H + 1 jet production revisited

Abstract

We revisit the next-to-next-to-leading order (NNLO) calculation of the Higgs boson+1 jet production process, calculated in the m t → ∞ effective field theory. We perform a detailed comparison of the result calculated using the jettiness slicing method, with published results obtained using subtraction methods. The results of the jettiness calculation agree with the two previous subtraction calculations at benchmark points. The performance of the jettiness slicing approach is greatly improved by adopting a definition of 1-jettiness that accounts for the boost of the Born system. Nevertheless, the results demonstrate that power corrections in the jettiness slicing method remain significant. At large transverse momentum the effect of power corrections is much reduced, as expected.

Precision phenomenology with MCFM

“…Perturbative corrections to Higgs+jet production have been computed in an EFT with an integrated-out top-quark up to NNLO [84][85][86][87][88][89][90], and also in the full theory with a finite top-quark mass up to NLO [91]. Scale uncertainties at NNLO are about 10% inclusively and differentially.…”

Higgs Transverse Momentum with a Jet Veto: A Double-Differential Resummation

“…Fixed-order perturbative predictions of the p H t spectrum in gluon fusion are currently available at next-to-next-toleading order (NNLO) in the strong coupling α s [15][16][17][18][19] in the infinite top-mass limit, and heavy-quark mass effects are known up to next-to-leading order (NLO) [20][21][22][23][24]. Fixed-order perturbation theory is, however, insufficient to accurately describe the observable considered here.…”

May the four be with you: novel IR-subtraction methods to tackle NNLO calculations

“…Power corrections at NLO have been extensively studied in Refs. [164][165][166][167][168][169][170][171][172][173] both for N -jettiness and transverse momentum distributions, in the context of the N -jettiness subtraction method, and in Refs. [174][175][176][177][178][179] within SCETbased subtraction methods.…”