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Physics Stack Exchange users whose comments are worth studying include Lubos Motl and Ron Maimon (now at http://www.quora.com/Ron-Maimon and http://www.physicsoverflow.org/user/Ron+Maimon). Also see http://arxiv.org/abs/hep-ph/0207124 for a review of physics since the standard model.


Jan
21
awarded  Yearling
Jan
9
comment Why are cosmic conspiracies considered undesirable in quantum interpretations?
The basic objection is that such "conspiracies" evolve extremely improbable events. It's like the "theory" that there is no human being behind your posts, instead there was a cat walking randomly on a keyboard which by chance just happened to create meaningful sentences and post them to this site.
Dec
28
comment CP violation from the Electroweak SU(2)$_{weak,flavor}$ by $\int \theta F \wedge F $
See section 2 of arxiv.org/abs/hep-ph/9305271
Dec
6
accepted What is the experimental status of the G2-MSSM?
Dec
6
asked What is the experimental status of the G2-MSSM?
Nov
30
comment What prevents an atom's electrons from “collapsing” onto its protons?
The uncertainty principle prevents the innermost electron from simply becoming completely localized on top of the proton (because, if the electron is at rest, there will be a corresponding spread in its momentum values, translating to a spatial spread of its wavefunction), and then the other electrons are kept even further out by Pauli exclusion.
Nov
30
comment Proof that QCD is the theory describing strong interactions?
Some form of Regge theory probably holds true within QCD. But it would be a very technical topic.
Nov
29
comment One-loop beta functions of the Standard Model
What are "energy scale independent combinations of renormalization group equations"? Are they combinations of beta functions that equal zero?
Nov
24
awarded  Nice Answer
Nov
22
comment Reference request: Hollow concave Earth hypothesis
I suggest that you try to find a university library which has physical copies of that issue of the journal, and then find someone at the university who can photocopy the article for you.
Nov
21
comment How much of the mass of a supermassive black hole comes from dark matter?
The main DM debate over quasars seems to be whether they are located in the biggest concentrations of DM or not. arxiv.org/abs/1305.2199 says not... For the other view, look up "dark gulping" for the idea that supermassive black holes formed from DM.
Nov
21
answered How much of the mass of a supermassive black hole comes from dark matter?
Nov
19
comment What is weak interaction? I need easy and short answer
The weak force is a very weak force between left-handed particles, that can also transform them (electron to neutrino, or vice versa; one quark to another type of quark).
Nov
14
comment Why do we need to find 5 Higgs Bosons to prove the existence of the dark matter?
Some of the other new particles in the supersymmetric standard model could be the dark matter. But the dark matter could also be something quite different, like right-handed neutrinos. So the reality is more the reverse of what you said or what you heard: if the dark matter is explained by supersymmetry, then there should be 4 more Higgs bosons out there.
Nov
14
comment Why do we need to find 5 Higgs Bosons to prove the existence of the dark matter?
Neuneck is saying the right thing, as is confirmed by all those upvotes... Three parts of the Higgs field become part of W+,W-,Z bosons. In the standard model, the Higgs field has 4 parts so one part is left over and that is "the" Higgs boson. In the supersymmetric standard model, there are two 4-part Higgs fields, so eight parts, so there are five different Higgs bosons left over after Ws and Z get their masses.
Nov
6
comment Hilbert Space of (quantum) Gauge theory
You would really need an infinite one-parameter family of Hilbert spaces, to reflect cutoff-dependence of all quantities. As for ghosts, they might be formally present in the Hilbert space, but projected out later.
Nov
3
comment Formulation and probability of a wave-function
A time-dependent wavefunction has the form "(psi at time zero) times (e to the -iEt)" only if "psi at time zero" is an energy eigenstate, i.e. predicts that energy value with 100% probability. Do you know about eigenstates yet?
Nov
3
comment Could dark matter be a kind of Goldstone boson?
Incidentally, Steven Weinberg recently suggested that Goldstones of a dark U(1) have left traces in the CMB along with the neutrinos, arxiv.org/abs/1305.1971
Nov
3
comment what does “medium-induced gluon radiation” mean
It's gluon radiation induced by a medium.
Nov
2
comment Black-hole firewall and holographic principle
It might be best if we created a room on chat.physics.SE or otherwise had a dialogue about these topics.