2015 Fiscal Year Final Research Report
Measurement of Absolute Amount of Anti-Quarks in Proton at SeaQuest Experiment
Project/Area Number |
25800133
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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Research Institution | Tokyo Institute of Technology |
Principal Investigator |
Nakano Kenichi 東京工業大学, 理工学研究科, 助教 (20525779)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
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Keywords | 陽子 / 反クォーク分布 / フレーバー非対称性 / Drell-Yan反応 |
Outline of Final Research Achievements |
The Drell-Yan process from proton+proton and proton+deuteron reactions was measured using proton beam and liquid hydrogen/deuterium targets at Fermilab in USA. It is aimed at deriving the asymmetry and the absolute amounts of anti-up and anti-down quarks in the proton. Physics data were accumulated in three data-taking periods from H25/11 to H28/07 (planned), and in the first period a detector for absolute beam intensity was developed and installed. The physics data were analyzed and a preliminary result of the asymmetry of anti-up and anti-down quarks was obtained.
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Free Research Field |
素粒子・原子核物理学実験
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