LHC

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  • Alt-week 8.4.12: buckyballs, bosons and bodily fluids

    by 
    Terrence O'Brien
    Terrence O'Brien
    08.04.2012

    Alt-week peels back the covers on some of the more curious sci-tech stories from the last seven days. Remember when we told you last week that we live in a strange world? Well, we had no idea what we were talking about. Seriously, things are about to get a whole lot weirder. High school is certainly a head-scratcher, no matter how old you are, but the mathematics of social hierarchies can't hold a candle to the mysteries of the buckyball. And, if the strange behavior of the familiar carbon molecule isn't enough for you, we've got an entirely new molecule to contend with, while the once-elusive Higgs Boson is getting us closer to unlocking the secrets of the universe. It's all pretty heady stuff, which is why we're also gonna take a quick detour to the world of human waste. This is alt-week.

  • CERN confirms existence of new particle consistent with Higgs boson (video)

    by 
    James Trew
    James Trew
    07.04.2012

    Physics' big announcement had more in common with a leaky product launch than the serious business of re-writing the science books. But slack asset management aside, it's official: a new boson has been observed with a standard deviation of 5 (confidence of 99.9%). The highly anticipated announcement came this morning direct from CERN's press conference (via ICHEP in Melbourne,) and is the result of an intense, ongoing search for the elusive particle. The observation is of a boson particle with a mass of 125.3 ± 0.6 GeV, at a significance of 4.9 sigma. Joe Incandela -- giving the presentation -- said that this is "In agreement with the standard model at 95% confidence range." The boson is the heaviest ever found, and although this is still a preliminary result, it's by far the strongest case yet for the existence of the elusive Higgs. The sought-after particle is essential for supporting the current understanding of sub-atomic world, and its bearing on nuclear, and electromagnetic interactions. The next stage will be to determine the exact characteristics of the new particle and whether it matches the expectations of the Higgs, or is it in fact something more "exotic." This part will take much more time, but for now, a (very) small, but important piece of the puzzle has been found. Update: We're sure you've got many questions, and CERN apparently anticipated this. Check out the more coverage link for a helpful FAQ about everything Higgs. [Image credit: CERN]

  • Higgs boson just may, possibly, more or less be proven to exist by ATLAS and CMS teams

    by 
    Jon Fingas
    Jon Fingas
    07.03.2012

    We had a false alarm over the possible discovery of the theory-unifying Higgs boson last year, but a bit of poking and prodding in subsequent months may well have given us much more definitive evidence of the elusive particle. According to some rare rumors emerging from Nature, both CERN's ATLAS and CMS detectors have seen particle decay signals suggesting the existence of Higgs to within a 4.5 to 5 sigma level of proof -- in other words, very nearly concrete evidence. That's not quite the 5-plus needed to settle the matter, but it's to a much higher level of certainty than before. As if to add fuel to the fire, ScienceNews even located a briefly posted, CERN-made video (sadly, since pulled) saying bluntly that the CMS team had "observed a new particle." Whether or not there's any substance is another matter. Nature hears that scientists are supposedly still working out what to say at an event on Wednesday, while CERN has made the slightly odd claim to ScienceNews that the yanked video is just one of several pre-recorded segments made to cover possible outcomes -- you know, in that "Dewey defeats Truman" sort of way. Unless the scientists have to go back to the drawing board, though, the focus from now on may be more on learning how Higgs behaves than its very existence. Any significant truth could see researchers proving the validity of the standard model of physics just as we're firing up our Independence Day barbecues.

  • Large Hadron Collider affected by full moon, ocean commiserates

    by 
    Alexis Santos
    Alexis Santos
    06.08.2012

    Large Hadron Collider not running properly? If you've read the docs and restarted it, check for a full moon. After noticing fewer particle collisions while on her shift, Pauline Gagnon reached out to a control room operator who casually explained that they adjust beam alignment during full moons. Yes, the tide-producing orbit of Earth's satellite tugs the LHC's inner workings ever so slightly askew. Though minute, the changes add up over the collider's 27km circumference and are picked up by monitoring equipment sensitive enough to measure elementary particles. However, Luna isn't the only thing that affects the accelerator -- the water level in Lake Geneva and passing high-speed rail trains also do the trick. Will your hand react differently to the LHC's beam under a Harvest Moon? Probably not. In any case, hit the source for the scientific details.

