NNLO B-fragmentation fits and their application to $t\bar{t}$ production and decay at the LHC

Abstract

In this work we derive three sets of non-perturbative fragmentation functions, with uncertainties, for $B$-hadrons, $J/\psi$'s and muons resulting from semileptonic $B$ decays. All three sets are with next-to-next-to leading order accuracy and include next-to-next-to leading logarithmic soft gluon resummation. The novel feature of these new sets is that they are fully consistent with our formalism for next-to-next-to leading order (NNLO) calculations for final states with identified $B$, $J/\psi$ or a $\mu$. We employ the fragmentation functions derived in this work to make state of the art predictions for such final states in $t\bar{t}$ events at the LHC. A special emphasis is placed on observables sensitive to the top quark mass. The present work opens the door for many LHC applications, like, open $B$ production or $B$ production in association with bosons.

arXiv comment46 pages, 59 figures, matches published version

References in corpus (78)

• LHAPDF6: parton density access in the LHC precision era
• 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
• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Soft-gluon resummation for Higgs boson production at hadron colliders
• Fragmentation Functions for Pions, Kaons, and Protons at Next-to-Leading Order
• QCD Predictions for Charm and Bottom Production at RHIC
• The p_T Spectrum in Heavy-Flavour Photoproduction
• The Resummation of Soft Gluon in Hadronic Collisions
• A novel subtraction scheme for double-real radiation at NNLO
• APFEL: A PDF Evolution Library with QED corrections
• QCD Decoupling at Four Loops
• Four-Loop Decoupling Relations for the Strong Coupling
• Charm electroproduction viewed in the variable-flavour number scheme versus fixed-order perturbation theory
• Parton-to-Pion Fragmentation Reloaded
• Charmed-Meson Fragmentation Functions with Finite-Mass Corrections
• Fragmentation Functions for Light Charged Hadrons with Complete Quark Flavour Separation
• A determination of the fragmentation functions of pions, kaons, and protons with faithful uncertainties
• Four-dimensional formulation of the sector-improved residue subtraction scheme
• Testing the Universality of Fragmentation Functions
• Perturbative QCD Fragmentation Functions as a Model for Heavy-Quark Fragmentation
• Next-to-Leading Order Fragmentation Functions for Pions and Kaons
• Next-to-Next-to-Leading Order Evolution of Non-Singlet Fragmentation Functions
• QCD analysis of first b cross section data at 1.96 TeV
• The Large Quark Mass Expansion of Gamma (Z^0 -> hadrons) and Gamma(tau^- -> nu_tau + hadrons) in the Order alpha_s^3
• Is There a Significant Excess in Bottom Hadroproduction at the Tevatron?
• Next-to-next-to-leading logarithmic threshold resummation for deep-inelastic scattering and the Drell-Yan process
• Soft-Gluon Resummation for the Fragmentation of Light and Heavy Quarks at Large x
• Higher order QCD corrections to the transverse and longitudinal fragmentation functions in electron-positron annihilation
• Inclusive Analysis of the b Quark Fragmentation Function in Z Decays at LEP
• Simultaneous Monte Carlo analysis of parton densities and fragmentation functions
• On Third-Order Timelike Splitting Functions and Top-Mediated Higgs Decay into Hadrons
• QCD Corrections to Semi-Inclusive Hadron Production in Electron-Positron Annihilation at Two Loops
• On the Next-to-Next-to-Leading Order Evolution of Flavour-Singlet Fragmentation Functions
• Perturbative Heavy Quark Fragmentation Function through O(alpha_s^2)
• $O({\alpha }_s^2)$ Contributions to the longitudinal fragmentation function in $e^{+}{e}^{-}$ annihilation
• A Study of Heavy Flavoured Meson Fragmentation Functions in e+ e- annihilation
• Charmed-Hadron Fragmentation Functions from CERN LEP1 Revisited
