The contribution of the gluon helicity to the spin of the proton is being studied
through the use of the unique capability of the Relativistic Heavy-Ion Collider (RHIC)
to collide polarized protons at √s = 200 GeV and √s = 510 GeV. The kinematic
coverage of the Solenoidal Tracker At RHIC (STAR) allows access to gluons through
quark-gluon and gluon-gluon scattering processes which dominate jet production at
low and medium transverse momentum. The polarized gluon distribution function,
∆g(x), can be constrained through a global analysis by measuring the longitudinal
double-spin asymmetry (ALL) of inclusive jet and dijet production. Published inclusive jet results from 2009 at mid-rapidity (|η|< 1) at √s = 200 GeV have been used in global analyses and suggest a statistically significant non-zero truncated first moment of ∆g(x) for x > 0.05. An additional data sample with an integrated luminosity of 43 pb−1 has been collected in 2015, which is over twice as large as the corresponding 20 pb−1 of the 2009 data. Longitudinal double-spin asymmetry results from this new large data sample will further improve the precision of ∆g(x) for x > 0.05. / Physics
| Identifer | oai:union.ndltd.org:TEMPLE/oai:scholarshare.temple.edu:20.500.12613/7678 |
| Date | January 2022 |
| Creators | Lukow, Nicholas, 0000-0002-0124-562X |
| Contributors | Surrow, Bernd, Napolitano, Jim, Constantinou, Martha, Sichtermann, Ernst P. |
| Publisher | Temple University. Libraries |
| Source Sets | Temple University |
| Language | English |
| Detected Language | English |
| Type | Thesis/Dissertation, Text |
| Format | 239 pages |
| Rights | IN COPYRIGHT- This Rights Statement can be used for an Item that is in copyright. Using this statement implies that the organization making this Item available has determined that the Item is in copyright and either is the rights-holder, has obtained permission from the rights-holder(s) to make their Work(s) available, or makes the Item available under an exception or limitation to copyright (including Fair Use) that entitles it to make the Item available., http://rightsstatements.org/vocab/InC/1.0/ |
| Relation | http://dx.doi.org/10.34944/dspace/7650, Theses and Dissertations |
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