A particle that emerges from the theoretical mechanism that is thought to give other particles mass.
4
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72 views
Is the 125 GeV Higgs boson some kind of a “almost-commutative graviton” at the electroweak scale?
Just like the graviton is a hypothetical elementary particle that mediates the force of gravitation in the framework of quantum field theory, I wonder if one could argue that the Higgs boson observed ...
5
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2answers
235 views
Your Mass is NOT from Higgs Boson
Your Mass is NOT from Higgs Boson?
http://www.youtube.com/watch?v=Ztc6QPNUqls
This guy can't be correct, right? He argues that because mostly of a nucleus' mass is made out of the space between ...
0
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1answer
102 views
Relation between Higgs boson and force of gravitation
I don't know and I can't handle it. I am so much curious about the recent discoveries in science. European Space Agency and NASA are doing great work. Hats up to these institutions. My nights are ...
4
votes
2answers
256 views
Basic question on experimental plots
On the following Higgs $\rightarrow$ Tau Tau plot, since we are plotting the ratio of $\frac{\sigma}{\sigma_{SM}}$ on the y axis, shouldn't the expected for this be 1? i.e., shouldn't the expected 68% ...
6
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1answer
71 views
Higgs boson mass and electroweak energy scale
Is it a coincidence that the mass of the Higgs boson is exactly half the electroweak energy scale?
2
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1answer
277 views
Is Connes model a composite Higgs in disguise?
Most of the 5-dimensional Higgs models can be seen, if I understand correctly, as models where the Higgs is a composite.
Now, is this true for Connes models? It is a model of extra dimensions too, ...
3
votes
2answers
125 views
Do any good theories exist on why the weak interaction is so profoundly chiral?
I find the profound asymmetry in the sensitivity of left and right chiral particles to be one of the most remarkable analytical observations captured in the Standard Model. Yet for some, I've not ...
5
votes
2answers
143 views
If helicity can suppress weak decay of $\pi^{\pm}$, doesn't that make chiralty observer dependent?
I have been under the impression that chirality is at least in part a way to sneak in a Lorentz invariant version of helicity for particles that mass. Flip Tanedo seems to espouse this view in a ...
10
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2answers
1k views
Higgs Boson mass in Electron volts?
Im no physics genius here, I was just interested in the Higgs Boson so I was reading this article : How the Discovery of the Higgs Boson Could Break Physics
I came across this
Furthermore, ...
4
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0answers
61 views
Are oscillations of electron chirality experimentally observable?
Is there any plausible experiment by which chirality oscillations in electrons could be observed experimentally, such as through some analogy to neutrino oscillation experiments?
0
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0answers
23 views
What are the potential technological advances that the discovery of the Higgs boson may unlock? [duplicate]
Lately I have been reading a lot about the discovery of the Higgs boson and it got me thinking, what is the potential application of this particle? I mean can the Higgs Boson change our world the way ...
8
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4answers
2k views
Why don’t photons interact with the Higgs field?
Why don’t photons interact with the Higgs field and hence remain massless?
8
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2answers
2k views
How does the Higgs Boson gain mass itself?
If the Higgs field gives mass to particles, and the Higgs boson itself has mass, does this mean there is some kind of self-interaction?
Also, does the Higgs Boson have zero rest mass and so move at ...
0
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0answers
47 views
What causes the mass of Higgs boson itself? [duplicate]
Current theories stipulate that particles mass is due to :
Quantum chromodynamics (mutual attraction of quarks, i.e. gluon's kinetic energy, circa 98%) and Higgs field (quarks rest mass, circa 2%) ...
9
votes
2answers
3k views
How does the Higgs mechanism work?
I'm not a particle physicist, but I did manage to get through the Feynman lectures without getting too lost.
Is there a way to explain how the Higgs field works, in a way that people like me might ...
4
votes
0answers
36 views
axial and vector resonances in composite higgs models
Is there a reason to believe that the axial resonances be heavier than the vector resonances in the composite higgs models?
For instance, in http://arxiv.org/abs/0808.2071, to have zero tree level ...
5
votes
1answer
256 views
How do physicists know that mass of possible Higgs particle is limited between two values?
