator...
  • Physicists say they have found a Higgs boson

    03/14/2013 5:32:41 AM PDT · by PapaBear3625 · 73 replies
    AP, via Drudge ^ | March 14, 2013 | AP
    GENEVA (AP) - Physicists said Thursday they are now confident they have discovered a crucial subatomic particle known as a Higgs boson - a major discovery that will go a long ways toward helping them explain why the universe is the way it is. They made the statement following study of the data gathered last year from the world's largest atom-smasher, which lies beneath the Swiss-French border outside Geneva. The European Organization for Nuclear Research, or CERN, said that what they found last year was, indeed, a version of what is popularly referred to as the "God particle."
  • At Long Last, Physicists Discover Famed Higgs Boson

    07/12/2012 12:46:07 PM PDT · by neverdem · 35 replies
    ScienceNOW ^ | 4 July 2012 | Adrian Cho
    Enlarge Image Twin peaks. Both the CMS (top) and the ATLAS (bottom) detectors see evidence of the Higgs boson decaying into a pair of photons in the form of a peak in a so-called mass plot. The agreement of the two peaks and other data clinch the discovery of the Higgs. Credit: CMS and ATLAS collaborations MEYRIN, SWITZERLAND—The long wait is over. Today, physicists working with the world's largest atom smasher here at the European particle physics laboratory, CERN, reported that they have discovered the long-sought Higgs boson—the last missing bit in their standard model of fundamental particles and...
  • Cosmic Speed-Up Nabs Nobel Prize

    10/07/2011 9:35:53 PM PDT · by neverdem · 26 replies
    ScienceNOW ^ | 4 October 2011 | Adrian Cho
    Enlarge Image Star power. Saul Perlmutter (left), Brian Schmidt (center), and Adam Riess share this year's Nobel Prize in physics. Credit: LBNL, ANU, JHU Thirteen years ago, two teams of astronomers and physicists independently made the same stark discovery: Not only is the universe expanding like a vast inflating balloon, but its expansion is speeding up. At the time, many scientists expected that the gravitational pull of the galaxies ought to slow down the expansion. Today, researchers from both teams shared the Nobel Prize in physics for that dramatic observation, which has changed the conceptual landscape in cosmology, astronomy,...
  • Antimatter Trapped for Amazingly Long 16 Minutes

    06/05/2011 9:40:13 PM PDT · by NYFreeper · 22 replies
    LiveScience ^ | June 05, 2011 | LiveScience
    Antimatter, an elusive type of matter that's rare in the universe, has now been trapped for more than 16 minutes — an eternity in particle physics. In fact, scientists who've been trapping antihydrogen atoms at the European Organization for Nuclear Research (CERN) in Geneva say isolating the exotic particles has become so routine that they expect to soon begin experiments on this rare substance. Read more:
  • Large Hadron Atom Smasher Reaches Near Speed of Light

    03/31/2010 12:41:00 AM PDT · by ErnstStavroBlofeld · 90 replies · 1,565+ views
    The Daily Galaxy ^ | 3/30/2010 | The Daily Galaxy
    Scientists celebrated at the world's biggest atom smasher at the European Organization for Nuclear Research (CERN) near Geneva on Tuesday as they started colliding particles at record energy levels mimicking conditions close to the Big Bang, opening a new era in the quest for the secrets of the universe. The European Organisation for Nuclear Research (CERN) said it had unleashed the unprecedented bursts of energy on the third attempt, as beams of protons thrust around the 27-kilometre (16.8-mile) accelerator collided at close to the speed of light. "This is physics in the making, the beginning of a new era, we...
  • Particle Weapons 101

    03/29/2010 11:42:23 PM PDT · by ErnstStavroBlofeld · 20 replies · 1,171+ views
    Physics Post ^ | 12/31/2001 | unkown
    WHAT KIND OF BEAM TO USE WANT? There are two types of particle beams; the one used depends on what the weapon is used for, either exoatmospheric or endoatmospheric. Exoatmospheric are in conditions where there is nothing, like space or a vacuum tube. Endoatmospheric are in conditions where an atmosphere exists, like on Earth or orbiting Earth. For exoatmospheric use the beam that exits the weapon must be neutral, have no charge, to prevent beam divergence. Beam divergence happens when a beam of charged particles increases in diameter as it travels through empty space. This is not good. If the...
  • Geneva atom smasher sets record for beam energy

    03/21/2010 2:58:35 AM PDT · by ErnstStavroBlofeld · 11 replies · 410+ views
    AFP via Yahoo News ^ | 3/20/2010 | AFP via Yahoo News
    Operators of the world's largest atom smasher on Friday ramped up their massive machine to three times the energy ever previously achieved, in the run-up to experiments probing the secrets of the universe. The European Organization for Nuclear Research, or CERN, said beams of protons circulated at 3.5 trillion electron volts in both directions around the 27-kilometer (17-mile) tunnel housing the Large Hadron Collider under the Swiss-French border at Geneva. The next major development is expected in a few days when CERN starts colliding the beams in a new round of research to examine the tiniest particles and forces within...
  • Record-breaking collisions (Large Hadron Collider producing more mesons than expected)

    02/05/2010 4:35:52 PM PST · by LibWhacker · 33 replies · 1,040+ views
    MIT News ^ | 2/5/10 | Anne Trafton
    Initial results from high-energy proton collisions at the Large Hadron Collider offer first glimpse of physics at new energy frontier.In December, the Large Hadron Collider, the world’s largest particle accelerator, shattered the world record for highest energy particle collisions. This week, team led by researchers from MIT, CERN and the KFKI Research Institute for Particle and Nuclear Physics in Budapest, Hungary, completed work on the first scientific paper analyzing the results of those collisions. Its findings show that the collisions produced an unexpectedly high number of particles called mesons — a factor that will have to be taken into account...
  • Looking for Life in the Multiverse

