Standard Definition and 1000 Threads

"Beyond the Standard Model" hep-ph/0611279 Beyond the Standard Model Authors: Dmitri I. Kazakov Moscow 2006 Report-no: 2006 Review of recent developments in attempts to go beyond the Standard Model is given. We concentrate on three main unresolved problems: mechanism of electroweak...

Hey all. Im doing maths methods 5 (i live in Australia) and I've run into this problem. A university study investigated the increase in heart rates(measured in beats per minute) of people undertaking a particular exercise. The increases in heart rate were normally distributed with...

I put a notice of this earlier today in the QG links thread https://www.physicsforums.com/showpost.php?p=1134904&postcount=529 https://www.physicsforums.com/showthread.php?p=1134904#post1134904 This thread is in case anyone wishes to discuss the paper: http://arxiv.org/abs/hep-th/0610241...

I've google and read, but could anyone tell me how to find out the standard enthalpy of formation for any compound? :confused: thnx

I would like a little clarification in how to prove that the k topology on R is strictly finer than the standard topology on R. They have a proof of this in Munkres' book. I know how to prove that its finer, but the part that shows it to be strictly finer I am not sure. It says given the basis...

Here's the problem: We are ascending in an elevator at sea level. Our eardrums feel a 1 percent decrease in pressure per minute. Calculate the upward speed of the elevator. My solution: *I am using the equation p1/p0 = (T1/T0)^(-g/aR), where p1 and p0 are pressure at point 1 and point 0...

How is it not an exactly accurate understanding that QCD is a part/sector of the standard model of particle physics ? Or, it actually is?

http://arxiv.org/abs/astro-ph/0608324 Cosmological Implications of the Second Parameter of Type Ia Supernovae Authors: Philipp Podsiadlowski (Oxford), Paolo A. Mazzali (MPA, Munich; Trieste), Pierre Lesaffre (Oxford, Cambridge, Paris), Christian Wolf (Oxford), Francisco Forster (Oxford)...

how many propreties of particles of the standard model has lqg been able to describe within its conceptual framework, as opposed to string theory? recently i posted "lee smolin & standard model" evidently loop quantum gravity might be able to model some elementary particles properties...

http://www.newscientist.com/channel/fundamentals/mg19125645.800 sounds like string theory, all particles from vibrations. how successful has this theory been in comparison to string theory, on particle physics? "physical particles may seem very different from the space-time they inhabit, but...

http://arxiv.org/abs/hep-ph/0608079 CP Studies and Non-Standard Higgs Physics Authors: S. Kraml, E. Accomando, A.G. Akeroyd, E. Akhmetzyanova, J. Albert, A. Alves, N. Amapane, M. Aoki, G. Azuelos, S. Baffioni, A. Ballestrero, V. Barger, A. Bartl, P. Bechtle, G. Belanger, A. Belhouari, R...

This is page #293 of the 1-st volume from 2-nd edition of Apostol's "Calculus & Linear Algebra". Well, the question goes like this: Can you find a flagrant error in this page...? Daniel.

No crackpot stuff her please, i would like a collection of known scientists thoughts that are beyond the standard model, Hawking has some good stuff :zzz: what are your favourites?

Berkeley writes : " Note that the dynamics of the Universe are not determined entirely by the geometry (open, closed or flat) unless the Universe contains only matter. In our Universe, where most of Omega comes from dark energy, this relation between the mass density, spatial curvature and...

Ok, so I'm sure that I worded the topic of this thread poorly, but I'm a little lost as to exactly how to explain my problem. As such, I'll just lay out everyting in some detail and hope those of you with more stats expertise will understand :o) The problem: * I have data from 5 subjects...

I have a couple of things I need help on: 1. How do I calculate the standard enthalpy change for a reaction? example: 2SO_2 (g) + O_2(g) \rightarrow 2 SO_3(g) What information do I need to calculate standard enthalpy change? What's the symbol for standard enthalpy change? Thanks...