  • CERN scientists explain what would happen if you put your hand in the LHC's beam (video)

    by 
    Donald Melanson
    Donald Melanson
    05.04.2012

    Sure, concerns about the Large Hadron Collider creating a world-destroying black hole may have been more or less put to rest, but there's still plenty of pressing questions that remain unanswered. Like, what would happen if you put your hand in the beam? The folks from Sixty Symbols recently asked some physicists that very question and got some rather puzzled responses, so they went straight to CERN itself to get a definitive answer. You can see that in full after the break, but the short version is that it's something like the force of a moving aircraft carrier concentrated down to a laser-like one-millimeter-wide beam (accompanied by a wider beam of particles that would irradiate your entire body). Bad news. As they're quick to point out, though, actually getting anywhere near the beam is virtually impossible.

  • CERN crew takes to Google+ for live Hangout

    by 
    Terrence O'Brien
    Terrence O'Brien
    02.15.2012

    Got questions for CERN crew? We know we do. For instance, if a Higgs boson falls in the woods and no one is around to hear it, does it still create a miniature black hole that swallows the Earth and destroys us all? Well if you've got queries for the folks working the LHC, attempting to unlock the secrets of the universe then hit up the source link for a live Hangout at that most nerdy of social networks Google+. The conversation starts at 1 pm eastern time.

  • Large Hadron Collider to increase beam energy: Higgs boson can run, not hide

    by 
    James Trew
    James Trew
    02.14.2012

    We've seen the Large Hadron Collider running at a record-breaking 7 TeV for short periods, but now CERN is turning it up a notch (to 4 TeV from 3.5) for the rest of the year. The decision comes after an annual performance workshop last week in Chamonix and a report from the CERN Machine Advisory Committee (CMAC). The increase may seem modest compared to the knee-trembling levels of 7 TeV, but it's all part of a broader optimization strategy. Scientists state the new approach should increase the data collected in 2012 to 15 inverse femtobarns -- a three-fold jump from 2011. Even more encouraging is a statement from CERN's Research Director, Sergio Bertolucci, who claims that we should finally know for sure about the existence of the Higgs boson -- either way -- before the LHC enters a temporary shut-down period at the end of the year. Beam yourself over the break for the full press release.

  • LHC discovers 'particle', starts repaying back that five billion

    by 
    Daniel Cooper
    Daniel Cooper
    12.22.2011

    The Large Hadron Collider at CERN was built to discover new life forms and new civilizations particles to complete the Standard Model of physics, of which the Higgs-Boson is only a part. The $5 billion project has finally found something previously unseen, according to the BBC. ATLAS has picked up Chi-b 3P: a Boson (building block of nature) Meson comprised of a "beauty quark" and a "beauty anti-quark," bound together with a strong nuclear force -- believed to exist in nature, but never seen until now. Yesterday's discovery is so new, it hasn't even had a sigma rating yet, but we don't expect CERN to confirm the find until its next two hour keynote. Update: The initial report described the particle as a Boson (elemental force carriers), it is in fact a Meson (which comprise of a quark and an anti-quark).

  • Caltech sets 186Gbps Internet speed record, makes our 5Mbps look even more inadequate (video)

    by 
    Daniel Cooper
    Daniel Cooper
    12.13.2011

    Did you know that the Large Hadron Collider at CERN has already produced 100 petabytes of data that needed to be sent out to labs across the world for analysis? Pushing that amount of information across the Internet is a gargantuan task, which is why Caltech teamed up with the Universities of Victoria, Michigan and Florida (International) amongst others to try and break the internet speed record. Using commercially available gear (including Dell servers with SSDs), it was able to push 98Gbps and pull 88Gbps down a single 100Gbps fibre-optic connection between the Washington State convention center in Seattle and the University of Victoria computing center in British Columbia. Head on past the break for a video that shows you how it was done and why it probably won't be commercially available in time to super-size your Netflix queue.

  • CERN: 'Don't believe the Higgs-Boson hype' (update: not yet)

    by 
    Daniel Cooper
    Daniel Cooper
    12.13.2011

    CERN is pouring cold water on the rumor it's gonna announce the discovery of the Higgs at today's seminar in Zurich. For the uninitiated: the Higgs-Boson is the particle that is believed to give all things mass: it surrounds us, penetrates us and binds the galaxy together. The scuttlebutt is that the ATLAS sensor picked up a Higgs with a mass of 125GeV (gigaelectronvolts) and rated at three-point-five-sigma -- a one sigma barely warrants a mention, a five-sigma is a bona-fide scientific discovery. CERN hasn't confirmed or denied anything, claiming it's still got five inverse femtobarns worth of data (roughly 5 x 70 x 10^12 of individual collisions) to examine before it can be sure, so just chuck the one bottle of champagne into the refrigerator -- better to be safe, eh? Update: Looks like we don't need to bust out the bubbly, after all. The conclusion from the two-hour presentation is that the ATLAS detector has been able to narrow down the region it believes the Higgs is in to 115.5GeV to 131GeV and that any discovery so-far only has a rating of two point three sigma. The CMS is similarly inconclusive, with results bobbing around the two sigma region. In short, whilst they know where they should look, they haven't been able to find one -- yet.

