Timeline for How can the proton include top quarks, if a top quark is heavier than the proton?
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| Apr 7, 2020 at 10:30 | comment | added | anna v | Yes, an effective field theory explanation. . Lattice QCD attempts to deal with this problem calculationally for example arxiv.org/abs/0903.3598 , including strange quarks. that would be the way to go . | |
| Apr 7, 2020 at 9:00 | comment | added | Thomas Wening | At first hand, I would agree to this explanation. However, doesn't this argument assume that the internal dynamics of the proton are perturbative? Because on the one hand, the collinear factorisation theorem tells us that the nonperturbative dynamics is given by the PDF, which is then convoluted with the perturbative hard scattering part. And on the other hand, propagators are a tool of perturbative QFT. So I would say you cannot really use them to argue that heavy flavour PDFs are suppressed. But maybe I am wrong. | |
| Aug 24, 2016 at 3:29 | history | answered | anna v | CC BY-SA 3.0 |