How do physicists know that mass of possible Higgs particle is limited between two values 90 GeV/c$^2$ and 145 GeV/c$^2$?
5
votes
1answer
143 views
Why do some particles have a greater mass than others?
The property of mass that almost every particle possesses comes from the Higgs Field. It is this field, which permeates all of space, that particles interact with and hence obtain mass.
But why do ...
0
votes
1answer
195 views
Is it possible to remove the Higgs Field from an object to make it have no mass?
Can you accomplish this in theory? We found the Higgs boson, but can we remove it from particles?
4
votes
5answers
3k views
The Higgs field a new Luminiferous aether?
As of this writing it has been made clear to me that classical physics' Luminiferous aether was a terriblly poor discriptor of space. With the advent of Special Relativity and General Relativity, that ...
4
votes
3answers
281 views
Higgs-Boson/Graviton
The Higgs boson gives particles mass. And the graviton is the theoretical force-carrier of gravity. Gravity depends on mass. So if the Higgs Boson gives things mass, it therefore gives them gravity. ...
3
votes
0answers
70 views
What is the importance of the Higgs-strahlung process in the Higgs search?
I would particularly like to know why this process is considered the main search mode for Tevatron but useless for search at LHC.
4
votes
2answers
591 views
Higgs mass and the hierarchy problem
I was wondering what is the opinion about importance of the hierarchy problem in the hep community? I'm still a student and I don't really understand, why there is so much attention around this issue. ...
0
votes
0answers
55 views
How is the hierarchy problem consistent with the decoupling theorem?
One the one hand we have the hierarchy problem in it's various forms, in my understanding in it's most serious form one could state it as the observation that if there is a heavy mass scale M in ...
6
votes
1answer
96 views
Status of the little hierarchy problem
What is the current thinking on the little hierarchy problem in light of a potential Higgs mass above 120 GeV? A few years ago, at least, I remember various phenomenologists saying that this at least ...
4
votes
2answers
236 views
Vector Boson Fusion
I have been reading about the production mechanisms for the Higgs at the LHC. It is always mentioned that for Vector Boson Fusion, the initial quarks cause jets that are back to back and with a higher ...
10
votes
2answers
69 views
ATLAS Higgs Interpretation
I came across this abstract, and I am curious as to what the ATLAS Team has actually discovered:
Abstract Motivated by the result of the Higgs boson candidates at LEP with a mass of about ...
9
votes
2answers
706 views
What happens to matter in a standard model with zero Higgs VEV?
Suppose you reset the parameters of the standard model so that the Higgs field average value is zero in the vacuum, what would happen to standard matter?
If the fundamental fermions go from a finite ...
8
votes
2answers
2k views
Higgs boson and string theory
Assuming Higgs is found at 125 GeV.Is there any direct or indirect consequence on string theory ? Will it be a blow to string theory or models employing string theory ?
...
4
votes
4answers
2k views
How does Higgs Boson get the rest mass?
Higgs Boson detected at LHC is massive. It has high relativistic mass means it has non-zero rest mass.
Higgs Boson gives other things rest mass. But, how does it get rest mass by itself?
8
votes
1answer
332 views
Could LEP II have discovered a 125GeV Higgs?
LEP II eliminated the Higgs up to 114.5GeV. If it had been run for longer could it have detected a Higgs at 125GeV?
I Googled for this without any luck, though I did find a comment that LEP II topped ...
15
votes
2answers
1k views
If the LHC doesn't find the Higgs Boson, what would be the implications for the Standard Model?
What would be the implications to the Standard Model if the Higgs Boson hadn't been found with the LHC?
Also, if the Higgs Boson had not been found with the LHC, would it have been successfully ...
8
votes
1answer
156 views
why are two higgs doublets required in SUSY?
I can't really understand why two higgs doublets are required in SUSY.
From the literature, I have found opaque explanations that say something along the lines of: the superpotential W must be a ...
3
votes
1answer
235 views
Does field energy create rest mass in QFT theories?
The central importance of Higgs boson would be that the Higgs mechanism gives rest mass to fundamental particles. It seems like a very natural argument that fundamental particles need to be given ...
