Transverse momentum dependent feed-down fractions for bottomonium production

Abstract

We extract transverse momentum dependent feed-down fractions for bottomonium production using a data-driven approach. We use data published by the ATLAS, CMS, and LHCb Collaborations for sqrt(s) = 7 TeV proton-proton collisions. Based on this collected data, we produce fits to the differential cross sections for the production of both S- and P-wave bottomonium states. Combining these fits with branching ratios for excited state decays from the Particle Data Group, we compute the feed-down fractions for both the Upsilon(1S) and Upsilon(2S) as a function of transverse momentum. Our results indicate a strong dependence on transverse momentum, which is consistent with prior extractions of the feed-down fractions. When evaluated at the average momentum of the states, we find that approximately 75% of Upsilon(1S) and Upsilon(2S) states are produced directly. Our results for the transverse momentum dependent feed-down fractions are provided in tabulated form so that they can be used by other research groups.

arXiv comment10 pages, 6 figures, 5 tables, and associated data files; v2 - published version

References in corpus (51)

• Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
• Real-time static potential in hot QCD
• Static quark-antiquark pairs at finite temperature
• Real and imaginary-time $Q\bar{Q}$ correlators in a thermal medium
• Charmonium and bottomonium production in heavy-ion collisions
• Thermal Bottomonium Suppression at RHIC and LHC
• Quarkonium suppression in heavy-ion collisions: an open quantum system approach
• Heavy Quarkonium in Extreme Conditions
• Heavy quarkonium suppression in a fireball
• Heavy Quarkonium in a weakly-coupled quark-gluon plasma below the melting temperature
• Measurement of nuclear modification factors of ${\rm Y}$(1S), ${\rm Y}$(2S), and ${\rm Y}$(3S) mesons in PbPb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 5.02 TeV
• Heavy quark master equations in the Lindblad form at high temperatures
• Quarkonia in the Quark Gluon Plasma
• Stochastic potential and quantum decoherence of heavy quarkonium in the quark-gluon plasma
• Thermal Upsilon(1s) and chi_b1 suppression in sqrt(s_NN)=2.76 TeV Pb-Pb collisions at the LHC
• Non-relativistic bound states at finite temperature (I): the hydrogen atom
• Quantum and Classical Dynamics of Heavy Quarks in a Quark-Gluon Plasma
• Quarkonium In-Medium Transport Equation Derived from First Principles
• Suppression of Upsilon Production in d+Au and Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Heavy quark bound states in a quark-gluon plasma: dissociation and recombination
• Measurement of Upsilon production in 7 TeV pp collisions at ATLAS
• The Schrödinger-Langevin equation with and without thermal fluctuations
• Bottomonia suppression in 2.76 TeV Pb-Pb collisions
• Bottomonium Production at RHIC and LHC
• Bottomonium suppression using a lattice QCD vetted potential
• Coupled Boltzmann Transport Equations of Heavy Quarks and Quarkonia in Quark-Gluon Plasma
• Predictions for bottomonia suppression in 5.023 TeV Pb-Pb collisions
• Measurement of the Y(1S), Y(2S), and Y(3S) cross sections in pp collisions at sqrt(s) = 7 TeV
• Transport coefficients from in medium quarkonium dynamics
• Open Quantum Systems for Quarkonia
• Measurement of ${\rm Y}$(1S+2S+3S) production in $p$$+$$p$ and Au$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Suppression of excited ${\rm Y}$ states relative to the ground state in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Measurement of ${\rm Y}(1\mathrm{S})$ elliptic flow at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Quarkonium Semiclassical Transport in Quark-Gluon Plasma: Factorization and Quantum Correction
• Measurements of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) differential cross sections in pp collisions at sqrt(s) = 7 TeV
• Extraction of the Heavy-Quark Potential from Bottomonium Observables in Heavy-Ion Collisions
• Measurement of the azimuthal anisotropy of ${\rm Y}$(1S) and ${\rm Y}$(2S) mesons in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Regeneration of bottomonia in an open quantum systems approach
• Bottomonium suppression and elliptic flow from real-time quantum evolution
• ${\rm Y}$ production and nuclear modification at forward rapidity in Pb-Pb collisions at $\sqrt{{\text{s}}_{\text{NN}}}=5.02$ TeV
• Upsilon production in U+U collisions at 193 GeV with the STAR experiment
• Measurement of the production cross section ratio sigma(chi[b2](1P)) / sigma(chi[b1](1P)) in pp collisions at sqrt(s) = 8 TeV
• Inclusive production of $J/\psi$, $\psi (2S)$, and ${\rm Y}$ states in pNRQCD
• Bottomonium suppression and elliptic flow using Heavy Quarkonium Quantum Dynamics
• Phenomenological study of quarkonium suppression and the impact of the energy gap between singlets and octets
• QTRAJ 1.0: A Lindblad equation solver for heavy-quarkonium dynamics
• Production of ${\rm Y}(\text{nS})$ mesons in Pb+Pb and $pp$ collisions at 5.02 TeV
• The impact of fluctuating initial conditions on bottomonium suppression in 5.02 TeV heavy-ion collisions
• Bottomonium suppression in PbPb collision at energies available at the CERN large hadron collider
• In-Medium Bottomonium Production in Heavy-Ion Collisions
• Bottomonium suppression at RHIC and LHC in an open quantum system approach

Cited by in corpus (1)

• Overview of high-density QCD studies with the CMS experiment at the LHC