Particle physics Definition and 537 Threads

Quantum field theory or particle physics what first? Hi at present I am confused whether i should try obtining a firm conceptual understanding of QFT before jumping to particle physics or whether aa very brief overview of QFT is enough ?

My first post! Bear with me here - I'm a weekend warrior of particle physics and am just learning because it amazes me. In my journey through nuclear fusion and quantum theory, I first learned that our sun isn't big enough to overcome the Coulomb barrier between two protons necessary to...

Homework Statement Tertiary neutrino and muon beams can be formed using pion -> muon + neutrino decays from a high intensity, high energy secondary pion beam. Consider a secondary pion beam of 100 GeV/c momentum and assume that the neutrinos have a mass of a few eV. Within what angular cone...

I have this weird question where the thickness of the material is given in \frac{grams}{cm^2}. And it's not wrong. What does it mean ?

On this forum, quantum field theory (QFT) is a part of this subforum (Quantum Physics), while particle physics is a subject of another forum. These two topics - QFT and particle physics - are clearly separated. On the other hand, most textbooks on QFT are also textbooks on particle physics...

I'll be starting my PhD this fall, and I intend on entering the field of Theoretical Particle Physics. I was just wondering what I could do to get a head start in the next two months that would help me secure some positions for research within the school. I figure I'd need to pick up a book on...

I intend for this to be in General Discussion, which is why I put it here, please don't move it, but move it if you reeally have to. :frown: http://www-d0.fnal.gov/Run2Physics/WWW/results/prelim/HIGGS/H23/H23.pdf I don't know much about particle accelerator data, but page 6 looks pretty...

I'm starting an MSc in theoretical physics this October, and at the moment I'm considering specialising in Condensed Matter or Particle Physics, both of which look quite interesting. I was wondering which one had better career prospects. I suspect it's easier to get a well paid research job in...

I forget the problem exactly but the general solution is good. I believe it was a neutral pion decaying into two photons I don't know the numbers but I'm given momentum and it's gigantic, some GeV, opposed to the wussy pion mass so it's way relativistic I could do the first part easy, it...

I attended a string theory lecture this afternoon at the Joint Particle Physics 2006 meeting in Hawaii. One of the string theory parallel lectures caught my eye: Can string theory make predictions for particle physics? Washington Taylor, MIT The appearance in string theory of a wide range...

http://www.amazon.com/gp/bestsellers/books/278434/ref=pd_ts_b_nav/026-8303087-5718006&tag= The UK edition of Not Even Wrong is running ahead of Lisa Randall's Warped Passages, and Brian Greene's two most popular books: The Elegant Universe and The Fabric of the Cosmos, at least according to...

Book question -- Nuclear and Particle Physics Has anyone out there read BR Martin's new book: "Nuclear and Particle Physics, An introduction" ?? There is no review in Amazon and I was wondering if it is any good?

Hello everyone. I'm someone who is very interested in Particle Physics and their very nature. I could keep going:rolleyes: . I tend to annoy most people by logic reasoning by the laws of physics . So, I hope I'm welcome! S.

Hi all, I'm a rising sophomore in college and intern at SLAC. I'm trying to pick up a little bit more of a background in particle physics so I can analyze rare B decays. I've read a few books that have covered particle physics, but I've just picked up the flavor of it (no pun intended). I'm...

With any luck, sometime soon you can read this paper on the arXiv: Aristide Baratin and Laurent Freidel Hidden quantum gravity in 4d Feynman diagrams: emergence of spin foams The idea is that any ordinary quantum field theory in 4d Minkowski spacetime can be reformulated as a spin foam...

Need "particle physics" Refrence hi:smile: actually , i am looking for a good book that i could down load freely throw the internet . i am studying physics at Damascus univ , Syria >>> thanks

Anyone know of any specific colleges that offer degrees in one or both? I haven't seen many with degrees in Particle Physics. Thanks!

Ok, here is the deal (you might laugh so hard that you hit your head in your screen;P) I had saved a link about particle physics from PF a while ago: http://www.kuro5hin.org/story/2002/5/1/3712/31700 My problem is that i can't remember if it was a good link or a paper that was debunked...

I heard from a particle physics lecture that no one (till now) knows what charge is. We know the interactions of things with charges and more or less its connections with other things, e.g. through electrodynamics, but no one can say what charge is. It is the same with time. I think something...

group theory is an integral part of particle physics and one needs a good understanding of this before one switches on to reading particle phy ...please give me a good reference for this ... i m new to both group theory and particle physics ...thosugh i 've read about the historical evolutions...

Here's the problem: " A particle is in its first excited state with energy E[SIZE=1]a, [SIZE=2]before it decays to its ground state with energy E[SIZE=1]g [SIZE=2]by emitting a photon with an energy hbar*omega (omega = 2Pi*frequency) Why will the photon energy be smaller than DE= Ea -...

What's the best particle physics book for a bigginer? Thanks.

Im wondering if anyone could help me on what math to study for particle physics. So far I have taught myself calculus (differential calc through vector analysis), differential equations (ordinary and partial), and I am currently studying linear algebra, and abstract algebra. I really want to...

Foxtrot cartoon for July 3, 2005: http://www.ucomics.com/foxtrot/2005/07/03/ The solution should be obvious to readers of the thread. Carl

What technologies can be considered as offsprings of particle physics? (both everyday-life technologies and others).

Did I say Particle Physics? I shouldn't have said that. I don't know much about it. But still, what I came upto recently was this :- I read somewhere that unstable nuclides can disintegrate in several ways, beta decay and positron decay being two of them. In beta decay, a neutron gets...

like the title thanks

1) What percentage of incident photon radiation passes through 5 mm of material whose absorption coefficient is 0.7 mm^-1? What is an absorption length? I am lost here. Any input ...some mathematical formula for the absoprtion coefficient...would be a great help to me. 2) Why is the mean...

Hi I am just in my first yr doing a physical & life sciences degree, Its a 3 yr course for ordinary degree & 4 yrs for honours degree, but in the second year I have to choose in which direction I am heading in, ie for physics, Chemistry, or Biology. Im choosing physics & then after this...

I was wondering who you thaught is most responicle for todays development of particle physics?

This should be an easy general question to someone out there. My "quarks and Leptons" book by Halzen and Martin introduces the term "phase space" 50 pages before the index reference, and never seems to define it. What is phase space in this context? Thanks

Hello, I've been doing some extra reading in Physics and there are some certain aspects that I don't understand. I'd appreciate some people explaining to me what they mean. 1.) Wave Function 2.) Intrinsic Angular momentum 3.) Relativistic 4.) The Coupling Constant 5.) Spin is...

hello everyone. I have a limited background in particle physics (books). I was wondering if someone can help me with definitions of what certain particles are and what their names pertain to. No need to explain basic stuff (protons, neutrons, neutrinos, electrons, photons, positrons, gravitons...

I holp someone can help me to write an essary on elementary particle physics covering all the following topics 1.fundamental forcies 2.conservation laws 3.field and quanta 4.quarks i'm sorry about my bad English and very thanks for every one to have see my topics. :smile:

I'm just about to start a piece of research project on particle physics. Can anyone give me some useful ideas and websites containing useful information? I just want to have a general idea about it. Also interesting things that I can do with Particles. What types of theories are linked to...

What is the standard model?

I'd really appreciate any help you can give me with the following questions: Use lepton universality and lepton-quark symmetry (ignore quark mixing) to estimate the branching ratios for: a) b -> c + e- + anti-electronneutrino b) tau -> e- + anti-electronneutrino + tauneutrino Surely...