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In papers they often say things about the analytic structure of S matrices - things like resonances are poles on the unphysical sheet, particle channels cause a square root branch...
Asked on 05/16/2021
1 answerWhat is the reason that the magnetic hyperfine fields which are created at the nuclei by the surrounding electrons are often much stronger than macroscopic magnetic fields?...
Asked on 05/16/2021
0 answerSum of momenta of two protons in LHC moving in opposite directions is assumed to be zero but it can't be exactly zero so how close does it get to...
Asked on 05/16/2021
1 answerI have just begun studying P-V diagrams for phase-changes and I noticed something interesting which I cannot adequately explain. Suppose you have a saturated vapour-liquid mixture in a strong rigid...
Asked on 05/16/2021
2 answerWe know that, for one molecule of ideal gas, $U = text{Kinetic energy} = frac{f}{2}RT$ where $f$ is the number of degrees of freedom, $R$ is the...
Asked on 05/16/2021 by Harshavardhan Hajeri
1 answerI am reading A Brief History of Time by Stephen Hawking, and in it he mentions that without compensating for relativity, GPS devices would be out by miles. Why is...
Asked on 05/15/2021
5 answerWe know that the Schrödinger equation is $hat H|Psirangle=E|Psirangle$. If we write the hamiltonian $hat H$ as $frac{hat{p}^2}{2m}+V(x)$ and then use $hat p=-ihbarpartial _x $ we...
Asked on 05/15/2021
1 answerDoes anyone know where I can find the analytical expressions of the scattering amplitude in second Born Approximation for the Yukawa potential? I need it for the both cases of...
Asked on 05/15/2021 by Caute
1 answerIf we know that a photon scatters an electron should it be tried as an indirect detector to say a deflector at one slit which can help to deduce the...
Asked on 05/15/2021
1 answerI have watched on the Youtube channel of Eugene Khutoryansky an explanation of the Bernoulli equation on the molecular level. It states that" An atom is more likely to enter...
Asked on 05/15/2021
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