Precision Measurement of the Longitudinal Double-spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at {u221A}s
Download or Read eBook Precision Measurement of the Longitudinal Double-spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at {u221A}s PDF written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle.
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2015 |
ISBN-10 | : OCLC:1066377582 |
ISBN-13 | : |
Rating | : 4/5 (82 Downloads) |
Book Synopsis Precision Measurement of the Longitudinal Double-spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at {u221A}s by :
Book excerpt: We report a new measurement of the midrapidity inclusive jet longitudinal double-spin asymmetry, ALL, in polarized pp collisions at center-of-mass energy √s = 200 GeV. The STAR data place stringent constraints on polarized parton distribution functions extracted at next-to-leading order from global analyses of inclusive deep-inelastic scattering (DIS), semi-inclusive DIS, and RHIC pp data. Lastly, the measured asymmetries provide evidence at the 3? level for positive gluon polarization in the Bjorken-x region x > 0.05 .