Open $B$-hadron production at hadron colliders in QCD at next-to-next-to-leading-order and next-to-next-to-leading-logarithmic accuracy

Abstract

We report on a calculation of open heavy-flavor production at hadron colliders which extends to next-to-next-to-leading order (NNLO) accuracy the classic NLO-accurate formalism developed almost 30 years ago under the acronym FONLL. The approach retains the exact heavy-flavor mass dependence at low transverse momentum, $p_T$, and resums collinear logarithms through next-to-next-to-leading log (NNLL) at high $p_T$. Provided are predictions for $B$-hadrons as well as $B$-decay products like $J/\Psi$ and muons. The main features of the NNLO+NNLL results are reduced scale dependence and moderate NNLO correction, consistent with perturbative convergence in a wide range of kinematic scales from few GeV up to asymptotically large values of $p_T$. The new calculation significantly improves the agreement with data for $B$-hadrons and muons. We uncover an intriguing discrepancy in $J/\Psi$ final states which may point to a lower value of the $B\to J/\Psi$ decay rate.

arXiv commentPublished version, 6 pages, 5 figures

References in corpus (37)

• Parton distributions from high-precision collider data
• The p_T Spectrum in Heavy-Flavour Hadroproduction
• Theoretical predictions for charm and bottom production at the LHC
• OpenLoops 2
• QCD Predictions for Charm and Bottom Production at RHIC
• Leptoproduction of Heavy Quarks II -- A Unified QCD Formulation of Charged and Neutral Current Processes from Fixed-target to Collider Energies
• A novel subtraction scheme for double-real radiation at NNLO
• APFEL: A PDF Evolution Library with QED corrections
• Hard-scattering factorization with heavy quarks: A general treatment
• High-precision differential predictions for top-quark pairs at the LHC
• Double-real radiation in hadronic top quark pair production as a proof of a certain concept
• Two-Loop Helicity Amplitudes for Gluon-Gluon Scattering in QCD and Supersymmetric Yang-Mills Theory
• Four-dimensional formulation of the sector-improved residue subtraction scheme
• Inclusive D^{*+-} Production in p p-bar Collisions with Massive Charm Quarks
• QCD analysis of first b cross section data at 1.96 TeV
• Is There a Significant Excess in Bottom Hadroproduction at the Tevatron?
• Collinear Subtractions in Hadroproduction of Heavy Quarks
• The b-bbar Production Cross Section and Angular Correlations in p-pbar Collisions at sqrt(s) = 1.8 TeV
• Two-Loop Helicity Amplitudes for Quark-Gluon Scattering in QCD and Gluino-Gluon Scattering in Supersymmetric Yang-Mills Theory
• Two-Loop Helicity Amplitudes for Quark-Quark Scattering in QCD and Gluino-Gluino Scattering in Supersymmetric Yang-Mills Theory
• Perturbative Heavy Quark Fragmentation Function through O(alpha_s^2)
• Revisiting the D-meson hadroproduction in general-mass variable flavour number scheme
• Measurement of the differential cross-sections of prompt and non-prompt production of $J/\psi$ and $\psi (2\mathrm{S})$ in $pp$ collisions at $\sqrt{s}=7$ and $8$ TeV with the ATLAS detector
• Single-jet inclusive rates with exact color at $\mathcal{O}({\alpha }_s^4)$
• General-mass treatment for deep inelastic scattering at two-loop accuracy
• Two-loop QCD helicity amplitudes for massless quark-massless gauge boson scattering
• Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD
• Two-loop QCD helicity amplitudes for massless quark-quark scattering
• Perturbative Heavy Quark Fragmentation Function through O(α_s^2): Gluon Initiated Contribution
• Measurement of the differential cross-section of B+ meson production in pp collisions at sqrt(s) = 7 TeV at ATLAS
• NNLO hard functions in massless QCD
• B-hadron hadro-production in NNLO QCD: application to LHC $t\bar{t}$ events with leptonic decays
• Measurement of correlated b-bbar production in p-pbar collisions at sqrt(s)=1960GeV
• NNLO B-fragmentation fits and their application to $t\bar{t}$ production and decay at the LHC
• Polarized double-virtual amplitudes for heavy-quark pair production
• A Hybrid Scheme for Heavy Flavors: Merging the FFNS and VFNS
• B-hadron production at the LHC from bottom-quark pair production at NNLO+PS

Cited by in corpus (3)

• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Les Houches study on inclusive jet production at NNLO+NNLL
• A novel phenomenological approach to total charm cross-section measurements at the LHC