Polarized Lambda-Baryon Production in pp Collisions

Abstract

We study the production of longitudinally polarized Lambda-baryons in single-spin pp collisions at RHIC and HERA-N as a means of determining the spin-dependent Lambda fragmentation functions. It is shown that a measurement of the rapidity distribution of the Lambda's would provide an excellent way of clearly discriminating between various recently suggested sets of polarized Lambda fragmentation functions that are all compatible with present e^+e^- data. We also address the main theoretical uncertainties, which appear to be well under control.

11 pages, LaTeX, 2 figures, uses epsfig and amssymb styles

References in corpus (3)

• QCD Analysis of Unpolarized and Polarized Lambda - Baryon Production in Leading and Next-to-Leading Order
• Asymmetry of Lambda Baryons in Hadronic Z^0 Decays
• Next-to-Leading Order Analysis of Inclusive and Semi-inclusive Polarized Data

Cited by in corpus (42)

• Prospects for Spin Physics at RHIC
• Parton Fragmentation Functions
• The Spin Structure of the Nucleon
• Flavor Structure of the Nucleon Sea
• Quark Structure of $\Lambda$ from $\Lambda$-Polarization in Z Decays
• Polarized jet fragmentation functions
• The Flavor and Spin Structure of Hyperons from Quark Fragmentation
• Quark Flavor Separation in $\Lambda$-Baryon Fragmentation
• Dihadron interference fragmentation functions in proton-proton collisions
• Diffractive production of $\Lambda$ hyperons in the high-energy limit of strong interactions
• Measurement of the Antilambda Polarization in nu_mu Charged Current Interactions in the NOMAD Experiment
• Bounds on Transverse Spin Asymmetries for Lambda Baryon Production in pp Collisions at BNL RHIC
• Longitudinal Spin Transfer to $\Lambda$ and $\bar{\Lambda }$ Hyperons in Polarized Proton-Proton Collisions at $\sqrt{s}$ = 200 GeV
• Core meets corona: a two-component source to explain Lambda and anti-Lambda global polarization in semi-central heavy-ion collisions
• Polarized hyperon production in single-inclusive electron-positron annihilation at next-to-leading order
• Quark Distributions of Octet Baryons from SU(3) Symmetry
• Anti-Lambda polarization in high energy pp collisions with polarized beam
• Lambda Polarization in Polarized Proton-Proton Collisions at RHIC
• Structure and Production of Lambda Baryons
• Improved measurement of the longitudinal spin transfer to $\Lambda$ and $\bar{\Lambda }$ hyperons in polarized proton-proton collisions at $\sqrt{s}$ = 200 GeV
• Spin Transfers for Baryon Production in Polarized pp Collisions at RHIC-BNL
• Several Topics on Transverse Momentum-Dependent Fragmentation Functions
• Quark to $\Lambda$-hyperon spin transfers in the current-fragmentation region
• Double Spin Asymmetries for Large-$p_T$ Hadron Production in Semi-Inclusive DIS
• Anti-Hyperon polarization in high energy pp collisions with polarized beams
• Probing gluon helicity distribution and quark transversity through hyperon polarization in singly polarized pp collisions
• Parton Densities and Fragmentation Functions from Polarized Lambda Production in Semi-Inclusive DIS
• $q\to \Lambda$ Fragmentation Function and Nucleon Transversity Distribution in a Diquark Model
• Spin transfer and polarization of antihyperons in lepton induced reactions
• Longitudinal and transverse spin transfer to $\Lambda$ and $\overline{\Lambda }$ hyperons in polarized $p$+$p$ collisions at $\sqrt{s}=200$ GeV
• Quark Fragmentation Functions in a Diquark Model for $\Lambda$ Production
• Dihadron helicity correlation in photon-nucleus collisions
• Strange quark-antiquark asymmetry of nucleon sea from $\Lambda /\bar{\Lambda }$ polarization
• Nucleon strangeness polarization from $\Lambda /\bar{\Lambda }$ hyperon production in polarized proton-proton collision at RHIC
• The longitudinal polarization of hyperons in the forward region in polarized $pp$ collisions
• The Quark Distributions of Baryons
• Two-component source to explain $\Lambda$ and $\bar{\Lambda }$ global polarization in non-central heavy-ion collisions
• New prospects for polarized hyperon fragmentation functions
• Longitudinal spin transfer of Lambda and anti-Lambda in polarized pp collisions at \sqrt s=200 GeV at STAR
• Polarized lepton nucleon scattering -- summary of the theory talks on spin physics at DIS 99
• Spin structure of nucleon and spin transfer in high energy fragmentation process
• Probing Polarized Gluon Distributions through Charmed Hadron Production in Polarized pp Collisions at BNL--RHIC Energy