Meson Definition and 115 Threads

I have a down quark paired with an anti-charm quark (dc) and I can't find what particle this makes. I checked the PDG's site, but got lost in their list of mesons (they didn't see to get the quark combination, or if they did, they did a good job at hiding it).

Hello everyone, I am a senior physics student doing a paper on the pi meson. The only real website I can find with relevant information towards it is on wikipedia. I don't really want to use that as a source because of the credibility issue which arises with wiki. So I was wondering, (even tried...

Is a baryonium baryon or meson? For example, deutorium, a n-p bound-state, has total spin 0 pr 1, so it is boson, then, it is meson? But it has baryon number (3+3)/3=2. For another example, bound-state of \Lambda_c - \bar{\Lambda_c}, has total spin 0 or 1, so again it is boson, it is meson...

I have some questions about mesons. I don't really understand why they are build up from a quark-antiquark pair. I know from the theory that one can classify the mesons by considering the tensor product of the fundamental representation [3] and the representation [3'] (the prime for denoting...

Imagine the vertex correction diagram in the pseudo-scalar meson theory. The amplitude for this diagram is UV divergent. In order to get rid of this divergence we apply regularization technique and obtain the expression with the UV cut-off parameter. The usual practice is that we expand the...

The excited K* meson has a rest mass of 1.5828E-27 kg/ a What is the rest amss energy in joules? 1.43E-10 b What is this energy in MeVs? 893.75 here's where i need help c Now these K* are accelerated to a speed of 2.97E8 m/sec. What is the relatavistic mass of these K* in kg and MeV/c...

A newly discovered Θ meson has a rest mass energy of 1020 MeV, and electric charge of 0, and a measured energy width of 4 MeV a Using the uncertainty principle, calculate the lifetime of the Θ meson b A Θ meson at rest decays into K+ and K- mesons. Find the total KE of the kaons Thanks...

I've just started an introductory modern physics course, and it's making me ache a bit. I'm unsure about this problem: So, if I calculate the momentum of the two pi mesons in the rest frame of the decaying meson... well... I've gotten that far. I'm not sure if I need to transform the...

In the Meson theory of nuclear forces, exchange of pi meson is given by: n\rightarrow n + \pi^{0} p\rightarrow p + \pi^{0} n\rightarrow p + \pi^{-} p\rightarrow n + \pi^{+} Here the charge is conserved. But I don't understand how mass conservation takes place as in some of the cases a...

I'm just being introduced to particle physics and wondering if I'm going about this correct..can someone help me? thanks The measured width of the J/ψ meson is 88 keV. Estimate its lifetime. Lifetime (s) of J/ψ meson is 8E-21 s Using uncertainty principle: ΔE = h/2πΔt isolate for delta...

could you entangle a charm meson? Is it possible to entangle and teleport a charm meson? I ask this because if you could, it would be traveling faster than light (instantaniously) and if it is traveling faster than light it would have to travel in time, if we could teleport a charm meson...

I just started a class in particle physics this semester, and I really need help on one of our first homework problems. We are supposed to show that while the following decays are allowed: roe(+) --> pi(0)pi(+) roe(-) --> pi(0)pi(-) roe(0) --> pi(+)pi(-) the following decay is not...

What is a charmed meson? What are eta, eta', omega, or phi particles? Is there a site which explains the charm meson decay and defines these other particles.

Chi Meson offline Joined: Aug 2003 Location: Posts: 40 [1.08 /day] Member #: 1431 This might be jumping the topic, but...Other areas: The proof of Bose-Einstein condensate. Old theory, but refined physics? Isn't this "evolution"?... how is bose einstein condensation explained...

I think it is simply the coalescence between a neutron and a K+ meson. What are your thoughts?