Resumming the color-octet contribution to e+ e- -> J/psi + X

Abstract

Recent observations of the spectrum of J/psi produced in e+ e- collisions at the Upsilon(4S) resonance are in conflict with fixed-order calculations using the Non-Relativistic QCD (NRQCD) effective field theory. One problem is that leading order color-octet mechanisms predict an enhancement of the cross section for J/psi with maximal energy that is not observed in the data. However, in this region of phase space large perturbative corrections (Sudakov logarithms) as well as enhanced nonperturbative effects are important. In this paper we use the newly developed Soft-Collinear Effective Theory (SCET) to systematically include these effects. We find that these corrections significantly broaden the color-octet contribution to the J/psi spectrum. Our calculation employs a one-stage renormalization group evolution rather than the two-stage evolution used in previous SCET calculations. We give a simple argument for why the two methods yield identical results to lowest order in the SCET power counting.

27 pages, 7 figures

References in corpus (9)

• Exclusive Double-Charmonium Production from e^+ e^- Annihilation into a Virtual Photon
• Problems of Double Charm Production in $e^{+}{e}^{-}$ Annihilation at $\sqrt{s}=10.6$ GeV
• A Complete Basis for Power Suppressed Collinear-Ultrasoft Operators
• e^+ e^- Annihilation into J/psi + J/psi
• Comment on Quark Masses in SCET
• Exclusive Double-Charmonium Production from e^+ e^- Annihilation into Two Virtual Photons
• Hunting for glueballs in electron-positron annihilation
• The Photon Spectrum in Upsilon Decays
• The Resummed Photon Spectrum in Radiative Upsilon Decays

Cited by in corpus (65)

• Heavy quarkonium: progress, puzzles, and opportunities
• The Zero-Bin and Mode Factorization in Quantum Field Theory
• Jet Shapes and Jet Algorithms in SCET
• Factorization at the LHC: From PDFs to Initial State Jets
• 50 Years of Quantum Chromodynamics
• Deep inelastic scattering as x -> 1 using soft-collinear effective theory
• The Quark Beam Function at NNLL
• New Observables in Inclusive Production of Quarkonia
• The gluon jet function at two-loop order
• Factorization and Resummation for Dijet Invariant Mass Spectra
• Jet Mass Spectra in Higgs + One Jet at NNLL
• Simplicity from Recoil: The Three-Loop Soft Function and Factorization for the Energy-Energy Correlation
• QCD radiative correction to color-octet $J/\psi$ inclusive production at B Factories
• Parton Fragmentation within an Identified Jet at NNLL
• Hadron Fragmentation Inside Jets in Hadronic Collisions
• QCD corrections to ${\mathbf{e}}^{+}{\mathbf{e}}^{-}\to \mathbf{J}/\mathbf{\psi gg}$ at B Factories
• Fragmentation in Jets at NNLO
• Resummation of Large Endpoint Corrections to Color-Octet J/psi Photoproduction
• Comparison of the color-evaporation model and the NRQCD factorization approach in charmonium production
• Reparameterization Invariant Collinear Operators
• Search for excited charmonium states in $e^{+}{e}^{-}$ Annihilation at $\sqrt{s}=10.6$ GeV
• The groomed and ungroomed jet mass distribution for inclusive jet production at the LHC
• Next-to-Leading-Order QCD Corrections to e+ e- --> J/psi c c_bar at the B Factories
• Relativistic correction to $e^{+}{e}^{-}\to J/\psi +gg$ at $B$ factories and constraint on color-octet matrix elements
• Factorization and Resummation for Generic Hierarchies between Jets
• N-jettiness beam functions at N3LO
• An effective field theory approach to quarkonium at small transverse momentum
• Factorization for Jet Radius Logarithms in Jet Mass Spectra at the LHC
• Measurement of the Direct Photon Momentum Spectrum in Upsilon(1S), Upsilon(2S), and Upsilon(3S) Decays
• Heavy Quark Fragmenting Jet Functions
• Color-singlet relativistic correction to inclusive $J/\psi$ production associated with light hadrons at $B$ factories
• Deep inelastic scattering near the endpoint in soft-collinear effective theory
• Quark mass effects in the soft-collinear effective theory and B -> X_s + photon in the endpoint region
• New Measurements of Upsilon(1S) Decays to Charmonium Final States
• New factorization theory for heavy quarkonium production and decay
• Jets in Effective Theory: Summing Phase Space Logs
• Semi-inclusive radiative decays of Upsilon 1S
• N-jettiness Subtractions for NNLO QCD Calculations
• Leading power SCET analysis of $e^{+}{e}^{-}\to J/\psi gg$
• Inclusive $J/\psi$ Productions at $e^{+}{e}^{-}$ Colliders
• Soft Theorems from Effective Field Theory
• Inclusive $h_c$ production at $B$ factories
• Prospects for quarkonium studies at the high-luminosity LHC
• The color-singlet contribution to e^+ e^- ->J/psi + X at the endpoint
• Overview of Non-Relativistic QCD
• Soft Functions for Generic Jet Algorithms and Observables at Hadron Colliders
• Investigation of the bottomonium ground state η_b via its inclusive charm decays
• Inclusive J/ψProduction In ΥDecay Via Color-singlet Mechanism
• Gauge-boson production with multiple jets near threshold
• Theory for quarkonium: from NRQCD factorization to soft gluon factorization
• Inclusive Production of $h_c(h_b)$ States via $e^{+}{e}^{-}$ Annihilation
• Inclusive $h_c$ production and energy spectrum from $e^{+}{e}^{-}$ annihilation at Super $B$ factory
• Fragmentation function of $g\to Q\bar{Q}{(}^3{S}_1^{[8]})$ in soft gluon factorization and threshold resummation
• Double-Real-Virtual and Double-Virtual-Real Corrections to the Three-Loop Thrust Soft Function
• Theoretical Introduction to B Decays and the Soft-Collinear Effective Theory
• Color-octet contributions for $J/\psi$ inclusive production at B factories in soft gluon factorization
• Perturbative QCD for $J/\psi$ Inclusive Production Via Initial State Radiation at $e^{+}{e}^{-}$ collider
• Power expansion for heavy quarkonium production at next-to-leading order in ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ annihilation
• Scalar charmonium and glueball mixing in $e^{+}{e}^{-}\to J/\psi X$
• Resummation and renormalization of kinematical effects in inclusive $P$-wave quarkonium production
• Color-Octet $\jpsi$ Production in ${\rm Y}$ Decay near the Kinematic Limit
• Double-logarithmic behavior of inelastic fermion form factors in QED and QCD
• The QED contribution to $J/\psi$ plus light hadrons production at B-factories
• QED Contribution to the Color-Singlet $\jpsi$ Production in ${\rm Y}$ Decay Near the Endpoint
• Factorization at the LHC: From PDFs to Initial State Jets (Ph.D. thesis)