    12/18/2009 12:07:14 AM PST · by ErnstStavroBlofeld · 35 replies · 1,339+ views
    Scientific American ^ | 01/01/2010 | Alejandro Jenkins and Gilad Perez
    The typical Hollywood action hero skirts death for a living. Time and again, scores of bad guys shoot at him from multiple directions but miss by a hair. Cars explode just a fraction of a second too late for the fireball to catch him before he finds cover. And friends come to the rescue just before a villain’s knife slits his throat. If any one of those things happened just a little differently, the hero would be hasta la vista, baby. Yet even if we have not seen the movie before, something tells us that he will make it to...
  • Atom smasher catches 1st high-energy collisions (during Large Haldron Collider test runs)

    12/09/2009 9:07:22 PM PST · by NormsRevenge · 21 replies · 975+ views
    AP on Yahoo ^ | 12/9/09 | Alexander G. Higgins - ap
    GENEVA – The world's largest atom smasher has recorded its first high-energy collisions of protons, a spokeswoman said Wednesday. Physicists hope those collisions will help them understand suspected phenomena such as dark matter, antimatter and ultimately the creation of the universe billions of years ago, which many theorize occurred as a massive explosion known as the Big Bang. The collisions occurred Tuesday evening as the Large Haldron Collider underwent test runs in preparation for operations next year, said Christine Sutton of the European Organization for Nuclear Research, or CERN. Two beams of circulating particles traveling in opposite directions at 1.18...
  • Particle imbalance may upset the apple cart - Report hints at the existence of a new and massive...

    09/01/2009 11:08:54 AM PDT · by neverdem · 31 replies · 1,387+ views
    Science News ^ | August 26th, 2009 | Ron Cowen
    Report hints at the existence of a new and massive elementary particle In a weak moment, researchers have found an unexpected asymmetry in particle production that could hint at exotic physics. The tentative evidence, announced August 21, could be the fingerprint of a massive elementary particle that would help unify three of the four known forces in nature. The physicists collected data for nearly a decade at the Belle particle accelerator experiment in Tsukuba, Japan. In the experiment, known as a B factory, beams of electrons and positrons collide to produce millions of pairs of B mesons and anti-B mesons....
  • A lighter Higgs makes particle hunt harder

    03/13/2009 10:04:07 PM PDT · by neverdem · 22 replies · 760+ views
    Nature News ^ | 13 March 2009 | Eric Hand
    Longer search promised after physicists exclude heavy masses for the 'God particle'. The Higgs boson particle may be lighter — and the race to find it tougher — than particle physicists had hoped, according to the latest results from the Tevatron particle accelerator at the Fermi National Accelerator Laboratory in Batavia, Illinois.Fermilab is still hunting the Higgs boson.Fermilab On 13 March, scientists there announced that they had ruled out a crucial part of the hunting ground for the 'God particle', thought to confer mass on all other matter.The results suggest that the Higgs boson is not a relatively high-mass particle,...
  • Single top quark detected

    03/13/2009 9:49:17 PM PDT · by neverdem · 20 replies · 787+ views
    Science News ^ | March 10th, 2009 | Solmaz Barazesh
    Same techniques could be used to detect theoretical particles like the Higgs boson Physicists have identified the production of the elusive single top quark, two research teams report. Previously top quarks have been observed only when produced in pairs, as when they were initially discovered 14 years ago at the Fermi National Accelerator Laboratory in Batavia, Ill. Now, researchers using Fermilab’s two detectors announced March 9 that they have detected single top quarks. The techniques used to find the singleton quarks could help to identify other rare particles, such as the Higgs boson, the scientists say. “What a discovery,” comments...
  • Physicists get closer to finding the 'God Particle'

    03/13/2009 8:04:31 PM PDT · by NormsRevenge · 77 replies · 2,200+ views
    AFP on Yahoo ^ | 3/13/09 | AFP
    CHICAGO (AFP) – Physicists have come closer to finding the elusive "God Particle," which they hope could one day explain why particles have mass, the US Department of Energy's Fermi National Accelerator Laboratory announced Friday. Researchers at the Fermilab have managed to shrink the territory where the elusive Higgs Boson particle is expected to be found -- a discovery placing the American research institute ahead of its European rival in the race to discover one of the biggest prizes in physics. Physicists have long puzzled over how particles acquire mass. In 1964, a British physicist, Peter Higgs, came up with...
  • New atom-smasher could fill gaps in scientific knowledge -- or open a black hole

    04/14/2008 5:29:17 PM PDT · by Flavius · 40 replies · 188+ views
    ny times ^ | 4/14/08 | John Johnson
    GENEVA -- Michelangelo L. Mangano, a respected particle physicist who helped discover the top quark in 1995, now spends most days trying to convince people that his new machine won't destroy the world. "If it were just crackpots, we could wave them away," the physicist said in an interview at the European Organization for Nuclear Research, known by its French acronym, CERN. "But some are real physicists."
  • Glimpses of a New Subatomic Particle?

    03/26/2008 12:09:08 AM PDT · by neverdem · 14 replies · 877+ views
    ScienceNOW Daily News ^ | 20 March 2008 | Adrian Cho
    Enlarge ImageA difference of differences.By comparing two separate comparisons of matter and antimatter, researchers with the Belle detector may have found hints of new particles.Credit: KEK Why does the universe contain so much matter and so little antimatter? Particle physicists have puzzled over that question for 40 years. Now, new measurements may point to a hole in the current explanation for the subtle differences between matter and antimatter and could provide a better understanding of how the universe came to be chock-a-block with matter. The key lies in a slight flaw in the mirrorlike relationship between matter (common particles...