What is Higgs: Definition and 682 Discussions

In the Standard Model of particle physics, the Higgs mechanism is essential to explain the generation mechanism of the property "mass" for gauge bosons. Without the Higgs mechanism, all bosons (one of the two classes of particles, the other being fermions) would be considered massless, but measurements show that the W+, W−, and Z0 bosons actually have relatively large masses of around 80 GeV/c2. The Higgs field resolves this conundrum. The simplest description of the mechanism adds a quantum field (the Higgs field) that permeates all space to the Standard Model. Below some extremely high temperature, the field causes spontaneous symmetry breaking during interactions. The breaking of symmetry triggers the Higgs mechanism, causing the bosons it interacts with to have mass. In the Standard Model, the phrase "Higgs mechanism" refers specifically to the generation of masses for the W±, and Z weak gauge bosons through electroweak symmetry breaking. The Large Hadron Collider at CERN announced results consistent with the Higgs particle on 14 March 2013, making it extremely likely that the field, or one like it, exists, and explaining how the Higgs mechanism takes place in nature.
The mechanism was proposed in 1962 by Philip Warren Anderson, following work in the late 1950s on symmetry breaking in superconductivity and a 1960 paper by Yoichiro Nambu that discussed its application within particle physics.
A theory able to finally explain mass generation without "breaking" gauge theory was published almost simultaneously by three independent groups in 1964: by Robert Brout and François Englert; by Peter Higgs; and by Gerald Guralnik, C. R. Hagen, and Tom Kibble. The Higgs mechanism is therefore also called the Brout–Englert–Higgs mechanism, or Englert–Brout–Higgs–Guralnik–Hagen–Kibble mechanism, Anderson–Higgs mechanism, Anderson–Higgs–Kibble mechanism, Higgs–Kibble mechanism by Abdus Salam and ABEGHHK'tH mechanism (for Anderson, Brout, Englert, Guralnik, Hagen, Higgs, Kibble, and 't Hooft) by Peter Higgs. The Higgs mechanism in electrodynamics was also discovered independently by Eberly and Reiss in reverse
as the "gauge" Dirac field mass gain due to the artificially displaced electromagnetic field as a Higgs field.On 8 October 2013, following the discovery at CERN's Large Hadron Collider of a new particle that appeared to be the long-sought Higgs boson predicted by the theory, it was announced that Peter Higgs and François Englert had been awarded the 2013 Nobel Prize in Physics.

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  1. C

    Higgs bosom is this where energy becomes mass?

    The Higgs bosons has no mass before it travels through the Higgs field. So is this the point where energy becomes mass?
  2. R

    Questions, Why, Practical Applications Higgs Boson

    Firstly, an open statement to everyone in this forum. I am in search of some answers to questions I have so that I may have a better understanding of this research. For this reason I have posted this so that through all of you my lack of education or some may refer to ignorance I may be...
  3. J

    Electron mass increased by electromagnetic coupling like it is by Higgs coupling?

    Would electromagnetic coupling between an electron with charge e and an electromagnetic field with scalar potential V_em add to its mass in the same way as its coupling to the scalar Higgs field? i.e. mass_electron = g V_Higgs + e V_em Somewhere I got the picture that a left-handed...
  4. M

    Light fermions and ~125 GeV Higgs from asymptotic safety

    From http://arxiv.org/abs/1112.2415, "Planck scale Boundary Conditions and the Higgs Mass", I learn of http://arxiv.org/abs/0912.0208, "Asymptotic safety of gravity and the Higgs boson mass", which predicts a Higgs mass of 127 GeV as a consequence of the vanishing of the Higgs self-interaction...
  5. J

    Higgs vacuum expectation value imples what energy density?

