2010 Fiscal Year Final Research Report
The Development of the Polarized Target of COMPASS Spectrometer for the Measurement of Drell-Yan Reaction
| Project/Area Number |
20540299
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Chubu University |
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Principal Investigator |
HORIKAWA Naoaki Chubu University, 総合学術研究院, 客員教授 (70022697)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 核子スピン / Drell-Yan / スピン偏極標的 / クォークスピン / COMPASS実験 |
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| Research Abstract |
We performed the preliminary experiments at CERN for the Drell-Yan experiment to reveal the contribution of the quark-gluon angular momentum to the nucleon spin. The preliminary experiments consist of two parts. One is to check the decrease of the target polarization by heat caused by beam. Another is to check the background events using pion beam. Both tests assured the Drell-Yan experiment without decreasing the target polarization and with less background using the shorter length of the target and hadron absorber. We made the target holder which will be used for the Drell-Yan experiment. Looking those preliminary results, CERN decided to share the measuring time to COMPASS for Drell-Yan experiment during2013-2015.
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