The STAR W Program : New Results and Future Measurements

Details The STAR W Program : New Results and Future Measurements The STAR W Program : New Results and Future Measurements

2010-06-02

arxiv.org/abs/1006.0445v1

Physics

High Energy Physics

High Energy Physics - Experiment

Lake Louise Winter Institute 2010, 15th-20th February 2010 Alberta, Canada

Scientific paper

The production of $W^\pm$ bosons in longitudinally polarized p+p collisions at RHIC provides a new means of studying the spin-flavour asymmetries of the proton sea quark spin distributions. Details of the W$^\pm$ event selection through the $e^\pm$ decay channel at mid-rapidity are presented, along with preliminary results for the production cross section and parity-violating single-spin asymmetry, $A_L$, from the STAR Collaboration's 2009 data set at $\sqrt{s} = 500$ GeV. Lastly, the expected sensitivities for future running are discussed.

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