    I understand that the the Higgs field has a vacuum expectation value of 246 GeV. I think that means that the expectation of the Hamiltonian energy operator applied to the vacuum state is 246 GeV. What does this imply for the energy density of the Higgs field in the vacuum (i.e. in Joules /...
  6. P

    CERN Live Webcast of Higgs status on 13 Dec

    Four days later there will be a CERN live broadcast of the seminar discussing the latest result in Higgs search with about 5 inverse femtobarn of data from both CMS and ATLAS. However, it starts at 5am Eastern Time! Do you know whether the video can be watched again in the afternoon?
  7. S

    News Stories of Possible Imminent Higgs Boson Discovery

    There seem to be a number of news stories coming out about the possibility of an imminent find of the Higgs Boson @ 125-126GeV: http://www.bbc.co.uk/news/science-environment-16074411 So what if the elusive Higgs Boson is finally found? Could this somehow enable us to conquer and manipulate...
  8. rhody

    Higgs rumors prior to CERN seminar

    I did a search before posting. Posted yesterday, The Register, Rumours of Higgs sightings precede latest results seminar Form this link correct me if I am wrong, 3.5 sigma would be equal to: and 5 sigma, 233 parts per million would be enough confidence that the Higgs had been cornered...
  9. R

    Possibility to see Higgs particles at the International Linear Collider

    I was wondering, if there was a hint or a strong signal of a Higgs particle existing around the 125 GeV region whether the possible future International Linear Collider would be able to probe that energy and produce Higgs to study? Also, if this is true, is it also true that the linear collider...
  10. C

    Abelian Higgs model and conserved vortex current

    Refer page-24 in http://arxiv.org/abs/1010.0443v3 Eq-6.19 is supposed to be the Lagrangian of Abelian-Higgs models. Eg-6.19 is clearly a conserved current of U(1) symmetry. But I can't show how eq-6.21 is a conserved vortex current. Note: The last term in the Lagrangian is not the usual F_{\mu...
  11. C

    Higgs Confusion (The Higgs Era )

    Higgs Confusion (The Higgs "Era") I thought I understood the basic concepts behind the Higgs mechanism (spontaneous symmetry breaking and such). But I've read a couple of sources that talk about the "Higgs Era" - the period shortly after the BB when the U was still hot/dense enough for the...
  12. E

    Exploring the Possible Role of the Higgs Boson in Gravity

    If the Higgs gives mass, wouldn't the Higgs give gravity too? If it exists that is.
  13. S

    Higgs search at LHC til December only?

    Do you believe in the news that by December if no Higgs were found. It is like there are really no Higgs because the search windows have been narrowed down already to no more gap by December 31? If there were no Higgs. What other tests or results can the LHC design to see that can explain...
  14. B

    Higgs Particles: Space Expansion & Creation of Particles

    Just curious. As Space expands in our universe, does the space between Higgs particles expand or are more particles created to full the void?
  15. F

    No Higgs [at the LHC] - Anthem of a young theoretical physicist.

    Thought some people here might enjoy a little video we made: For context: Everybody involved in this project, in front of and behind the camera, is actually a theoretical physicist. This should obviously be taken as tongue in cheek, and it is not directed against string theory in...
  16. L

    Exponential expansion and Higgs mechanism

    Our universe apparently has a positive cosmological constant so it will look more and more like de Sitter spacetime, expanding at at exponentially increasing rate. So eventually it seems that subatomic spacetime would be affected by this. Eventually even something a Planck distance away would...
  17. R

    Exploring the Higgs Theory & Koide Formula for Lepton Masses

    I was wondering if Higgs theory offers an explanation for why the Koide formula gives such precise masses for the leptons? I would assume that any theory of mass would be able to predict the masses of particles, especially for ones where precise relations have been found between them like the...
  18. V

    Higgs Model Equations: Find the Equation Here

    Where can get the Higgs equation for his model?
  19. P

    Question regarding Higgs boson

    Hi to all, I am an electrical engineer so my knowledge about "heavy" physics is somewhat limited. I like reading about ( only superficially ) this "heavy" physics so I am puzzled about something and I need your help. Is Higgs boson strongly related with Higgs mechanism? We all know that...
  20. P

    Is CERN shutting its Higgs Program?

