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Interviews: Ask Physicist Giovanni Organtini About the Possible Higgs Boson Disc

Giovanni Organtini of Italy's National Institute of Nuclear Physics (well, Instituto Nazionale di Fisica Nucleare) has agreed to answer questions about the recent observations of a particle consistent with the Higgs Boson. Dr. Organtini is part of the CMS experiment at the Large Hadron Collider. He is careful to note that while the researchers "[believe] that this new particle, with a mass 125 times that of a proton, is the famous Higgs boson," they "need to study that new particle more deeply in the next months to be conclusive on that. Organtini likes free software (he's written Linux device drivers, too) and has his own physics-heavy YouTube channel, mostly in Italian. Please confine questions to one per post, but feel free to ask as many as you'd like.

28 of 170 comments (clear)

  1. The Best of the Worst Science Reporting? by eldavojohn · · Score: 5, Interesting

    In regards to the Higgs Boson, what's the stupidest thing you've seen in the press? Has anything in particular made you really laugh or groan? Has the reporting been overly irresponsible for this discovery process or just the same old press that you're used to?

    --
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  2. Disc by MagicM · · Score: 3, Informative

    How much do you hate people who say "disc" instead of "discovery" and lead halfwits everywhere to believe the Higgs particle is disc-shaped somehow?

  3. Open Data? by eldavojohn · · Score: 5, Interesting

    Since you're a fan of free software, why don't we see more open data efforts in particle physics? I see headlines like this and they're kind of a turnoff. Aside from this super confusing applet I haven't been able to find torrents of the data available on these tests. Why is that? I mean, as a software developer there is a legitimate effort of folks writing open source software and then there's a legitimate effort of people using that software to accomplish many things and everyone deserves credit. So why are particle physicists so keen on being the collectors and (at least initially) the sole keepers of their data? It would seem to make sense to me that people should be rewarded based on their collection of data and how meticulous and well they do that while any group can consume and derive results from said data. I understand the process has gotten more open but why so slowly? Why not torrent your data to whoever wants it immediately after you get it?

    --
    My work here is dung.
    1. Re:Open Data? by Anonymous Coward · · Score: 4, Informative

      ATLAS generates 23 petabytes of raw data per second. A large computer cluster near the detector identifies which events to store amounting to 100 megabytes per second which is around 1 petabyte of data per year. (Straight from wikipedia)

      The actual analysis of the data requires multiple large computer clusters world wide. I believe the data is available to anyone with the expertise and knowledge required to do any meaningful data analysis. Oh and having a spare cluster sitting around with nothing to do probably helps as well.

  4. The future of the Higgs by Dartz-IRL · · Score: 5, Interesting

    While I know it is rather early to comment, what do you think the future applications of today's research into Higgs Boson will be?

    Don't be afraid to be a little bit sky-high. I for one am already fantasising about space ships propelled by manipulation of the Higgs field on a local scale.

    I'm only asking because, a century ago the electron was discovered and nobody was quite sure what to do with it. And it runs the world.

    --
    So there I was, scribbling down some notes off the PC screen by hand, when I reached for the keyboard and Ctrl-S'd.
  5. Is it higgsy? by rwven · · Score: 5, Interesting

    What success or failure factors can/should/will be used to determine whether or not the new particle is actually the higgs, or something else unexpected?

  6. When Does the Particle Hunt End? by eldavojohn · · Score: 4, Interesting

    So say hypothetically that with this discovery we quickly unify the four fundamental forces of our universe. Does the 'particle hunt' end there? Is there any reason there aren't more fundamental particles -- even ones that might not be predicted by the Standard Model but do exist? If your answer is "no one knows," what is your gut feeling and why?

    --
    My work here is dung.
  7. mass for a mass-giving particle by ThorGod · · Score: 3, Interesting

    What does it mean to say a particle that gives all other particles mass...has mass itself?

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    1. Re:mass for a mass-giving particle by TemperedAlchemist · · Score: 3, Interesting

      The Higgs mechanism is what gives particles mass, not to be confused with the Higgs boson ;)

      Two different things, named the same because of how related they are.

    2. Re:mass for a mass-giving particle by noobermin · · Score: 3, Informative

      This is slashdot, so I'm going to assume I can at least share some "mathy" parts of it (not really the whole thing).

      The Higgs Field is represented by two complex numbers. It is a field, therefore, it has a value in every point in space, kind of like how the temperature across the world varies depending on where you are. In that example, the "temperature field", I'd guess, is represented by a real number at every point.

      Now remember that each complex number can be written as two real ones given the form:
      z = a+bi
      therefore, technically, the Higgs field is not just two complex numbers but it can be thought of as four real numbers. So think of it as being a bundle field with four numbers for each point. Each number, turns out, becomes a particle.

