scholarly journals Lambda polarization in polarized proton-proton collisions at BNL RHIC

2000 ◽  
Vol 62 (1) ◽  
Author(s):  
C. Boros ◽  
J. T. Londergan ◽  
A. W. Thomas
Keyword(s):  
Proton Proton ◽  
Proton Collisions ◽  
Polarized Proton ◽  
Proton Proton Collisions

scholarly journals Transverse spin transfer to Λ and Λ¯ hyperons in polarized proton-proton collisions at s=200  GeV

2018 ◽  
Vol 98 (9) ◽  
Author(s):  
J. Adam ◽  
L. Adamczyk ◽  
J. R. Adams ◽  
J. K. Adkins ◽  
G. Agakishiev ◽  
...  
Keyword(s):  
Spin Transfer ◽  
Transverse Spin ◽  
Proton Proton ◽  
Proton Collisions ◽  
Polarized Proton ◽  
200 Gev ◽  
Proton Proton Collisions

scholarly journals Measurement of Longitudinal Spin Asymmetries for Weak Boson Production in Polarized Proton-Proton Collisions at STAR

2016 ◽  
Vol 40 ◽  
pp. 1660019
Author(s):  
Jinlong Zhang
Keyword(s):  
Spin Asymmetry ◽  
Data Set ◽  
Proton Proton ◽  
Weak Boson ◽  
Spin Asymmetries ◽  
Proton Collisions ◽  
Double Spin ◽  
Polarized Proton ◽  
The Status ◽  
Proton Proton Collisions

The production of [Formula: see text] bosons in longitudinally polarized [Formula: see text] collisions is a powerful tool to study the spin-flavor structure of the proton. We report measurements of single- and double-spin asymmetries for [Formula: see text] and [Formula: see text] production in longitudinally polarized proton-proton collisions at [Formula: see text] GeV at RHIC. The single-spin asymmetry results for [Formula: see text] from data sets collected by STAR experiment in 2011 and 2012 provided new constraints on proton’s polarized sea quark distributions and prefer a sizable value for [Formula: see text] polarization. The status for the analysis of a much larger data set collected by STAR in 2013 will also be given.

scholarly journals Tensor Charge of the Nucleon on a Lattice

1997 ◽  
Vol 50 (1) ◽  
pp. 205
Author(s):  
Tetsuo Hatsuda
Keyword(s):  
Lattice Qcd ◽  
Statistical Error ◽  
Large Error ◽  
Axial Charge ◽  
Proton Proton ◽  
Proton Collisions ◽  
Polarized Proton ◽  
Error Bars ◽  
Proton Proton Collisions

The tensor charge of the nucleon, which will be measured in Drell-Yan processes in polarized proton–proton collisions at the RHIC, is studied in a quenched lattice QCD simulation. On the 163 × 20 lattice with β = 5·7, connected parts of the tensor charge are determined with small statistical error, while the disconnected parts are found to be small with relatively large error bars. The flavour-singlet tensor charge (δΣ = du + δd + δs) is not suppressed, as opposed to the flavour-singlet axial charge (ΔΣ = Δu + Δd + Δs).

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