Lepton-pair production in association with a pair and the determination of the boson mass
arXiv:1803.04336 · doi:10.1007/JHEP07(2018)101
Abstract
We perform a study of lepton-pair production in association with bottom quarks at the LHC based on the predictions obtained at next-to-leading order in QCD, both at fixed order and matched with a QCD parton shower. We consider a comprehensive set of observables and estimate the associated theoretical uncertainties by studying the dependence on the perturbative QCD scales (renormalisation, factorisation and shower) and by comparing different parton-shower models (Pythia8 and Herwig++) and matching schemes (MadGraph5_aMC@NLO and POWHEG). Based on these results, we propose a simple procedure to include bottom-quark effects in neutral-current Drell-Yan production, going beyond the standard massless approximation. Focusing on the inclusive lepton-pair transverse-momentum distribution , we quantify the impact of such effects on the tuning of the simulation of charged-current Drell-Yan observables and the -boson mass determination.
arXiv comment47 pages, 29 figures, 1 table
References in corpus (47)
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- The anti-k_t jet clustering algorithm
- An Introduction to PYTHIA 8.2
- A Brief Introduction to PYTHIA 8.1
- FastJet user manual
- A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
- Parton distributions for the LHC Run II
- Event generation with SHERPA 1.1
- Herwig++ Physics and Manual
- Matching NLO QCD computations and parton shower simulations
- Tuning PYTHIA 8.1: the Monash 2013 Tune
- High-precision QCD at hadron colliders: electroweak gauge boson rapidity distributions at NNLO
- Electroweak gauge boson production at hadron colliders through O(alpha_s^2)
- Soft gluon effects on lepton pairs at hadron colliders
- Z-boson production in association with a jet at next-to-next-to-leading order in perturbative QCD
- Dilepton rapidity distribution in the Drell-Yan process at NNLO in QCD
- Universality of non-leading logarithmic contributions in transverse-momentum distributions
- Electroweak Radiative Corrections to Neutral-Current Drell-Yan Processes at Hadron Colliders
- Electroweak radiative corrections to W-boson production at hadron colliders
- Precision electroweak calculation of the production of a high transverse-momentum lepton pair at hadron colliders
- Production of Drell--Yan lepton pairs in hadron collisions: transverse-momentum resummation at next-to-next-to-leading logarithmic accuracy
- The W boson production cross section at the LHC through O(alpha_s^2)
- Universality of the Collins-Soper-Sterman nonperturbative function in gauge boson production
- b-Initiated processes at the LHC: a reappraisal
- Electroweak Radiative Corrections to W Boson Production in Hadronic Collisions
- Higgs production in association with bottom quarks
- Precision electroweak calculation of the charged current Drell-Yan process
- Neutral current Drell-Yan with combined QCD and electroweak corrections in the POWHEG BOX
- Drell-Yan Production at Threshold to Third Order in QCD
- NNLOPS accurate Drell-Yan production
- NLO matching for ttbb production with massive b-quarks
- Transverse-momentum resummation: a perturbative study of Z production at the Tevatron
- NNLO QCD corrections to the transverse momentum distribution of weak gauge bosons
- New NLOPS predictions for -jet production at the LHC
- Precision Studies of Observables in pp->W->l nu and pp->gamma,Z->l+l- processes at the LHC
- W and Z/gamma* boson production in association with a bottom-antibottom pair
- Associated Production of a Z Boson and a Single Heavy-Quark Jet
- Multiphoton Radiation in Leptonic W-Boson Decays
- Implementation of electroweak corrections in the POWHEG BOX: single W production
- Electroweak Radiative Corrections to Resonant Charged Gauge Boson Production
- Rapidity Distributions in Drell-Yan and Higgs Productions at Threshold to Third Order in QCD
- NNLO QCD corrections for Drell-Yan and observables at the LHC
- Inclusive production of a Higgs or Z boson in association with heavy quarks
- Production of a Z boson and two jets with one heavy-quark tag
- Anatomy of double heavy-quark initiated processes
- Resummation ambiguities in the Higgs transverse-momentum spectrum in the Standard Model and beyond
- Associated production of bosons and -jets at the LHC in the combined + collinear QCD factorization approach
Cited by in corpus (18)
- Fiducial distributions in Higgs and Drell-Yan production at NLL+NNLO
- The transverse momentum spectrum of weak gauge bosons at NLL+NNLO
- Les Houches 2021: Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
- Bottom-flavored inclusive emissions in the variable-flavor number scheme: A high-energy analysis
- Multi-jet merging in a variable flavor number scheme
- Parton-shower effects in Higgs production via Vector-Boson Fusion
- Top-Yukawa contributions to bbH production at the LHC
- Estimating the impact of mixed QCD-electroweak corrections on the -mass determination at the LHC
- High-energy QCD dynamics from bottom flavor fragmentation at the Hi-Lumi LHC
- Parton Density Uncertainties and the Determination of Electroweak Parameters at Hadron Colliders
- A fragmentation-based study of heavy quark production
- Determination of the -boson mass at hadron colliders
- Sensitivity to New Physics in final states with multiple gauge and Higgs bosons
- Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
- General mass variable flavor number scheme for boson production in association with a heavy quark at hadron colliders
- Measurement of cross-sections for production of a boson in association with a flavor-inclusive or doubly -tagged large-radius jet in proton-proton collisions at TeV with the ATLAS experiment
- Estimating power corrections for the Drell-Yan Process
- V and heavy flavour production: status and recent theoretical developments