[Jlab-seminars] Physics Seminar: Evan McClellan; "Exploring the Nucleon Sea with SeaQuest at Fermilab"

[Stephanie Tysor]

*Physics Seminar*

*Evan McClellan*

*University of Illinois, Urbana*

**

/"/Exploring the Nucleon Sea with SeaQuest at Fermilab/"/

*Abstract*

/SeaQuest is a fixed-target dimuon experiment currently taking data 
using Fermilab's 120 GeV proton beam and hydrogen, deuterium, carbon, 
iron, and tungsten targets. The dimuon data facilitate a range of 
interesting measurements, addressing various open questions in hadron 
physics. The primary goal of SeaQuest is the investigation of nucleon 
antiquark structure via the Drell-Yan process on liquid hydrogen and 
deuterium targets. Dimuon data from the heavy targets allow SeaQuest to 
explore nuclear effects in Drell-Yan and charmonium production. The 
large sample of dimuon events from the iron beam dump can be analyzed to 
gain insights into a wide variety of physics topics, including Drell-Yan 
and harmonium angular distributions (polarization, Boer-Mulders), pT 
distribtions of Drell-Yan and charmonium in p+Fe interactions, and 
possibly near-threshold upsilon-production. One important component of 
SeaQuest is the new, FPGA-based trigger system. The trigger uses 
pipelined lookup tables to identify pairs of candidate muon tracks with 
sigle-beam-pulse resolution. This talk will address the goals, 
challenges, and preliminary results of the SeaQuest experiment, together 
with the implementation and performance of the new trigger system.///

Wednesaday, October 21, 2015

2:00pm

CEBAF F113

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