Top- and bottom-mass effects in hadronic Higgs production at small transverse momenta through lo+nll

We present the inclusive transverse momentum distribution for Higgs bosons produced in bottom quark annihilation at the LHC. The results are obtained in the fiveflavor scheme. The soft and collinear terms at small p T are resummed through NNLL accuracy and matched to the NNLO transverse momentum distribution at large p T . We find that the theoretical uncertainty, derived from a variation of the unphysical scales entering the calculation, is significantly reduced with respect to lower orders.

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“…., which is in perfect agreement with Eq. (19). This serves as an important check of our calculation.…”

Section: Resummation Coefficients and Determination Of H H(2) Bmentioning

confidence: 57%

“…The effects of exact top and bottom masses on the resummed transverse momentum distribution were studied at NLO+NLL in Ref. [19,20]. 1 For bbH, the NNLO p T spectrum of the Higgs for p T > 0 in the 5FS was obtained in Ref.…”

Section: Introductionmentioning

confidence: 99%

Higgs production in bottom quark annihilation: Transverse momentum distribution atNNLO+NNLL

2014

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“…In the case of the Higgs p T spectrum the resummation has been performed up to next-to-next-to-leading logarithmic accuracy (NNLL) and matched to the fixed-order NNLO result up to O(α 4 S ) in the HTL [70]. Finite quark-mass effects have been included in the resummed spectrum up to NLL+NLO [72,73]. The recent computation of the O(α 5 S ) corrections at high-p T , together with new available information on the logarithmic structure at the same order [74] would in principle allow to extend the accuracy of this calculation.…”

Section: Jhep03(2017)115mentioning

confidence: 99%

“…[72,73]. 6 The inclusion of the top mass does not lead to complications: since m t ∼ m H the computation of the p T spectrum is still a two scale problem.…”

Section: Jhep03(2017)115mentioning

confidence: 99%

Modeling BSM effects on the Higgs transverse-momentum spectrum in an EFT approach

Grazzini

Ilnicka

Spira

et al. 2017

J. High Energ. Phys.

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Abstract:We consider the transverse-momentum distribution of a Higgs boson produced through gluon fusion in hadron collisions. At small transverse momenta, the large logarithmic terms are resummed up to next-to-leading-logarithmic (NLL) accuracy. The resummed computation is consistently matched to the next-to-leading-order (NLO) result valid at large transverse momenta. The ensuing Standard Model prediction is supplemented by possible new-physics effects parametrised through three dimension-six operators related to the modification of the top and bottom Yukawa couplings, and to the inclusion of a point-like Higgs-gluon coupling, respectively. We present resummed transverse-momentum spectra including the effect of these operators at NLL+NLO accuracy and study their impact on the shape of the distribution. We find that such modifications, while affecting the total rate within the current uncertainties, can lead to significant distortions of the spectrum. The proper parametrization of such effects becomes increasingly important for experimental analyses in Run II of the LHC.

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“…The impact of top quark effects on the leading jet's transverse momentum at NLO has been studied through a 1/m t expansion [20]. Different prescriptions have been proposed to include top and bottom effects in analytic resummations [21][22][23] as well as parton-shower simulations, e.g. in (N)NLO+PS generators [24][25][26].…”

Section: Jhep04(2016)049mentioning

confidence: 99%

Jet-vetoed Higgs cross section in gluon fusion at N3LO+NNLL with small-R resummation

Banfi

Caola

Dreyer

et al. 2016

J. High Energ. Phys.

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We present new results for the jet-veto efficiency and zero-jet cross section in Higgs production through gluon fusion. We incorporate the N 3 LO corrections to the total cross section, the NNLO corrections to the 1-jet rate, NNLL resummation for the jet p t and LL resummation for the jet radius dependence. Our results include known finite-mass corrections and are obtained using the jet-veto efficiency method, updated relative to earlier work to take into account what has been learnt from the new precision calculations that we include. For 13 TeV collisions and using our default choice for the renormalisation and factorisation scales, µ 0 = m H /2, the matched prediction for the jet-veto efficiency increases the pure N 3 LO prediction by about 2% and the two have comparable uncertainties. Relative to NNLO+NNLL results, the new prediction is 2% smaller and the uncertainty reduces from about 10% to a few percent. Results are also presented for the central scale µ 0 = m H .

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Top- and bottom-mass effects in hadronic Higgs production at small transverse momenta through lo+nll

Cited by 53 publications

References 58 publications

Higgs production in bottom quark annihilation: Transverse momentum distribution atNNLO+NNLL

Higgs production in bottom quark annihilation: Transverse momentum distribution atNNLO+NNLL

Modeling BSM effects on the Higgs transverse-momentum spectrum in an EFT approach

Jet-vetoed Higgs cross section in gluon fusion at N3LO+NNLL with small-R resummation

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