Precise measurement of the b-quark fragmentation function in Z0 boson decays

Abstract

We have developed a new technique for inclusive reconstruction of the energy of B hadrons. The excellent efficiency and resolution of this technique allow us to make the most precise determination of the b-quark fragmentation function, using e+e- -> Z0 decays recorded in the SLD experiment at SLAC. We compared our measurement with the predictions of a number of fragmentation models. We excluded several of these models and measured the average scaled energy of weakly-decaying B hadrons to be <x_B>=0.714+-0.005(stat)+-0.007(syst) +-0.002(model dependence).

14 pages including 2 figures; submitted to Physical Review Letters

Cited by in corpus (49)

• Study of the fragmentation of b quarks into B mesons at the Z peak
• Finite-Mass Effects on Inclusive B-Meson Hadroproduction
• Higgs boson potential at colliders: status and perspectives
• Measurement of the b-quark fragmentation function in Z0 decays
• Direct observation of the dead-cone effect in QCD
• Measurement of the $B^{+}$ Total Cross Section and $B^{+}$ Differential Cross Section $d\sigma /d{p}_T$ in $p\bar{p}$ Collisions at $\sqrt{s}=1.8$ TeV
• Charm Meson Spectra in e^+e^- Annihilation at 10.5 GeV c.m.e
• Measurement of the top quark mass in the lepton+jets final state with the matrix element method
• Bottom Quark Fragmentation in Top Quark Decay
• Measurement of the top quark mass in the lepton+jets channel using the Ideogram Method
• Bottom-flavored hadrons from top-quark decay at next-to-leading order in the general-mass variable-flavor-number scheme
• A Measurement of the b-quark Mass from Hadronic Z Decays
• Soft-Gluon Resummation for Bottom Fragmentation in Top Quark Decay
• Next-to-leading order QCD effects and the top quark mass measurements at the LHC
• (medium-modified) Fragmentation Functions
• Bottom-quark fragmentation: comparing results from tuned event generators and resummed calculations
• b-Hadron production in the general-mass variable-flavour-number scheme and LHC data
• Angular analysis of polarized top quark decay into B-mesons in two different helicity systems
• Measurement of the top quark mass using charged particles in pp collisions at sqrt(s) = 8 TeV
• $\mathcal{O}({\alpha }_s)$ corrections to the B-hadron energy distribution of the top decay in the Minimal Supersymmetric Standard Model considering GM-VFN scheme
• Energy spectrum of bottom- and charmed-flavored mesons from polarized top quark decay $t(\uparrow )\to W^{+}+B/D+X$ at $\mathcal{O}({\alpha }_s)$
• Inclusive lepton production from heavy-hadron decay in pp collisions at the LHC
• Modelling non-perturbative corrections to bottom-quark fragmentation
• B-mesons from top-quark decay in presence of the charged-Higgs boson in the Zero-Mass Variable-Flavor-Number Scheme
• A Phenomenological Study of Bottom Quark Fragmentation in Top Quark Decay
• Measurement of the B0 Lifetime and Oscillation Frequency using B0->D*+l-v decays
• Improved Direct Measurement of $A_b$ and $A_c$ at the $Z^0$ Pole Using a Lepton Tag
• Fragmentation in H->b bbar Processes
• Precision measurements of the top quark mass from the Tevatron in the pre-LHC era
• Inclusive charmed-meson production from bottom hadron decays at the LHC
• Jet Activity in t-tbar Events and Top Mass Reconstruction at Hadron Colliders
• Inclusive J/psi and psi(2S) production from b-hadron decay in p anti-p and pp collisions
• ${\Lambda }_b^0$-baryon production in pp collisions in the general-mass variable-flavour-number scheme and comparison with CMS and LHCb data
• Improved Measurement of the Probability for Gluon Splitting into b bbar in Z0 Decays
• Climbing to the Top of the ATLAS 13 TeV data
• Angular analysis of bottom-flavored hadron production in semileptonic decays of polarized top quarks
• Open Beauty Production
• Next-to-leading order corrections to the spin-dependent energy spectrum of hadrons from polarized top quark decay in the general two Higgs doublet model
• The relative yields of heavy hadrons as function of transverse momentum at LHC experiments
• QCD analysis of light charged Higgs production through polarized top quark decay in two various frames
• Hadronization systematics and top mass reconstruction
• First symmetry tests in polarized Z0 decays to b bbar g
• Heavy Flavor Jet Substructure at Lepton Colliders
• Charged Higgs production from polarized top-quark decay in the 2HDM considering the general-mass variable-flavor-number scheme
• Top Mass Measurement and Bottom Fragmentation at the LHC
• First measurement of the double-inclusive B/Bbar hadron energy distribution in e+e- annihilations, and of angle-dependent moments of the B and Bbar energies
• Jet substructure of light and heavy flavor jets at RHIC
• Hadron production through Higgs decay at next-to-leading order in the general-mass variable-flavor-number scheme
• Investigation of Quark-Antiquark Interaction Properties using Leading Particle Measurements in e+e- Annihilation