      So there are four particles that come out of the Higgs field. Three of them turn out to be components of the Weak bosons (W+, W-, Z_0), as needed to explain why they have mass while photons don't. But there is one field left. This is identified as a new boson, the Higgs Boson.

      So, the Higgs Boson is actually just _part_ of the Higgs Field. It isn't like the photon, which is the particle of the whole EM field. Oddly enough, the Higgs Field itself is massless, I think. But the Higgs Boson recieves mass the same way the other three Weak bosons recieved mass, by the Higgs Mechanism.

      Really, you can get all woowy with the conceptual part of the Higgs Mechanism but it really is just a neat math trick that I can't really explain here. Essentially, you start with a mathematically description of the particles with mc^2=0 (remember Einstien's equation, E=mc^2 for the energy stored in mass), ie, the particles are massless. After the math trick involving the Higgs Field (not just the Higgs Boson!) you obtain a term that looks like mc^2, so it's like the mass term arises spontaneously without having to put it in there a priori. Hence how we say the particle has "acquired" mass: We started out modeling out particles as massless but all of a sudden, the math tells us it has it.

  8. Applying the discover in engineering & tech by globaljustin · · Score: 4, Interesting

    Dr. Joe Incandela of UC Santa Barbara and CMS director said recently of the CERN Higgs results:

    "This is so far out on a limb, **I have no idea where it will be applied**, We're talking about something **we have no idea** what the implications are and **may not be directly applied for centuries**."

    (source: http://www.huffingtonpost.com/2012/07/04/stephen-hawking-and-higgs-boson-bet_n_1650024.html)

    My questions: Do you agree that the direct application of the findings are as nebulous and abstract as he describes?

    Please discuss the implications of your answer and how they relate to the economic choices of how humans use their scientific resources.

    --
    Thank you Dave Raggett
  9. Should I Expect More Theories or Less Theories? by eldavojohn · · Score: 3, Interesting

    With every passing news item about particle physics, it seems everyone's pet theory mutates or breaks off into different sects. I read some Brian Greene in high school and have since become a little flustered with string theory ... or rather the many variations. The cynic in me fears that any new information on the Higgs Boson (or lack thereof) will result in more not less theories that should unify the four fundamental forces. Could you explain how information on the Higgs (one way or the other) would rule out certain symmetries or models that many people have been theorizing? Can I expect this to at least reduce our set of possible theories and not just provide N more mutations for each existing theory that strives to account for what we just found? Or should I just buckle up for everyone pushing their version through these results no matter what they show?

    --
    My work here is dung.
  10. Re:Article title by Anonymous Coward · · Score: 4, Funny

    And we were only one character away from discussing the "Higgs Boson Disco"!

  11. What's the future of particle physics? by bugnuts · · Score: 5, Interesting

    Once this particle is examined, and let's assume it's the elusive Higgs, is there a continuing reason for large particle accellerators?

    Basically, I'm asking in ignorance. If this confirms the standard model, what do you see for discoveries of this nature in the.future?

  12. Question - Pragmatics by c0d3r · · Score: 3, Interesting

    In regards to the discovery of the Higgs Boson, what is an example of a practical application of this discovery. I find that physics is best explained with real-world examples.

  13. Inertial mass vs. gravitational mass by Omnifarious · · Score: 5, Interesting

    The Higgs boson is famously associated with how particles acquire a 'mass'. But mass is, in itself, an interesting property. As I understand it, the Higgs boson is only associated with inertial mass. If this is so, do you expect gravitational mass and inertial mass to be always the same? If so, would you speculate on the mechanism that ensures this is true?

  14. Re:Article title by Black+Parrot · · Score: 3, Funny

    "Interviews: Ask Physicist Giovanni Organtini About the Possible Higgs Boson Disc"

    Is the Higgs Boson disc-shaped or is Timothy too lazy to use the preview button before posting ?

    No, what he meant was that Organtini is going to put a bunch of Higgs Bosons on a DVD and sell them to people who want them. This is your chance to ask questions before you buy, such as:

    How many bosons will be on the disc?

    Will I be able to view them on Linux?

    Why not just make them available for download?

    --
    Sheesh, evil *and* a jerk. -- Jade
  15. Re:where does a proton get its mass? by Immerman · · Score: 3, Informative

    I'm betting they're talking mass-energy when they refer to the particle's mass, that's the norm for particle physics, and one of the reasons masses are measured in GeV (technically GeV/c^2) instead of molar-masses or something as is done in chemistry.