  • Pour one out for the Tevatron particle accelerator, because it's shutting down today

    by 
    Amar Toor
    Amar Toor
    09.30.2011

    The eyes of the physics community are collectively fixed upon Illinois today, where, later this afternoon, researchers at Fermilab will shut down the Tevatron particle accelerator... for good. That's right -- the world's second-largest collider is being laid to rest, after a remarkable 25-year run that was recently halted due to budgetary constraints. Earlier this year, Fermilab's scientists and a group of prominent physicists pleaded with the government to keep the Tevatron running until 2014, but the Energy Department ultimately determined that the lab's $100 million price tag was too steep, effectively driving a nail through the accelerator's subterranean, four-mile-long coffin. First activated in 1985, the Tevatron scored a series of subatomic breakthroughs over the course of its lifespan, including, most notably, the discovery of the so-called top quark in 1995. Its groundbreaking technology, meanwhile, helped pave the way for CERN's Large Hadron Collider, which will now pursue the one jewel missing from the Tevatron's resume -- the Higgs boson. Many experts contend that the collider could've gone on to achieve much more, but its ride will nonetheless come to an inglorious end at 2PM today, when Fermilab director Pier Oddone oversees the Tevatron's last rites. "That will be it," physicist Gregorio Bernardi told the Washington Post. "Then we'll have a big party."

  • CERN's LHC@home 2.0 project simulates a Large Hadron Collider in the cloud

    by 
    Lydia Leavitt
    Lydia Leavitt
    08.09.2011

    "You break it, you bought it," came to mind when researchers at the Centre for European Nuclear Research (CERN) announced the LHC@home 2.0 project, giving us regular Joes access to the Large Hadron Collider. OK, we kid; the reality is that much like SETI@home and Folding@home, a whole group of volunteering home computers link up together, and while idle they quietly help simulate LHC particle collisions according to CERN's theoretical models. Scientists there then compare these results with those from actual LHC experiments in order to check for any instrumental or theoretical errors, thus potentially speeding up the mission to find the God particle in a low cost manner. Besides being a great way to get your science on, the cloud-based program also makes CERN's resources (like crisis mapping and damage assessment) available to researchers in developing nations that may not to be able to afford the accelerator's $6 billion dollar price tag -- but nowadays, what nation can?

  • Large Hadron Collider smashes beam intensity record, inches closer to discovering God particle

    by 
    Terrence O'Brien
    Terrence O'Brien
    04.22.2011

    Already a record holder for mashing protons together at 7 TeV (trillion electron volts), the Large Hadron Collider can now add world's brightest beam to its list of accomplishments. Beam intensity is a way of measuring the number of collisions in its 17-mile-long track, and a higher intensity means more impacts -- which, in turn, means more data, increasing the likelihood that the elusive Higgs boson will rear its head (should such a thing exist). The LHC smashed the previous luminosity record set last year by the Tevatron collider. What's next for the CERN team, with two world records under its belt? Largest beard of bees.

  • Theorists get us closer to believing time travel is possible via the Large Hadron Collider

    by 
    Darren Murph
    Darren Murph
    03.19.2011

    Hard to say if Doc Brown would give this his coveted seal of approval, but our gullible minds have already been made up: time travel is not only possible, but it's well within reach. A gaggle of scientists have apparently figured out a theory that could use the Large Hadron Collider to move a Higgs singlet back and forth through time. The 'catch' is that they have yet to prove the existence of said singlet, but the upside is that nothing in theory violates any laws of physics or experimental constraints. In other words, this wouldn't enable a human to move back and forth along the universal timetable à la Fringe, but it could allow for messages to be sent forward and back. About 14 other improbable things have to happen before this could even be tested, but if you're even remotely interested in the concept (c'mon, you are), you owe it to yourself to give those source links a peek.

  • Large Hadron Collider wants to make mini Big Bangs, Sheldon and Leonard disapprove

    by 
    Laura June Dziuban
    Laura June Dziuban
    11.08.2010

    The Large Hadron Collider has been busily colliding protons since it opened last year, but a new set of experiments starting later this month could tell us more about the beginnings of the universe than we've ever known before. At CERN, where the LHC is housed in Geneva, scientists will attempt to create mini Big Bangs (the full-sized one is generally accepted as having created the actual universe about 13.7 billion years ago). The process will involve shooting lead ions through the 17-mile long collider, and accelerating them to relativistic speeds before colliding them head-on with protons. According to popular wisdom this should cause an explosion resulting in the creation of brand spanking new particles. Although similar experiments have been conducted on a much smaller scale at the Relativistic Heavy Ion Collider, this will be the first time scientists have attempted to accurately recreate conditions exactly like the Big Bang. Hit the source link for the full story.

