- Higgs boson: Ratio≈2.3; Luminosity≈10 fb-1.
Higgs physics will not be terribly exciting this year, with only a modest improvement of the couplings measurements expected.
- tth: Ratio≈4; Luminosity≈6 fb-1.
Nevertheless, for certain processes involving the Higgs boson the improvement may be a bit faster. In particular, the theoretically very important process of Higgs production in association with top quarks (tth) was on the verge of being detected in Run-1. If we're lucky, this year's data may tip the scale and provide an evidence for a non-zero top Yukawa couplings.
- 300 GeV Higgs partner: Ratio≈2.7 Luminosity≈9 fb-1.
Not much hope for new scalars in the Higgs family this year.
- 800 GeV stops: Ratio≈10; Luminosity≈2 fb-1.
800 GeV is close to the current lower limit on the mass of a scalar top partner decaying to a top quark and a massless neutralino. In this case, one should remember that backgrounds also increase at 13 TeV, so the progress will be a bit slower than what the above number suggests. Nevertheless, this year we will certainly explore new parameter space and make the naturalness problem even more severe. Similar conclusions hold for a fermionic top partner.
- 3 TeV Z' boson: Ratio≈18; Luminosity≈1.2 fb-1.
Getting interesting! Limits on Z' bosons decaying to leptons will be improved very soon; moreover, in this case background is not an issue.
- 1.4 TeV gluino: Ratio≈30; Luminosity≈0.7 fb-1.
If all goes well, better limits on gluinos can be delivered by the end of the summer!
In summary, the progress will be very fast for new heavy particles. In particular, for gluon-initiated production of TeV-scale particles already the first inverse femtobarn may bring us into a new territory. For lighter particles the progress will be slower, especially when backgrounds are difficult. On the other hand, precision physics, such as the Higgs couplings measurements, is unlikely to be in the spotlight this year.