NLO Production and Decay of Quarkonium

Abstract

We present a calculation of next-to-leading-order (NLO) QCD corrections to total hadronic production cross sections and to light-hadron-decay rates of heavy quarkonium states. Both colour-singlet and colour-octet contributions are included. We discuss in detail the use of covariant projectors in dimensional regularization, the structure of soft-gluon emission and the overall finiteness of radiative corrections. We compare our approach with the NLO version of the threshold-expansion technique recently introduced by Braaten and Chen. Most of the results presented here are new. Others represent the first independent reevaluation of calculations already known in the literature. In this case a comparison with previous findings is reported.

arXiv comment65 pages, Latex, epsfig, 8 figures. Typos corrected and improvements made to the text. Version to appear on Nucl Phys. B

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• Multi-Parton Amplitudes in Gauge Theories
• Improved Nonrelativistic QCD for Heavy Quark Physics
• Color-octet quarkonia production
• Color-Octet Fragmentation and the psi' Surplus at the Tevatron
• Color-octet quarkonia production II
• Gluon Fragmentation into Heavy Quarkonium
• The HQET/NRQCD Lagrangian to order alpha/m^3
• QCD Corrections to Inelastic $J/\psi$ Photoproduction
• Fragmentation production of J/psi and psi' at the Tevatron
• Color-Octet Contributions to $J/\psi$ Photoproduction
• Hadro-production of Quarkonia in Fixed Target Experiments
• P-Wave Charmonium Production in B-Meson Decays
• J/psi Production via Fragmentation at the Tevatron
• Color-octet mechanism in $\gamma +p\to J/\psi +X$
• Gluon Fragmentation into P-wave Heavy Quarkonium
• Effective Field Theory and Matching in Non-Relativistic Gauge Theories
• Elastic and Inelastic Photoproduction of \jpsi Mesons at HERA
• Signature for Color-Octet Production of $J/\psi$ in $e^{+}{e}^{-}$ Annihilation
• Helicity Decomposition for Inclusive $J/\psi$ Production
• Kinematic Enhancement of Non-Perturbative Corrections to Quarkonium Production
• Inelastic J/psi Photoproduction
• ${\psi }^{\prime }$ Polarization as a test of colour octet quarkonium production
• Fragmentation contribution to quarkonium production in hadron collision
• Color-Octet Quarkonium Production at the $Z$ Pole
• Prompt Upsilon and Psi Production at LEP
• Dimensional Regularization in Quarkonium Calculations
• Inclusive $S-$wave charmonium productions in $B$ decays
• QCD Corrections to Toponium Production at Hadron Colliders
• Measurement of Inelastic J/Psi Photoproduction at HERA
• Lepton Flavour Violations in SO(10) with large $\tan \beta$
• Photoproduction of J/$\psi$ in the forward region
• Colour-octet Contributions to J/psi Hadroproduction at Fixed Target Energies
• Color-Octet $J/\psi$ Production at Low $p_{\perp }$
• Color-Octet ${\psi }^{\prime }$ Production at Low $p_{\perp }$
• NRQCD matrix elements in polarization of J-Psi produced from b-decay
• Gluon Fragmentation into ${}^3{P}_J$ Quarkonium
• Colour-octet Contributions to $x_F$ Distributions in $J/\psi$ Hadro-production at Fixed Target Energies
• Hadronic $\psi$ production calculated in the NRQCD factorization formalism
• J/psi production via fragmentation at HERA
• QCD Radiative Correction to the Hadronic Annihilation Rate of $1^{+-}$ Heavy Quarkonium
• Charmonium Production via Fragmentation at DESY HERA
• J/psi Production at the LHC
• Inclusive Photoproduction of Polarized ${}^3{P}_1$ Quarkonium

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• Observation of J/psi --> 3 gamma
• Breakdown of QCD Factorization for P-Wave Quarkonium Production at Low Transverse Momentum
• J/psi plus dijet associated production in two-photon collisions
• Searching for new spin-0 resonances at LHCb
• Colour-Octet Effects in Radiative ${\rm Y}$ Decays
• Fragmentation functions of polarized heavy quarkonium
• Two-Photon, Two-gluon and Radiative Decays of Heavy Flavoured Mesons
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• QCD corrections to $J/\psi$ plus $Z^0$-boson production at the LHC
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• Heavy quarkonium photoproduction in ultrarelativistic heavy ion collisions
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• Overview of Non-Relativistic QCD
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• Relativistic corrections to the axial vector and vector currents in the bar{b}c meson system at order alpha_s
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• Exclusive charmonium production from $e^{+}{e}^{-}$ annihilation round the $Z^0$ peak
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• The production of the doubly charmed baryon in deeply inelastic $ep$ scattering at the Large Hadron Electron Collider
• J/psi Inclusive Production in nu N Neutral-Current Deep-Inelastic Scattering
• Excited heavy quarkonium production in Higgs boson decays
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• Soft-Gluon Resummation in Heavy Quarkonium Physics
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• J/Ψproduction in two-photon collisions at next-to-leading order
• Further study on the production of P-wave doubly heavy baryons from Z-boson decays
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• Experimental Review of the Quarkonium Physics at the LHC
• Non-relativistic high-energy physics: top production and dark matter annihilation
• pQCD Calculations of Heavy Quark and J/psi Production
• Order-$v^4$ Relativistic Corrections to ${\rm Y}$ Inclusive Decay into a Charm pair
• Impact of $Z\to {\eta }_{c,b}+g+g$ on the inclusive ${\eta }_{c,b}$ meson yield in $Z$-boson decay
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