    This is an extremely speculative post. I came to know through a friend of mine, that his professor told him that CERN is going to announce by spring 2012 the closure of all Higgs and Supersymmetry related programs. I do not have any citation for this claim. More knowledgeable people can tell me...
  21. 1

    Interaction with the Higgs Boson

    Do we already know enough about the Higgs to be certain that we cannot interact with it(i.e. exert any type of control over it, like we can with electrons) or is there room for discovery there? I was just pondering some implications of such an ability, and realized that I don't know if the...
  22. R

    You're all wrong about the Higgs boson This is how it really works

    Somehow stumbled across this website Can't tell if it's made by a real physicist as a joke/parody or by someone who was dropped a few too many times. It looks like a lot of effort went into those diagrams though...
  23. 1

    First steps after the Higgs Boson

    The standard model predicts, and relies on, the higgs boson. We have not witnessed it yet, because the energies required to do so were beyond us in the past. Current models predict, however, that (if the Higgs Boson exists) CERN WILL see it. I know its still early, but CERN hasn't turned up...
  24. M

    Tau sneutrino as tachyonic Higgs

    I can't resist voicing this idea. You can see its genesis http://johncostella.wordpress.com/2011/09/28/could-the-opera-tachyon-be-the-unbroken-higgs/" also contributed. The "logic" is as follows: The unbroken Higgs is a tachyonic object already found in the standard model. OPERA's FTL...
  25. K

    Does String Theory Necessitate the Existence of Multiple Higgs Bosons?

    I read an interesting article http://www.scientificamerican.com/article.cfm?id=how-does-the-higgs-boson which says that string theory seems to require our world to have a property called supersymmetry and also, I have heard that the supersymmetry requires the eexistence of at least 5 Higgs...
  26. J

    Could the Higgs mass be very light (< 1ev)?

    Has a very light (less than 1eV) Higgs mass been excluded by theory and/or experiment?
  27. L

    If there is no Higgs particle to be found

    ..what then? What the are possible alternative theories then? thanks
  28. Dadface

    What if the Higgs is not discovered?

    If the Higgs is not discovered with the present generation of machines then would that really be an important discovery in its own right and could the tax paying public be convinced that their money had been well spent?
  29. E

    What is the global significance of a 5-sigma Higgs signal?

    What were so strong arguments, that they go to such measurement? Why it is wrong to say simply, that Higgs does not exist? Why it is necessary?
  30. K

    Help in clearing up Higgs boson/field

    I've had people explain this to me and I've watched a few videos but I'm still confused. Particles interacting with the 'Higgs field' gives them mass, but how much they interact with the field is determined by the mass of the particle in the first place. That doesn't seem to make sense so...
  31. S

    Exploring the Possibility of the Higgs Boson Being a Wave

    Why must it be a particle? I mean, if sub-atomic particles act as a wave and a particle why can't the higgs? Maybe the only reason we can't detect it is because we're looking for the particle and not the wave? Can someone please elaborate on this.
  32. phinds

    Some energy levels ruled out for Higgs

    http://www.bbc.co.uk/news/science-environment-14258601
  33. marcus

    22 July rumor: Higgs at 144 GeV and anti-Higgs at 350 GeV (comment?)

    http://www.math.columbia.edu/~woit/wordpress/?p=3851&cpage=1#comment-95199 "News from EPS: a higgs at 144 GeV and a anti-Higgs at 350 GeV" Blogging from the EPS meeting at Grenoble. As of 22 July: ATLAS and CMS Summarize Their Higgs Searches...
  34. M

    Higgs Field, Big Bang & Negative Pressure: Questions Explained

    The Big Bang is seen by Alan Guth as having been produced by a relatively short burst of negative pressure, as a result of a high energy state that is temporarily trapped on some sort of non-zero plateau in the vacuum. I have a quote here from a popular science book by Green to clarify things...
  35. S

    The New Dijet Particle in the Tevatron IS the Higgs

    http://arxiv.org/abs/1104.4642 Abstract "The newly found \cite{CDFnew} dijet peak in the 120 GeV to 160 GeV mass region produced in co-production with W IS actually a Higgs Boson in spite of the expectation of a different decay pattern for most Higgses. Our point, however, is that the bound...
  36. B

    Exploring the Higgs Boson: A Deeper Look

    I vaguely know the Higgs boson and how it possibly explains how mass doesn't dissipate. However, I need a more in-depth explanation, preferably not Wikipedia's, about it. Thank you!
  37. G

    Has Fermilab "Shot Down" Higgs Boson Theory?

