Citation
Winstein, Bruce Darrell (1970) The polarization of the recoil proton in ETA photoproduction. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/9Y7A-3S44. https://resolver.caltech.edu/CaltechTHESIS:08312015-110451298
Abstract
We measured the recoil proton polarization in the process γp → pη at the 1.5 GeV Caltech electron synchrotron, at photon energies from 0.8 to 1.1 GeV, and at center-of-mass production angles around 90°. A counter-spark chamber array was used to determine the kinematics of all particles in the final state of the partial mode γp → pη (η → 2γ). The protons' polarization was determined by measuring an asymmetry in scattering off carbon. Analysis of 280,000 pictures yielded 2400 useful scatters with a background which was 30% of the foreground. The polarization results show a sizeable opposite parity interference at 830 MeV, 950 MeV, and 1100 MeV.
| Item Type: | Thesis (Dissertation (Ph.D.)) | ||||||||
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| Subject Keywords: | Physics | ||||||||
| Degree Grantor: | California Institute of Technology | ||||||||
| Division: | Physics, Mathematics and Astronomy | ||||||||
| Major Option: | Physics | ||||||||
| Thesis Availability: | Public (worldwide access) | ||||||||
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| Defense Date: | 21 May 1970 | ||||||||
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| Record Number: | CaltechTHESIS:08312015-110451298 | ||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechTHESIS:08312015-110451298 | ||||||||
| DOI: | 10.7907/9Y7A-3S44 | ||||||||
| Default Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 9125 | ||||||||
| Collection: | CaltechTHESIS | ||||||||
| Deposited By: | Benjamin Perez | ||||||||
| Deposited On: | 31 Aug 2015 18:26 | ||||||||
| Last Modified: | 09 Nov 2022 19:20 |
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