4
votes
2answers
249 views
What is the relation between the Higgs field and chirality?
Wikipedia states that the spontaneous breaking of chiral symmetry "is responsible for the bulk of the mass (over 99%) of the nucleons".
How do the nucleons gain mass from the spontaneous breaking of ...
3
votes
1answer
372 views
Recent Higgs boson observation and credibility of superstring theories
Data are coming in, and it seems that recent Higgs boson observation is eliminating many SUSY models. If so, what is happening to superstring theories, like M-theory?
3
votes
1answer
223 views
Higgs boson in LHC
Recently,the higgs bosons are discovered in LHC. My question is
How did they come to know that the particle that are created are actually Higgs boson?
On the basis of which properties,they ...
5
votes
1answer
177 views
Spin of Higgs boson 125 GeV
Can someone please explain to me why (according to decay of Higgs boson into 2 photons) Higgs boson cannot have s=1?
Thanks in advance
5
votes
1answer
3k views
How would the discovery of Higgs Boson affect superstring theories?
As we probably all know, a new particle similar to Higgs Boson has been discovered.
If this turns out to be true, standard model will get a boost (as the discovered mass almost equals to the ...
10
votes
1answer
806 views
115 GeV, 170 GeV, and the noncommutative standard model
Several years ago, noncommutative geometry was used to describe the standard model, somehow yielding a prediction of 170 GeV for the mass of the Higgs boson, a prediction which was falsified a few ...
3
votes
1answer
93 views
Origin of Higgs ghosts
In M. Veltman's Diagrammatica, appendix E, one can find the full Standard Model lagrangian. Some sectors (e.g fermion-Higgs and weak sectors) contain so-called Higgs ghosts $\phi^+,\phi^-$ and ...
3
votes
1answer
237 views
Relationship between hierarchy problem and higgs fine tuning?
I often hear of hierarchy problem being used synonymous with Higgs fine tuning (esp with regards with motivations for SUSY). What exactly is the relationship between the two problems? As I understand ...
7
votes
1answer
372 views
Why is the lightest Higgs not a free parameter in SUSY?
In the Standard Model, the Higgs mass doesn't really have any theoretical constraints. It could have basically any value and nothing 'breaks'.
However, in MSSM models, we often see the tree level ...
3
votes
0answers
112 views
Higgs stability in Standard Model
I am a little unclear on what ramifications a negative quartic at high energies has on our world at low energies.
(1) First of all, is it that there is a second, isolated minimum that appears at ...
3
votes
1answer
86 views
Measuring tensor rank of the Higgs resonance
The Higgs boson is the first scalar field ever measured that is fundamental rather than composite. How do high-energy physicists determine that a given resonance in the statistics is either a scalar, ...
5
votes
2answers
249 views
Was the Higgs mass correctly predicted by asymptotic safety of gravity?
This paper was published in Phys Lett B in 2009, and predicted the Higgs mass to be 126 GeV based on the asymptotic safety of gravity. Is this prediction taken seriously by the theory community, or is ...
9
votes
4answers
815 views
Is there an accepted analogy/conceptual aid for the Higgs field?
Is there an accepted analogy / conceptual aid for the Higgs field?
In Physics there are many accepted conceptual aids such as
* Schrödinger's cat
* Maxwell's Demon
* I'm sure I'm missing ...
2
votes
1answer
130 views
Is this a good explanation of the Higgs mechanism? [duplicate]
Possible Duplicate:
Is there an accepted analogy/conceptual aid for the Higgs field?
A video I watched explains the Higgs mechanism as follows.
Take massless particles. These can only ever ...
3
votes
0answers
66 views
Could one theoretically build the Higgs equivalent of a Faraday cage?
My understanding is, within quantum mechanics, in a pure vacuum, all known fields have a lowest energy state of zero. The Higgs field is the only exception -- it's lowest energy state is not zero. ...
-4
votes
1answer
153 views
Why did Standard Model never sense a requirement to include gravitational quantum?
Standard Model is advanced version of Quantum physics. It tried to include everything which came in the way while understanding quantum world. It even didn't bother to include even Higgs Boson which ...
