TY  - CONF
AU  - Drachenberg, James L.
TI  - Constraining Transversity and Nucleon Transverse-polarization Structure Through Polarized-proton Collisions at STAR
IS  - DESY-PROC-2014-04
CY  - Hamburg
PB  - Deutsches Elektronen-Synchrotron, DESY
M1  - PUBDB-2015-05545
M1  - DESY-PROC-2014-04
SP  - 181-184
PY  - 2014
AB  - Studies of jet and di-hadron production from polarized-proton collisions can expand current knowledge of nucleon transverse-polarization structure. In data collected in 2006 at √s=200 GeV, STAR observes for the first time in p<sup>↑</sup>+p nonzero asymmetries from transversity coupled to Collins and di-hadron fragmentation functions. Measurements at 500 GeV allow sensitivity to different mixes of partonic subprocesses; and comparisons of all measurements at 200 and 500 GeV may enlighten theoretical questions concerning evolution, universality, and factorization-breaking in non-collinear formulations of pQCD. Results from analyses of STAR data collected in 2011 at √s=500 GeV are presented, including first-ever measurements offering constraints on models involving gluon linear polarization.
T2  - Panic2014
CY  - 25 Aug 2014 - 29 Aug 2014, Hamburg (Germany)
Y2  - 25 Aug 2014 - 29 Aug 2014
M2  - Hamburg, Germany
KW  - transversity (INSPIRE)
KW  - polarization: linear (INSPIRE)
KW  - gluon (INSPIRE)
KW  - structure (INSPIRE)
KW  - p (INSPIRE)
KW  - nucleon (INSPIRE)
KW  - STAR (INSPIRE)
KW  - Brookhaven RHIC Coll (INSPIRE)
KW  - hadron hadron (INSPIRE)
KW  - jet (INSPIRE)
KW  - fragmentation function (INSPIRE)
KW  - universality (INSPIRE)
KW  - sensitivity (INSPIRE)
KW  - asymmetry (INSPIRE)
KW  - factorization (INSPIRE)
KW  - Collins (INSPIRE)
KW  - Brookhaven Lab (INSPIRE)
KW  - 500 GeV (INSPIRE)
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)15
DO  - DOI:10.3204/DESY-PROC-2014-04/78
UR  - https://bib-pubdb1.desy.de/record/291729
ER  -