    Basically there are three distinct phenomena that all go by the name "mass" since, in all experiments to date, they are invariant with respect to each other.
    (1) mass-energy: e=mc^2, how much energy would you get out if you annihilated the particle
    (2) inertial mass - F=ma, how much an object resists acceleration from a force
    (3) gravitational mass: f = G * m1*m2 / r^2, this is the gravitational "charge" that determines how strong the force of gravity between objects is, highly analogous to electrostatic charge though much weaker, to the point of being essentially undetectable in particle accelerator experiments.

    From what I understand the Higgs field is probably responsible for the latter two, however the first is still an inherent property of the particle itself.

    Oh, and incidentally top quarks are actually even more massive at 171GeV, and Bottom and Charm quarks are both pretty beefy at ~4.2 and 1.3 GeV, respectively, versus the puny 2.4 and 4.8MeV of the Up and Down quarks that make up normal matter (which actually gets most of it's mass from gluons) http://en.wikipedia.org/wiki/Quark#Classification

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    --- Most topics have many sides worth arguing, allow me to take one opposite you.
  16. Higgs and the Ether by Liquidrage · · Score: 3, Interesting

    The likely Higgs discovery would seem to validate Quantum field theory.
    Would this then be best described as an ether, only instead of matter traveling through the ether, matter is manifestations of the ether (fields) itself. Would this also than mean that the motion of matter is not a physical movement of a "particle" but instead the transfer of the "excitement" of a field from one spot of the field to another?

    And what, if any, implications does this disocvery have for unifying gravity or other areas of physics?

  17. Re:Article title by Dewin · · Score: 3, Funny

    No, what he meant was that Organtini is going to put a bunch of Higgs Bosons on a DVD and sell them to people who want them.

    I don't think Higgs Bosons will catch the interest of the mass market.

    --
    Of course nobody reads the FAQ! If people read the FAQ, the Questions wouldn't be so Frequently Asked.
  18. Significance of Higgs Boson mass? by SpinyNorman · · Score: 3, Interesting

    As I understand it, a Higgs Boson compatible with the standard model could have been found at a range of different masses, and the search for it has involved searching the possible mass range until it was either discovered or not.

    Assuming that this new discovery is indeed the Higgs Boson as predicted and compatible with the standard model, what is the significance of the particular mass that it has been found to have? Are there any macro-scale predictions that depend on its mass?

  19. How do you feel about... by solidraven · · Score: 3, Interesting

    How do you feel about the fact that a large portion of the CMS was built by recycling military hardware? Do you see it as a sign that the world is finally moving towards peace and that large scientific projects like the LHC are helping it along that path; Or do you find it disappointing that it was the only option to acquire the necessary materials?

  20. SSC by Michael+Woodhams · · Score: 3, Interesting

    Had the superconducting supercolider (SSC) been completed in the USA in the 1990s, would it have found this particle? Even with a 20 year technology advantage, LHC has taken some time to get there.

    --
    Quattuor res in hoc mundo sanctae sunt: libri, liberi, libertas et liberalitas.
  21. what are the next incremental follow-ons? by peter303 · · Score: 3, Interesting

    I heard they may want to check several other decay paths for energy resonances.
    I also heard there could be a family of Higgs bosons, so we may look for others?

  22. What next for LHC? by iris-n · · Score: 3, Interesting

    Assuming that this new particle is in fact the Standard Model Higgs boson, what more can we expect to discover with CMS? Is there any new physics you expect to be within the reach of CMS? Or this is pretty much the end?

    I know this question is unanswerable, but your best guess would make me happy. I'm actually very worried by the prospects of running out of (falsifiable) theories to test...

    --
    entropy happens
  23. dumb question by slashmydots · · Score: 3, Interesting

    This is an IT worker question, not a particle physicist question, so hopefully it's an easy one. How does the Higgs boson come into play when photons, which have a tiny amount of mass, are spontaneously created when a substance like metal gets hot. Is it a direct energy to mass conversion?

  24. This may sound really dumb but.... by jkauzlar · · Score: 3, Interesting

    ... the answers to the dumbest questions are sometimes the most interesting :) I understand that the Higgs is responsible for giving mass to all the other particles, then it must be *everywhere*. Why is it so difficult to detect? Why does it take such a staggeringly powerful supercollider to find what ought to be as common as the electron or proton?

    Also, I can't help but to visualize particles as something like billiard balls while I'm aware they're only mathematical abstractions from our point of view and that experiments like the double-slit experiment refute the billiard-ball model... is there a way to visualize the Higgs to make the answer to my previous question easier to understand?

  25. Analogies to magnetic and electric fields by FreedomFirstThenPeac · · Score: 3, Interesting

    One press report discussed the idea that the Higgs field might have the same transient existence that the aether did in Electro-Magnetic theory. Do you think there is a field that will interact with the Higgs field to produce an energy transmission function similar to that described by Maxwell's equations?

    --
    "There is no god but allah" - well, they got it half right.