text: 409,112,1225337667082215425,75249390,Axel Maas,"We have put out a new paper, among others with @SimonPlaetzer, on the 'valence Higgs' of the proton. That may sounds weird, as usually it is told of only three 'valence quarks' in the proton. So let me explain a little - you can find the paper at <LINK> A particle is called valence, if it contributes to the quantum number of the proton. The quarks make up its electric charge and baryon number. So why would the Higgs be there? Which quantum number does it contribute to? It is quite involved,and has to do with weak interactions. The weak interactions couple to something we call flavor, and which is usually said to make the difference between proton and neutron. The underlying theory is more complicated, and formally says something like flavor is not observable - see the review <LINK> To get a physical version of flavor, you need to add something which acts 'like flavor', and creates the distinction. In the standard model, the only particle which can do this without changing the spin is the Higgs. This has been worked out for leptons in 1980 by Fröhlich et al. However, a proton is a composite particle, and things are a bit more weird. But essentially it needs to have three quarks and a Higgs to get all quantum numbers right and observable in the standard model. We deduced this in <LINK> But this should have observable consequences, if we have enough energy to get the sluggish Higgs to react - at least something like the LHC. This paper is our first attempt to determine how much we would see, and where we would see it. We find that the effect needs to be tiny, but not impossible. It is worthwhile to invest more effort into it, as we did a lot of very crude estimates. But confirming it would be a big step in understanding the field theory underlying the standard model.",https://arxiv.org/abs/2002.01688,"Non-perturbative gauge-invariance under the strong and the weak interactions dictates that the proton contains a non-vanishing valence contribution from the Higgs particle. By introducing an additional parton distribution function (PDF), we investigate the experimental consequences of this prediction. The Herwig 7 event generator and a parametrized CMS detector simulation are used to obtain predictions for a scenario amounting to the LHC Run II data set. We use those to assess the impact of the Higgs PDF on the pp->ttbar process in the single lepton final state. Comparing to nominal simulation we derive expected limits as a function of the shape of the valence Higgs PDF. We also investigate the process pp->ttZ at the parton level to add further constraints. ",Constraining the Higgs valence contribution in the proton,7,"[""We have put out a new paper, among others with @SimonPlaetzer, on the 'valence Higgs' of the proton. That may sounds weird, as usually it is told of only three 'valence quarks' in the proton. So let me explain a little - you can find the paper at <LINK>"", 'A particle is called valence, if it contributes to the quantum number of the proton. The quarks make up its electric charge and baryon number. So why would the Higgs be there? Which quantum number does it contribute to?\n\nIt is quite involved,and has to do with weak interactions.', 'The weak interactions couple to something we call flavor, and which is usually said to make the difference between proton and neutron.\n\nThe underlying theory is more complicated, and formally says something like flavor is not observable - see the review https://t.co/jVo2JEcpFO', ""To get a physical version of flavor, you need to add something which acts 'like flavor', and creates the distinction. In the standard model, the only particle which can do this without changing the spin is the Higgs. This has been worked out for leptons in 1980 by Fröhlich et al."", 'However, a proton is a composite particle, and things are a bit more weird. But essentially it needs to have three quarks and a Higgs to get all quantum numbers right and observable in the standard model. We deduced this in https://t.co/EhNqRI8CIn', 'But this should have observable consequences, if we have enough energy to get the sluggish Higgs to react - at least something like the LHC.\n\nThis paper is our first attempt to determine how much we would see, and where we would see it.', 'We find that the effect needs to be tiny, but not impossible.\n\nIt is worthwhile to invest more effort into it, as we did a lot of very crude estimates. But confirming it would be a big step in understanding the field theory underlying the standard model.']",20,02,1794