scholarly journals Double spin asymmetries ANN and ASS at s=200 GeV in polarized proton–proton elastic scattering at RHIC

2007 ◽  
Vol 647 (2-3) ◽  
pp. 98-103 ◽  
Author(s):  
S. Bültmann ◽  
I.H. Chiang ◽  
R.E. Chrien ◽  
A. Drees ◽  
R.L. Gill ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Proton Proton ◽  
Spin Asymmetries ◽  
Double Spin ◽  
Proton Elastic Scattering ◽  
Polarized Proton

Results on transverse spin asymmetries in the polarized proton-proton elastic scattering in the CNI region at STAR

2011 ◽  
Author(s):  
D. Svirida ◽  
Marcella Capua ◽  
Roberto Fiore ◽  
Igor Ivanov ◽  
Alessandro Papa ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Transverse Spin ◽  
Proton Proton ◽  
Spin Asymmetries ◽  
Proton Elastic Scattering ◽  
Polarized Proton

scholarly journals Transverse Spin Asymmetries in the CNI Region of Elastic Proton-Proton Scattering at s=200 GeV

2016 ◽  
Vol 40 ◽  
pp. 1660056 ◽  
Author(s):  
Dmitry Svirida
Keyword(s):  
Elastic Scattering ◽  
Center Of Mass ◽  
Heavy Ion ◽  
Transverse Spin ◽  
Relativistic Heavy Ion Collider ◽  
Proton Proton ◽  
Spin Asymmetries ◽  
Double Spin ◽  
Proton Elastic Scattering ◽  
Elastic Proton

Precise measurements of transverse spin asymmetries in proton-proton elastic scattering at very small values of four-momentum transfer squared, [Formula: see text], have been performed using the Relativistic Heavy Ion Collider (RHIC) polarized proton beams. The measurements of both single and double spin asymmetries were made at the center-of-mass energy [Formula: see text] GeV and in the region [Formula: see text] [Formula: see text], which was accessed using Roman Pot devices incorporated into the STAR experimental setup. The obtained set of asymmetries is sensitive to the poorly known hadronic contribution to the spin-flip amplitudes and provide significant constraints for the theoretical descriptions of the reaction mechanism of proton-proton elastic scattering at high energies.

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 SPIN PHYSICS WITH STAR

2003 ◽  
Vol 18 (08) ◽  
pp. 1335-1342 ◽  
Author(s):  
◽  
JOANNA KIRYLUK
Keyword(s):  
Star Collaboration ◽  
Gluon Polarization ◽  
Proton Proton ◽  
Spin Asymmetries ◽  
Single Spin ◽  
Double Spin ◽  
Single Spin Asymmetries ◽  
Polarized Proton ◽  
First Time ◽  
Proton Proton Collisions

The STAR collaboration aims to study polarized proton-proton collisions at RHIC. The emphasis of the spin run this year is on transverse single spin asymmetries. Beyond 2001, we aim to determine directly and precisely the gluon polarization, as well as the polarizations of the u, [Formula: see text], d and [Formula: see text] quarks in the proton by measuring in addition longitudinal and double spin asymmetries. Furthermore, we aim to measure for the first time the quark transversity distributions. These measurements will improve substantially the knowledge and understanding of the spin structure of the nucleon.

scholarly journals First measurement of AN at s=200 GeV in polarized proton–proton elastic scattering at RHIC

2006 ◽  
Vol 632 (2-3) ◽  
pp. 167-172 ◽  
Author(s):  
S. Bültmann ◽  
I.H. Chiang ◽  
R.E. Chrien ◽  
A. Drees ◽  
R.L. Gill ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Proton Proton ◽  
Proton Elastic Scattering ◽  
Polarized Proton

scholarly journals Single spin asymmetry AN in polarized proton–proton elastic scattering at s=200 GeV

2013 ◽  
Vol 719 (1-3) ◽  
pp. 62-69 ◽  
Author(s):  
L. Adamczyk ◽  
G. Agakishiev ◽  
M.M. Aggarwal ◽  
Z. Ahammed ◽  
A.V. Alakhverdyants ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Spin Asymmetry ◽  
Single Spin Asymmetry ◽  
Proton Proton ◽  
Single Spin ◽  
Proton Elastic Scattering ◽  
Polarized Proton

Polarized Proton-Proton Elastic Scattering at RHIC

2009 ◽  
Author(s):  
D. Plyku ◽  
Donald G. Crabb ◽  
Yelena Prok ◽  
Matt Poelker ◽  
Simonetta Liuti ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Proton Proton ◽  
Proton Elastic Scattering ◽  
Polarized Proton
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