particle accelerator
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Stanford researchers manage to put a particle accelerator on a silicon chip
In scientific pursuits, like the search for dark matter, researchers sometimes use high-power particle accelerators. But these giant machines are extremely expensive and only a handful of them exist, so teams must travel to places like the SLAC National Accelerator Laboratory in Menlo Park, California, where Stanford University operates at two-mile-long particle accelerator. This may change, though. Researchers believe they have developed an alternative: a laser-driven particle accelerator that fits on a silicon chip.
Rovio and CERN teaming up on education: hopefully the Angry Birds help us this time [update]
The last time CERN and an angry bird met, it didn't end so well: the Large Hadron Collider overheated after a feathered creature reportedly dropped its breakfast on outdoor machinery. Things should go much more smoothly this time around, with CERN and Rovio partnering on an educational initiative that will be unveiled in full at the Frankfurt Book Fair on October 12th. Although the two are shy on just what's entailed beyond the presence of some Angry Birds material at the event, the union will mark the start of Rovio's learning brand and likely represent more in the long run than another Angry Birds Space tie-in. We're mostly wondering if subatomic physics research will explain why we still can't three-star some levels in a physics-based game. Update: Rovio and CERN announced "Angry Birds Playground" this morning, which the company describes as, "a learning program for 3- to 8-year-olds based on the Finnish National Curriculum for kindergarten." In so many words, CERN and Rovio are partnering on an educational initiative aimed at young children which employs the iconic Angry Birds characters. It's unclear whether the initiative will spawn games or books or ... what exactly, but there you have it.
CERN confirms existence of new particle consistent with Higgs boson (video)
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]
CERN update on its search for Higgs boson starts at 3AM ET (video)
The cat would appear to be out of the bag, but if you must find out about the status of the Higgs boson search ASAP, check the video stream (embedded after the break) as CERN scientists reveal whatever it is they've found. The webcast is scheduled to kick off at 2:55AM ET, as a prelude to this year's ICHEP particle physics conference in Melbourne. Whenever the announcement comes we'll be sure to let you know, check the links below for more information. Update: So yeah, they've found a new particle "consistent with Higgs boson," check out all the details here.
Higgs boson just may, possibly, more or less be proven to exist by ATLAS and CMS teams
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
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)
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.
Handmade particle accelerator unveiled at Milan Design Week, Higgs-Boson a no-show
When it comes to particle science, it's not all about huge winding tunnels and god particles. Super/collider, a group that aims to promote science through eye-catching creative methods, teamed up with designer Patrick Stevenson-Keating to craft this relatively simple -- but working-- particle accelerator for Milan Design week. The setup involves several hand-blown bulbs, with a vacuum inside them allowing electrons to rocket from side to side, lit in a purple haze thanks to a phosphorous screen at one end. The whole thing is fashioned from the relatively commonplace gear you see above, although a how-to guide still remains unfortunately non-existent.
Large Hadron Collider to increase beam energy: Higgs boson can run, not hide
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.
CERN: 'Don't believe the Higgs-Boson hype' (update: not yet)
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
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."
Antimatter gets trapped for 15 minutes by CERN scientists, escapes unharmed
Antimatter particles are elusive little critters that tend to disappear moments after being spotted. Unless, it turns out, you trap them in a "magnetic bottle" and turn the temperature right down to almost absolute zero. CERN scientists have now used this technique to hold 300 antihydrogen particles for up to 1,000 seconds, relaxing them into their ground (stationary) state to make them easier to study. This opens the way for further research later in the year, when captured particles will be prodded with lasers and microwaves to see if they obey the same laws of physics that govern everything else in our universe. After all this effort, we're quietly hoping they don't. [Thanks, Howard]
Large Hadron Collider smashes beam intensity record, inches closer to discovering God particle
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.