Ok I've got a maths exam on monday and one of the things that is going to be inside it is standard deviation. Problem is I don't get it one bit. I tried googling it but I didn't understand any of it. Could someone explain to me how I would find the estimated standard deviation for the...

Hello Folks! Though I have written my own paper (http://arxiv.org/abs/math.DG/0605709) , I am still a novice in Standard Model. Therefore, I have some questions for experts. The modules squares of the fermion wave functions are interpreted as the probability densities for the particles to...

Hi! How to use a A4 paper to form a largerest volume block?

I am working on a primatology project where I need to find a way to measure and plot the (somewhat arbitary) level of variation in behavior (ie from one individual to the next) within a single species and then compare it to another species level of variation. I have entered the data for the...

Calculate the standard enthalpy change for the reaction 2C8H18(l)+ 21 O2(g)-->8CO(g)+8CO2(g)+18H2O(l) Given: 2C8H18(l)+25 O2(g)--> 16CO2(g)+18H2O(l) H=-11,020kJ/mol 2CO(g)+ O2(g)-->2CO2(g) H=-566.0kJ/mol I just can't get it to cancel out from the given, to calculate the stardard...

What do you think will we discover with the LHC? And what will we learn from it? Reference: http://arxiv.org/abs/hep-ph/0602198" I.e. how realistic do you think is the discovery of extra-dimensions, black holes, supersymmetry, the one more probable than the other, and what if (!) they...

Can someone let me know how to compute the standard deviation on the TI-83.:smile: Thanks, Home Decoration

1) The strongest reducing agent from those listed is: Use your book. a. Fe+3 b. Fe+2 c. Al+3 d. Al After looking at the chart of reduction potentials in my book, is it Al? 2) Select the reagent that will transform Fe+3 to Fe+2. a. H2 b. O2...

A quantity 'X' has a standard error 's' if 'X' is inverted ie. X^-1 what do I do with 's'?

Is the Standard Model overly speculative ... Or does it need intelligent, freer interpretation ...?-- cf "One part of the Standard Model is not yet well established. We do not know what causes the fundamental particles to have masses. The simplest idea is called the Higgs mechanism. This...

Are my final values correct? 1. Determine the free energy change associated with the formation of methanol from carbon monoxide and hydrogen gas if the partial pressure of CO is 1.0700 atm, H2 is 2.2800 atm, and CH3OH is 0.0600 atm at 298K. The standard free energy of formation for methanol...

Would anyone happen to know where I could find the standard Rf values (for Chlorophyll a, Chlorophyll b, Xanthophyll, and Carotene) if varsol is the solvent? I'm trying to identify those plant pigments via Paper Chromatography, and I'd like to compare my results to the standards. The problem is...

Just a quick question as I'm writing up my coursework. I'm calculating the standard deviation of a sample, my data is rate of reaction defined as \frac{1}{time} \times 10^{-3}. So my input data is say 0.847, but the absolute value is 0.000847. The standard deviation formula returned a value...

http://arxiv.org/abs/hep-th/0603022 Quantum Gravity and the Standard Model Sundance O. Bilson-Thompson, Fotini Markopoulou, Lee Smolin 12 pages, 21 figures "We show that a class of background independent models of quantum spacetime have local excitations that can be mapped to the first...

I was looking through product info this morning and noticed (it got no press that I saw) that the DOE, after a protracted battle with the HVAC industry, started enforcing its new 13 SEER (up from 10 SEER) energy efficiency standard for all new a/c units sold in the US. The primary...

Standard Model help requested... Hi all, I hope this is the appropriate forum for asking about the Standard Model of particle physics. My formal education covered only chemistry, semiconductor physics, classical physics, special relativity, and introductory quantum mechanics. So my...

I have no idea how to start this problem or what equations I would need, if any. Below is the problem, and after that, I include my failed attempts at this problem. The problem: ------------------------------------------------------------------------ Students at Eastern Illinois University...

Model, well i doubt if anyone can give a clear discription of what that is, to me everything is up for grabs, or is there some definitive information out there unknown to me, if any long suffering member can tell me where standard meets non standard it would be much appreciated.

