====== Setup ====== * LHC @ 13 TeV * PDF set: PDF4LHC21_40 * [[https://github.com/jetflav|flavoured jet fastjet repos]] (all 4 algorithms will be provided here) * Rivet analysis: [[https://github.com/DReichelt/LH23FlavAlgs]] ===== Input Parameters ===== * GF = 1.16638e-5 * mW = 80.351971594491 * GW = 2.0842988936726 * mZ = 91.153480619183 * GZ = 2.4942663787728 * MH = ? (for WH) * mb = ? (for WH) ===== V + flavoured jet study ===== NNLO (massless) and NLO+PS studies for Z+b and Z+c production (will adopt same selections cuts and binning for both processes). * off-shell Z -> mu+ mu- * pT(Z) > 20 GeV (for generation cuts of event sample, to be jet-algo agnostic) * central scale choice E_T(Z) = sqrt(m(mu+mu-)^2 + pT(mu+mu-)^2) * mu+ & mu- with pT(mu) > 20 GeV, |y(mu)| < 2.4 and 71 GeV < m(mu+mu-) < 111 GeV ==== Fiducial cuts, observables & binning ==== We will adapt the same analysis (selection cuts + histogram binning) as in the 8 TeV CMS measurement [[https://www.hepdata.net/record/ins1499471|HEPData]], [[https://rivet.hepforge.org/analyses/CMS_2017_I1499471|Rivet]]. Note the additional "generation cut" ptz > 20 GeV and that we'll perform our study at 13 TeV. ===== WH (H->bb) study ===== Fixed-order NNLO predictions with and without bottom-quark masses. Idea: study how large the log(mb) are in different kinematic regimes and how differences in flavour tagging impact observables. ===== Parameters of the algorithms ===== * IFN with alpha = 2 (-> omega = 1) * GHS alpha = 1.0; beta = 1.0; zcut = 0.1; Rcut = 0.1; omega = 2.0; * SDFlav with zcut = 0.1; beta = 1; * CMP_Omega with a = 0.1