Inhabitat's Week in Green: reach for the stars, safer kids and sexier cars
Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. This week Inhabitat saw several incredible feats of green architecture reach for the stars as Richard Branson unveiled the world's first commercial spaceport and a lunar solar power tower won the Moon Capital International Design Challenge. We were also impressed by Snøhetta's design for a massive möbius strip-shaped particle accelerator and we caught the groundbreaking of what will be one of the world's most efficient solar skyscrapers in Korea. Ultra-efficient autos blazed a trail this week as an electric audi shattered a world EV distance record by traveling 372 miles on a single charge. We also caught a glimpse of the future of green transportation as major auto manufacturers unveiled a set of incredible eco concept cars, and we caught wind of a plan to bring these insane traffic-straddling buses to the United States. In other news, we learned that iPhones and other communication devices may have potentially deadly side effects for kids, and we showcased several innovative designs for safer cycling - an inflatable airbag collar that automatically pops up to prevent injuries and a crash helmet that makes a stink when it cracks. Finally, to celebrate Halloween we rounded up a ghastly array of ghoulish green designs - from a skeletal x-ray lamp to a skin-crawling camera made from a human skull to a company that will press your mortal remains into a vinyl record. Happy Halloween!
Has the Higgs Boson been discovered by LHC rival? Are we still here? (Update: No Higgs discovery, and we're still here)
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.
Large Hadron Collider schedules holiday for 2012, full 7 TeV power for 2013
It's good to know that even huge inanimate objects appreciate the need for a work-life balance. After a nice winter hiatus, Switzerland's Large Hadron Collider is coming back online soon, set to resume smashing protonic beams at one another with the force of 3.5 trillion electron-volts (TeV) per beam, or 7 TeV in total. We have to swallow hard when we hear such force described as "low-energy," but that's what the LHC designers consider it, and moreover we're learning they'll skip past the middle and go for the full 14 TeV potential smashes after a retooling break during 2012. Although this may delay the discovery of the Higgs boson particle, other physics research shouldn't be stalled in the meantime -- scientists claim they'll be able to extract data from the low-energy collisions that could lend us more information on aspects of string theory, extra dimensions, and supersymmetry. Doesn't all this sound like nerds trying to avoid getting real jobs?
Large Hadron Collider breaks energy record, still won't power a toaster
CERN's Large Hadron Collider just made the record books for something other than the cost of building a 27km-long circular tunnel. After achieving its first collision on Tuesday, the LHC roared beyond a trillion electron volts (1.18 TeV to be exact) literally smashing the 0.98 TeV energy record held by the Tevatron particle accelerator in Chicago since 2001. So far the LHC had been operating at a relatively modest 450 billion electron volts as it pushes up to full capacity of some 7 trillion electron volts. All that's left now is the minor issue of unlocking the secrets of the universe when the real scientific testing gets underway early next year.
Large Hadron Collider to run at half-power until end of 2010
After a series of setbacks, delays, and potential world-ending mishaps, it seems that the scientists at CERN have decided to take it easy with the Large Hadron Collider, and have announced that they plan to operate it at an energy of 3.5 TeV (or trillion electron volts) per beam when they start it up again in November of this year. If that goes well, they'll then cautiously ramp things up to 5 TeV per beam, before starting to shoot for a full 7 TeV per beam by the end of 2010. So, mark your calendars... while you still can.
US lawsuit calls Large Hadron Collider a Doomsday Machine, Higgs boson shrugs
If OJ made one thing perfectly clear, it's that the word "reason," at the root of "reasonable doubt" has lost all meaning in the US court system. So what do you think will be the outcome of a new lawsuit claiming that CERN's Large Hadron Collider is a Doomsday machine? The suit filed in Hawaii's US District Court by Luis Sancho and a former nuclear safety officer by the name of Walter Wagner, seeks to put the already delayed LHC launch on hold pending a new safety review. It's worth noting that the same doomsday scenarios of micro black holes and strangelets (think: the Midas Touch of death) have been raised by Wagner previously with the launch of other accelerators -- they've also been summarily dismissed by the scientific community as "beyond reasonable." It's also worth noting that the 27km-long LHC crisscrosses the border between France and Switzerland, not the US. An initial conference on the lawsuit is scheduled for June 16th, a few months before the first collisions are scheduled to begin and well before LHC is capable of its 4 trillion electron-volts maximum power. Peter Higgs, we feel your pain. [Thanks Aaron, Original Image courtesy of Ute Kraus]