    I've read a couple articles about the recent incident at fermilab last week about them overlooking something. The Dzero team found something they missed. Well in the end it is said that the odds of the "god particle" being real have significantly gone down due to the results of this last...
  38. Islam Hassan

    Higgs Field vs Fields Giving Rise to Virtual Particles

    Is the field of the theorized Higgs particle totally distinct from those fields which give rise to fleeting virtual particles? Would the latter also have some kind of 'drag' effect on elementary particles like the Higgs is thought to do? IH
  39. A

    Higgs field at the event horizon

    If the postulated Higgs field has a non-zero vacuum expectation, shouldn't the typical black hole be ingesting Higgs particles at an alarming rate?
  40. T

    Space-Time Higgs field interchangability?

    I apologize if this is a nonsensical suggestion/question. I would also like to apologize if this has been placed in the wrong forum. While surfing the Internet I suddenly had a thought. Could the Higgs field (HF after this) be interchangeable or combined with Space-Time? (to be called "ST"...
  41. K

    The Higgs Mass and Spontaneous Symmetry Breaking in Cosmology

    Hello, I am searching for information about the higgs mass before and after the symetry breaking. Does it depend on the temperature? I know other particles are not expected to have a mass before symetry breaking, but I suppose the higgs itself does. I don't find much informations about and I...
  42. J

    Spontaneous symmetry breaking, Higgs mech, and particles getting masses?

    I'm trying to get a basic picture in my head of particles having mass. I always seem to come across the ridiculously vague statement that "the Higgs mechanism gives particles mass", and a passing mention of "spontaneous symmetry breaking". There is a lot of stuff confusing me at the minute so...
  43. T

    What is the role of a 1+15 Higgs-sector in GUTs?

    Hi guy's, this is my first thread at Physics-forums. I am currently working on GUT's and try to learn the Higgs mechanism. Therefore my supervisor gave me a toy model. This model is a SU(4) gauge theory with a infinite series of 4+ \bar 4 as Matter fields (fermions) and a Higgs sector which...
  44. J

    Does the Higgs field explain anything or go in circles?

    This might be a bit of a naive question but I am only just starting to learn the very basics of this stuff. I'm hearing about being able to account for the mass of, well, massive particles, by saying that in our cool universe, there is this field pervading all of space that certain...
  45. V

    Higgs and Antimatter explosive yield

    http://science.discovery.com/tv/through-the-wormhole/episodes/what-are-we-made-of/ Discovery channel is running a very excellent episode on particle physics & the LHC hosted by Morgan Freeman and they mentioned something which I want to inquire further. It is mentioned in the program that...
  46. N

    Geometry of Space-Time, Mass & Speed: Higgs Boson

    How does moving at near the speed of light affect the geometry of space-time? How does an object increase in mass in relation to its speed? Does this have to with more collisions with the theoretical Higgs boson?
  47. G

    Higgs Boson & Graviton: Same or Different?

    Is the Higgs boson and the Graviton two descriptions of the same thing?
  48. D

    Relation between Higgs boson and graviton

    The graviton (spin 2) and the Higgs boson (spin 0) are both involved in gravity. The Higgs carrying mass, and the graviton carrying the gravitational interaction. On the internet I red that a lot of people wonder if there is a connection. In electroweak interaction the forces are carried by...
  49. I

    If the Higgs is 'responsible' for the mass

    If the Higgs is responsible for the mass in the universe, but the Higgs itself has mass, then isn't that a little weird? It kind of has 'god' undertones in that sense. Is that actually why it's called (by some people) 'the God particle'? Thanks.
  50. P

    How many inverse femtobarns at 7 TeV to find Higgs?

    If the Higgs mass is around 115 GeV, how many inverse femtobarns at 7 TeV are needed to find the Higgs?
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