• Heavy Quark Fragmentation into Heavy Mesons
• First Monte Carlo analysis of fragmentation functions from single-inclusive $e^{+}{e}^{-}$ annihilation
• Predictions for D^*+- Photoproduction at HERA with New Fragmentation Functions from LEP1
• Perturbative Heavy Quark Fragmentation Function through O(α_s^2): Gluon Initiated Contribution
• Top mass determination in leptonic final states with J/psi
• Pion and kaon fragmentation functions at next-to-next-to-leading order
• A simple, yet subtle "invariance" of two-body decay kinematics
• Using hadron-in-jet data in a global analysis of $D^{\ast }$ fragmentation functions
• Fragmentation Functions at Next-to-Next-to-Leading Order Accuracy
• $O({\alpha }_s^2)$ Contributions to the asymmetric fragmentation function in $e^{+}{e}^{-}$ annihilation
• A determination of unpolarised pion fragmentation functions using semi-inclusive deep-inelastic-scattering data: MAPFF1.0
• Heavy-Quark Fragmentation
• ${\Lambda }_c^{\pm }$ production in pp collisions with a new fragmentation function
• Practical Jet Flavour Through NNLO
• Bottom Quark Fragmentation in Top Quark Decay
• Towards a Global QCD Analysis of Fragmentation Functions at Next-To-Next-To-Leading Order Accuracy
• On the quark distribution in an on-shell heavy quark and its all-order relations with the perturbative fragmentation function
• $B$-hadron fragmentation functions at next-to-next-to-leading order from global analysis of $e^{+}{e}^{-}$ annihilation data
• Bottom-flavored hadrons from top-quark decay at next-to-leading order in the general-mass variable-flavor-number scheme
• B-hadron hadro-production in NNLO QCD: application to LHC $t\bar{t}$ events with leptonic decays
• Effective field theory approach to heavy quark fragmentation
• Soft-Gluon Resummation for Bottom Fragmentation in Top Quark Decay
• Strong Coupling Constant from Scaling Violations in Fragmentation Functions
• Non-Perturbative Corrections to Heavy Quark Fragmentation in e^+e^- Annihilation
• A Fragmentation Approach to Jet Flavor
• Pion Fragmentation Functions at High Energy Colliders
• Crossing Heavy-Flavour Thresholds in Fragmentation Functions
• Power Corrections and Renormalons in $e^{+}{e}^{-}$ Fragmentation Functions
• Bottom-quark fragmentation: comparing results from tuned event generators and resummed calculations
• Hadron energy spectrum in polarized top quark decays considering the effects of hadron and bottom quark masses
• Heavy Quark Jet Fragmentation
• Reference results for time-like evolution up to $\mathcal{O}({\alpha }_s^3)$
• Modelling non-perturbative corrections to bottom-quark fragmentation
• Heavy quark jet production near threshold
• A fragmentation-based study of heavy quark production
• Top quark mass determination from the energy peaks of b-jets and B-hadrons at NLO QCD
• Resummation effects in the bottom-quark fragmentation function
• Using Heavy Quark Fragmentation into Heavy Hadrons to Determine QCD Parameters and Test Heavy Quark Symmetry
• Higgs-boson production in top-quark fragmentation

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• Semi-inclusive deep-inelastic scattering at NNLO in QCD
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• High-energy QCD dynamics from bottom flavor fragmentation at the Hi-Lumi LHC
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• Bottomoniumlike states in proton collisions: Fragmentation and resummation
• On heavy-flavour jets with Soft Drop
• Heavy Quark Fragmentation in $e^{+}{e}^{-}$ Collisions to NNLO+NNLL Accuracy in Perturbative QCD
• An improved description of charm fragmentation data
• Dihadron helicity correlation in photon-nucleus collisions
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Open $B$-hadron production at hadron colliders in QCD at next-to-next-to-leading-order and next-to-next-to-leading-logarithmic accuracy
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