Test the time-reversal modified universality of the Sivers function

Abstract

We derive the time-reversal modified universality for both quark and gluon Sivers function from the parity and time-reversal invariance of QCD. We calculate the single transverse-spin asymmetry of inclusive lepton from the decay of $W$ bosons in polarized proton-proton collision at RHIC, in terms of the Sivers function. We find that although the asymmetry is diluted from the $W$ decay, the lepton asymmetry is at the level of several percent and is measurable for a good range of lepton rapidity at RHIC. We argue that this measurable lepton asymmetry at RHIC is an excellent observable for testing the time-reversal modified universality of the Sivers function.

4 pages, 4 figures

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• Novel Phenomenology of Parton Distributions from the Drell-Yan Process
• Study of the sign change of the Sivers function from STAR Collaboration W/Z production data
• Extraction of the Sivers function from SIDIS, Drell-Yan, and $W^{\pm }/Z$ boson production data with TMD evolution
• Process dependent Sivers function and implications for single spin asymmetry in inclusive hadron production
• Global analysis of the Sivers functions at NLO+NNLL in QCD
• Sivers asymmetry extracted in SIDIS at the hard scale of the Drell-Yan process at COMPASS
• Global fitting of single spin asymmetry: an attempt
• Extracting the Transverse Momentum Dependent Polarizing Fragmentation Functions
• Collinear matching for Sivers function at next-to-leading order
• Helicity Parton Distributions from Spin Asymmetries in W-Boson Production at RHIC
• Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at $\sqrt{s}=500$ GeV
• QCD evolution of naive-time-reversal-odd fragmentation functions
• Testing the process dependence of the Sivers function via hadron distributions inside a jet
• Next-to-leading order transverse momentum-weighted Sivers asymmetry in semi-inclusive deep inelastic scattering: the role of the three-gluon correlator
• Extraction of the distribution function $h_{1T}^{\perp }$ from experimental data
• Transverse Momentum Dependent Parton Distribution/Fragmentation Functions at an Electron-Ion Collider
• TMDs and SSAs in hadronic interactions
• Transverse momentum-weighted Sivers asymmetry in semi-inclusive deep inelastic scattering at next-to-leading order
• Phenomenology of transverse spin: past, present and future
• Single transverse spin asymmetry of dilepton production near $Z^0$ pole
• Sivers asymmetry of Drell-Yan production in small-$x$ regime
• Predictive power of transverse-momentum-dependent distributions
• Transverse momentum spectrum of dilepton pair in the unpolarized ${\pi }^{-}N$ Drell-Yan process within TMD factorization
• Transverse spin asymmetries for W-production in proton-proton collisions
• On a possible node in the Sivers and Qiu-Sterman functions
• The Sivers Asymmetry in Hadronic Dijet Production
• Quark-gluon correlation functions relevant to single transverse spin asymmetries
• Dihadron Azimuthal Correlation from Collins Effect in Unpolarized Hadron Collisions
• Collins and Sivers effects in p(transv. polarized) p --> jet pion X: Universality and process dependence
• Sivers Asymmetry in the pion induced Drell-Yan process at COMPASS within TMD factorization
• Spin asymmetries for vector boson production in polarized p+p collisions
• Sivers function of sea quarks in the light-cone model
• General positivity bounds for spin observables in particle inclusive production
• Extraction of the Sivers function with deep neural networks
• Double Sivers effect asymmetries and their impact on transversity measurements at RHIC
• Positivity bounds for Sivers functions
• Effect of sea quarks on single-spin asymmetries $A_N^{W^{\pm }}$ in transversely polarized pp collisions at RHIC
• Sivers Asymmetry with QCD Evolution
• Nucleon Tomography with 0-jettiness