  • What would happen if you put your hand in the Large Hadron Collider? Er, well, um... (video)

    by 
    Vlad Savov
    Vlad Savov
    09.24.2010

    Scientists, they've made our lives infinitely easier, healthier, and longer, but sometimes even their giant intellects can be stumped. Here we have a perfect example of such a scenario, where the seemingly innocuous question of what might happen if one were to dip a hand inside the Large Hadron Collider has generated a wide range of hypotheses, none of which sound particularly assured of being correct. The trouble is that, aside from the known unknowns -- such as whether the accelerated protons would crash and explode upon contact with your hand or just pass through -- there are surely unknown unknowns that will likely become apparent only once you try to do the act itself. So, any volunteers?

  • Has the Higgs Boson been discovered by LHC rival? Are we still here? (Update: No Higgs discovery, and we're still here)

    by 
    Laura June Dziuban
    Laura June Dziuban
    07.13.2010

    The Large Hadron Collider isn't the only bad boy on the block looking for the so-called God particle -- technically known as the Higgs Boson. A lesser known facility, the Tevatron -- located at the Fermi National Accelerator Laboratory in Batavia, Illinois -- has also been furiously searching for the particle which would help to explain the origins of mass in the universe -- and it looks like they might have found it. A rumor has been swirling about recently that the found particle is a "three-sigma," meaning that it's got a 99.7 percent statistical likelihood of being correct -- but the lab itself has yet to confirm or deny. The Tevatron, which was completed 27 years ago, is the second largest accelerator in the world (after the LHC) and it's expected to be retired once the CERN facility is fully operational. Update: Well, that was fun for the few hours that it lasted. New Scientist has published a piece confirming that Tevatron is in fact denying the rumor, and no Higgs Boson discovery has gone down.

  • LHCsound brings the noise, asks how low Higgs boson can go

    by 
    Tim Stevens
    Tim Stevens
    06.29.2010

    God particle. The Champagne bottle boson. Non-existon. Mysteron. The Higgs boson particle is certainly known by a lot of names, and now we can add another to the list: rock god. The UK's Science and Technology Facilities Council has created "LHCsound: the sound of science." It's a series of (confusingly organized) pages offering acoustic renditions of the Large Hadron Collider's greatest hits, like proton collision, detector sweeps, and, our favorite, simulated Higgs Boson delay, which you can hear after the break. The data created by the energy and frequency of particle decay is used to modify the sound of running water, resulting in a generally creepy effect. We think it'd be perfect for accompanying your next foggy exploration of Silent Hill, but perhaps the next episode of Half Life 2 would be more appropriate.[Thanks, John C.]

  • Large Hadron Collider to search for God Particle using 7 TeV proton collisions, via live webcast (update: first collisions, video!)

    by 
    Vlad Savov
    Vlad Savov
    03.30.2010

    The Large Hadron Collider is about to turn useful, people. Having recently jacked up its particle acceleration power to create 3.5 TeV (trillion electron volts) collisions, the researchers are today pressing ahead with plans to go to a full 7 TeV, which -- you won't be surprised to hear -- has never been done before. Provided the requisite 3.5 TeV per beam is reached, sustained and properly channeled into creating useful collisions, CERN will finally have the data it needs to start its long-awaited physics program based off the findings provided by the LHC. Best of all? The latest world record attempt is being broadcast live over the web right now so why not hit up that link below to witness some history in the making? Update: The momentous first protonic collisions at 7 TeV have just taken place, at just past 1PM CET. Now the time comes for researchers to parse all the incoming raw data, pore over it, analyze it, etc. We'll leave that to them, it's not like you can expect the God Particle to be discovered instantly. To fill the time, we invite you to come past the break for our blow-by-blow updating adventure from this morning plus video of the big moment.

  • LHC breaks its own energy record, still less powerful than Lady Gaga

    by 
    Laura June Dziuban
    Laura June Dziuban
    03.19.2010

    The Large Hadron Collider is no stranger to setting energy records: back at the end of November it broke the 0.98 TeV record by hitting the 1.18 TeV mark. Well, the problem beleaguered collider's just handily surpassed itself -- this time with a truly stunning 3.5 TeV -- with beams of protons on record as having circulated at 3.5 trillion electron volt. Now, we're not scientists or anything, but that sure is a lot of volts! CERN's moving on later this week and will begin colliding the beams so they can check out the tiniest particles within atoms in the hopes of finding out more about how matter's made up. We look forward to hearing all about that, too -- but until then, we made do by reading the source over and over.