SN0331 : Extracting the Proton u_bar Content from pp -> Direct Photon and Jet Cross Sections
Updated on Sun, 2007-07-15 20:13 by testadmin. Originally created by chajecki on 2007-06-18 19:57.
| Author(s) | : | R. G. Badalian and S. Heppelmann |
| Date | : | Apr. 6, 1998 |
| File(s) | : | sn0331.ps.gz |
| Abstract | : | An analysis procedure is proposed to measure the antiquark distributions in the proton over the region 0.01 < x < 0.1. The procedure involves the measurement of high pt asymmetric direct photon and jet final states in pp interactions. This measurement can be made at the RHIC collider running in pp mode at an energy of sqrt(s)=500GeV/c. This analysis identifies a region of phase space where the contribution from quark-antiquark annihilation uncharacteristically approaches the magnitude of the contribution from the leading process, quark-gluon Compton scattering. The forward-backward angular asymmetry in the parton center of mass is sensitive to the antiquark content of the proton and the u_bar parton density function can be extracted. |
| Keywords | : | |
| Category | : | PWG |
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