133 reputation
4
bio website insectnation.org
location Cern, Switzerland
age 35
visits member for 2 years, 3 months
seen Nov 17 at 10:08

Particle physicist with a computational bent. Fun is maths, programming, graphic design, playing/listening music and climbing/mountaineering.


Aug
23
comment Very basic question on spin
For fundamental particles it coincides (as also commented on your linked answer): systems will ill-defined spin are of course more complex. Fundamental particle are the relevant case for particle physics (cf. the original question) where the only composites are hadrons, and those are precisely treated such that every energy level is considered to be a distinct particle with a well-defined spin (and indeed all J^{PC} characteristics).
Dec
9
comment Why Cronin Effect Happens?
As mentioned, the leading twist term is a single partonic scatter, which will be of form 2 partons -> 2 partons. So that's why there is the comment about leading order preserving multiplicity: you need to go to higher orders to get a real parton emission which would increase the multiplicity. But the LO diagrams can still change kinematics. It's remarkably hard to find an introductory paper on higher-twist corrections in pQCD (in the OPE formalism), but this (e-)book gives some introduction that's easier than the state of the art papers: lpthe.jussieu.fr/~yuri/BPQCD/BPQCD.pdf
Aug
5
answered Why is there a size limitation on animals?
Oct
19
awarded  Editor
Oct
19
revised Why is $\int (dp/2\pi) |p \rangle\langle p| = 1 $?
Fixing LaTeX typos (and a few other punctuations things to pass the modified character threshold!)
Oct
19
suggested suggested edit on Why is $\int (dp/2\pi) |p \rangle\langle p| = 1 $?
Aug
17
awarded  Supporter
Aug
3
awarded  Teacher
Aug
3
answered Very basic question on spin
Aug
3
awarded  Autobiographer