Number of the records: 1
Precision Measurement of the Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at root s=200 GeV
- 1.
SYSNO ASEP 0448888 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Precision Measurement of the Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at root s=200 GeV Author(s) Adamczyk, L. (PL)
Bielčík, J. (CZ)
Bielčíková, Jana (UJF-V) RID, ORCID, SAI
Chaloupka, P. (CZ)
Pachr, M. (CZ)
Rusňák, Jan (UJF-V) RID, ORCID, SAI
Rusňáková, O. (CZ)
Šumbera, Michal (UJF-V) RID, ORCID, SAI
Tlustý, David (UJF-V)
Vértési, Robert (UJF-V)Number of authors 360 Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 115, č. 9 (2015), 092002Number of pages 7 s. Publication form Print - P Language eng - English Country US - United States Keywords STAR collaboration ; patron distibutions ; uncertainties Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects GA13-20841S GA ČR - Czech Science Foundation (CSF) Institutional support UJF-V - RVO:61389005 UT WOS 000360065900003 EID SCOPUS 84940707077 DOI 10.1103/PhysRevLett.115.092002 Annotation We report a new measurement of the midrapidity inclusive jet longitudinal double-spin asymmetry, A(LL), in polarized pp collisions at center-of-mass energy root 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. The measured asymmetries provide evidence at the 3 sigma level for positive gluon polarization in the Bjorken-x region x > 0.05. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2016
Number of the records: 1