Timeline for Energy dependency of the total cross section for different species
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 5, 2022 at 13:58 | comment | added | juacala | Can someone give me a peer-reviewed reference of where the $e^+e^-$ cross section graph comes from? | |
| Jan 4, 2021 at 19:11 | answer | added | Luke | timeline score: 1 | |
| Oct 13, 2018 at 12:00 | history | tweeted | twitter.com/StackPhysics/status/1051080201969590272 | ||
| Jan 29, 2016 at 19:13 | comment | added | rob♦ | There's probably a simple interpretation for the $1/\sqrt E$ cross section in e-e. Thermal (milli-eV) neutrons have the same shape, and the usual explanation is that the cross section is proportional to inverse of the speed, or to the "dwell time" near a nucleus (but of course that particular argument doesn't hold for relativistic electrons). If you can predict the $1/\sqrt E$ cross section for electrons you should find yourself making an assumption that is broken for protons. | |
| Jan 29, 2016 at 7:51 | comment | added | DarioP | @rob Yes, that's obviously energy [GeV], as easily inferred from the masses of the resonances. Regarding the stuff happening at higher energy: one expects resonances at the Higgs and at the Top masses, but there are no hints that the general trend should be altered. | |
| Jan 29, 2016 at 0:01 | comment | added | rob♦ | Note that the electron cross-section, away from resonances, seems to be proportional to $1/\sqrt E$ (if center-of-mass energy $E$ is what's on that unlabeled horizontal axis). Also note that the e-e plot would fit only in the left half of the hadron plot, so maybe stuff starts happening again at higher energy. I don't know, though. | |
| Jan 28, 2016 at 8:40 | history | asked | DarioP | CC BY-SA 3.0 |