Gluonic Spin Contribution to Proton Spin at NLO

2011 ◽  
Author(s):  
Andrew Casey
Keyword(s):  
Proton Spin ◽  
Spin Contribution

scholarly journals RECENT RESULTS ON HIGH-ENERGY SPIN PHENOMENA OF GLUONS AND SEA-QUARKS IN POLARIZED PROTON-PROTON COLLISIONS AT RHIC AT BNL

2014 ◽  
Vol 25 ◽  
pp. 1460033 ◽  
Author(s):  
BERND SURROW
Keyword(s):  
Heavy Ion ◽  
High Energy ◽  
Proton Spin ◽  
Relativistic Heavy Ion Collider ◽  
Spin Physics ◽  
Proton Collisions ◽  
Physics Program ◽  
Quark Spin ◽  
Polarized Proton ◽  
Spin Contribution

The STAR experiment at the Relativistic Heavy-Ion Collider at Brookhaven National Laboratory is carrying out a spin physics program in high-energy polarized proton collisions at [Formula: see text] GeV and [Formula: see text] GeV to gain a deeper insight into the spin structure and dynamics of the proton. One of the main objectives of the spin physics program at RHIC is the precise determination of the polarized gluon distribution function. The STAR detector is well suited for the reconstruction of various final states involving jets, π0, π±, e± and γ, which allows to measure several different processes. Recent results suggest a gluon spin contribution to the proton spin at the same level as the quark spin contribution itself. The production of W bosons in polarized p+p collisions at [Formula: see text] GeV opens a new era in the study of the spin-flavor structure of the proton. W-(+) bosons are produced in [Formula: see text] collisions and can be detected through their leptonic decays, [Formula: see text], where only the respective charged lepton is measured. Results of W-(+) production suggest a large asymmetry between the polarization of anti-u and anti-d quarks.

Dispersion of proton spin-lattice relaxation in a cholesteric liquid crystal

1983 ◽  
Vol 44 (10) ◽  
pp. 1179-1184 ◽  
Author(s):  
M. Vilfan ◽  
R. Blinc ◽  
J. Dolinšek ◽  
M. Ipavec ◽  
G. Lahajnar ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Lattice Relaxation ◽  
Proton Spin ◽  
Spin Lattice Relaxation ◽  
Spin Lattice

scholarly journals Publisher Correction: What we know and what we don’t know about the proton spin after 30 years

2020 ◽  
Vol 3 (1) ◽  
pp. 65-65
Author(s):  
Xiangdong Ji ◽  
Feng Yuan ◽  
Yong Zhao
Keyword(s):  
Proton Spin

Proton spin thermometry and molecular dynamics of the liquid crystal PAA in the solid phase

1974 ◽  
Vol 61 (11) ◽  
pp. 4646-4649 ◽  
Author(s):  
R. T. Thompson ◽  
D. W. Kydon ◽  
M. M. Pintar
Keyword(s):  
Molecular Dynamics ◽  
Liquid Crystal ◽  
Solid Phase ◽  
Proton Spin
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