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Beyond the Standard Model

- Professionally researched theories... strings, branes, & LQG
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Jan16-12 Greg Bernhardt
announcements, btsm, event Sticky Thread Pinned: BtSM Event Announcements ( 1 2 3 ... Last)
This sticky is for announcements of pertinent scientific events, such as conferences, seminars, or public talks. This...
Y 11:17 AM
68 66,537
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Jul14-12 08:32 AM
1 26,577
We currently have a thread about logarithmic corrections to the basic black hole entropy formula. I was thinking about...
May10-12 11:42 AM
9 2,994
Ashoke Sen has written a paper which uses path integrals in Euclidean gravity to...
May9-12 07:47 PM
23 4,119
Just got this issue (also linked to from PF home page): ...
May8-12 06:09 AM
15 4,443
And is a black hole where strings stop vibrating? Like one membrane deadening the vibrations resonating from another...
May7-12 08:22 PM
0 3,090
I was recently reading a small news article named Experiments Show Gravity Is Not an Emergent Phenomenon. Linky. ...
May4-12 06:09 PM
3 1,748
Has anyone read Sach's textbooks and papers? What is incosistent in his approach, as far as I can tell there's...
Apr30-12 09:17 PM
27 9,074
Can anyone give me a general sense of what the quantum master equation (or BV master equation) is and how it relates...
Apr29-12 07:04 PM
4 2,763
I know that cosmic string have intense energy and are apparently leftovers from the big bang and can create a sort of...
Apr27-12 05:12 PM
1 1,959
Tom's thread "Why I'm REALLY disappointed..." continues to get increasingly thought-provoking and informative. I...
Apr27-12 01:10 PM
357 56,127
Hello, I am an amateur physics enthusiast and would like to pose a question to you. It is my understanding that...
Apr26-12 04:35 PM
1 2,309
What are the charges of the X and Y boson? I've been looking through online material, and most doesn't mention...
Apr25-12 07:47 AM
10 2,593
I would like to discuss a puzzle I'm wondering about in loopy approaches to quantum gravity. The puzzle is roughly...
Apr25-12 02:38 AM
60 12,618
I have read in a couple different places that the math that comes out of string theory has helped a couple of...
Apr24-12 07:41 PM
6 2,299
There is a natural way to formulate Loop quantum geometry as the dynamics of line defects in a flat vacuum. Just under...
Apr23-12 09:10 AM
3 1,967
The appearance here of threads such as Causes of loss of interest in the String program and Is string theory really...
Apr23-12 03:48 AM
2 2,111 Fine presentation today, room packed, good questions from audience (esp. from Turok but...
Apr21-12 06:10 PM
49 8,828
Please teach me this: We know that there is a approximate symmetry of time T in physics(together with CP...
Apr19-12 09:15 AM
3 1,659
Einstein's General Realitivity acurately computed the precession of the perihelion of the Mercury, Schwinger's and...
Apr19-12 07:03 AM
6 2,156
Hello all, I am currently a Junior in High School with a deep interest in Physics/Mathematics, specifically in the...
Apr18-12 10:28 AM
4 2,412
My understanding is that Fermi has results that show the mixing angle for neutrinos is not the same as the mixing...
Apr18-12 02:51 AM
1 2,035
The scientific method says that if experiments or observations falsify a theory, that theory must be rejected. String...
Apr16-12 04:21 PM
34 9,726
Hi, In Birrel and Davies ch4 they write: \langle \psi|:T_{ab}:|\psi \rangle =\langle \psi|T_{ab}|\psi \rangle...
Apr14-12 11:45 AM
2 2,103
what is the the easiest way to learn standard model theory ?
Apr14-12 08:57 AM
8 2,778
In LQG the canonical variables are a SU(2) connection A, and the "electric" field E, such that they form a canonical...
Apr12-12 05:44 PM
4 2,005
Hi Everyone, :shy: I read in some paper about the significance of Graviton-Graviton Scattering as a theoretical tool...
Apr10-12 01:31 AM
2 1,735
which particles or phenomena in High energy physics make us needs Noncommutative Solitons in String Theory?
Apr9-12 01:49 PM
0 1,247
==sample quote== It is especially wrong to talk about a mysterious “substance” to denote dark energy. The expression...
Apr9-12 12:32 PM
123 28,119
Suppose we can meld quarks into leptons and leptons into quarks vice versa. Consider the particles to all be the same,...
Apr8-12 08:30 PM
0 1,494
how the decay of proton emerge from GUT Modles, did the group SO(10) contains gravity, or only the strong, weak and...
Apr8-12 05:47 PM
0 1,306
Well, not new insights, but at least new paper and a new face: Particle Physics from...
Apr7-12 08:45 AM
4 2,074
Which and why do you believe will turn out to be more 'fundamental' (in the sense that one will prove to be the...
Apr6-12 02:15 AM
3 1,754
Which talks' input will contribute most to future research in Loop-and-allied quantum gravity? Since the poll is...
Apr5-12 09:32 PM
13 3,205
Carlip has argued that the dimensional reduction in many apprroaches to quantum gravity is related to the BKL limit...
Apr5-12 05:00 PM
2 2,185
i need what we mean by B-L extension of the Standard Model ?
Apr5-12 01:51 PM
1 1,168
Hi all, :shy: Could anyone explain in very simple language, for lower UGrad standard, what spin foams and spin...
Apr4-12 02:29 PM
19 3,794
I am confused about what area is being minimised in the nambu goto action..the one in the target space or the one in...
Apr4-12 10:17 AM
2 1,703
It is supposed that the smallest posible black hole (BH) has mass of Planck's mass. But obviously one nucleon (or...
Apr4-12 08:22 AM
8 2,261
Daniel Schoch, "Gods as Topological Invariants", arXiv:1203.6902 Abstract: We show that the number of gods in a...
Apr4-12 02:50 AM
4 1,785
Please teach me this: Does ''Higgs sector'' mean there are many Higgs particle types?Does custodial SU(2) symmetry...
Apr3-12 11:19 AM
4 3,810 Abstract: We study a self-consistent solution of the semi-classical Einstein...
Apr2-12 10:41 AM
9 2,469

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