Let us assume that X has Bernoulli distribution, with P(X = 1) = p and P(X = 0) = q = 1 - p. Of course, E(X) = p and Var(X) = pq. Now, since pq < 1, standard deviation is bigger than variance. I have got the following question: Does this fact make standard deviations and theorems based on...

I had my first lecture on the Standard Model today. The lecturer presented the Lagrangian for the Standard Model, which took up two slides. However, it contained terms that referred explicitly to the Higgs field, whereas I was under the impression that the Standard Model didn't need the Higgs...

my normally icy heart melted when Kea approvingly mentioned Standard Muddle, attributing the coinage to me. it was in some locked thread, best forgotten, so I did not have an opportunity to reply. Kea: Marcus' Beyond the Standard Muddle is better. Plurals are unnecessary. What sight so...

A few years ago BNL did some experiments measuring muon g-2. At the time there was a significant enough difference from the calculations based on the Standard Model to raise questions about SM. Since then I've seen papers indicating that SM was probably OK, with the discrepancy being due to...

hi this is a simple question but for some reason it's not clicking. A ball of mass 0.5kg is pulled across a smooth horizontal floor by a horizontal string attached to the dog. The tension in the string is 0.75N. Calculate the acceleration produced. Given the ball starts from rest, determine...

Recently I have posted a preprint on the web (http://xxx.lanl.gov/abs/hep-ph/0502142) that contradicts the conclusion of the unification of electroweak interactions, which is the very reason the Standard Model is awarded Nobel prize. Before putting this preprint, I have asked as many...

Umm its tough to see so I'll write the question too... The standard deviation of the annual growth rates of a mutual fund is an indicator of how volitile or risky the fund is. Determine the upper and lower limits of the annual growth rate for each fund, such that there is a 0.75 probability...

As far as I know QED is taught at the graduate level. However, how many physics students end up taking courses on it? Is it standard to take courses on QED or is it only out of interest, or "need"?

You can read lots of these - http://skyandtelescope.com/news/article_1649_1.asp", for example - I thought it might be fun to take a different view! :smile: What were the most notable non-discoveries for 2005? What were the most outstanding failures? I'll go first. In the second...

some examples: 1) inflation that turns on, then magically switches off simultaneously in causally-disconnected parts of the universe. 2) DM 3) DE 4) cosmological expansion that slowed nicely for billions of years, then accelerated (again, simultaneously in causally-disconnected parts of the...

A Geometric Approach to the Standard Model Greg Trayling, Dept of Phys, U. Windsor, Windsor, Ontario A geometric approach to the standard model of the Clifford algebra \mathcal{CL}_7 is advanced. The gauge symmetries and charge assignments of the fundamental fermions are seen to arise from a...

One way to achieve a degree of unification in physics would be to show how key aspects of the Standard Model of particle theory emerge from Loop Quantum Gravity. At the October QG conference Lee Smolin offered some ideas as to how that might happen. It involved having the links of the spin...

Ok, on this one I have no idea where to start. I could do all the homework ones, but have no clue even where to start on this. To me it seems backwards, but who knows. Here is the question: Calculate the standard heat of formation of acetaldehyde, CH_{3}CHO , given the following information...

Hello everyone I'm suppose to find the standard matrix A of T, R^2 -> R^3; I have all the work here, any help would be great: http://img138.imageshack.us/img138/6602/lastscan2rm.opt.jpg

new preprint http://arxiv.org/abs/hep-th/0511086 Calabi-Yau Manifolds and the Standard Model John C. Baez 4 pages "For any subgroup G of O(n), define a "G-manifold" to be an n-dimensional Riemannian manifold whose holonomy group is contained in G. Then a G-manifold where G is the Standard Model...

Interesting post here http://motls.blogspot.com/2005/10/heterotic-mssm.html#comments It seems that a group of researchers has constructed a Calabi-Yau compactification that reproduces that particles of the standard model. The also obtain the SO(10) GUT group, and seem to get rid of some of...