Measurement of the beam asymmetry Σ for π0 and ηphotoproduction on the proton at Eγ=9 GeV
| Parent link: | Physical Review C.— , 1970- Vol. 95, iss. 4.— 2017.— [042201, 6 р.] |
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| Summary: | Title screen We report measurements of the photon beam asymmetry Σ for the reactions γp→pπ0 and γp→pηfrom the GlueX experiment using a 9 GeV linearly polarized, tagged photon beam incident on a liquid hydrogen target in Jefferson Lab's Hall D. The asymmetries, measured as a function of the proton momentum transfer, possess greater precision than previous π0 measurements and are the first ηmeasurements in this energy regime. The results are compared with theoretical predictions based on t-channel, quasiparticle exchange and constrain the axial-vector component of the neutral meson production mechanism in these models. Режим доступа: по договору с организацией-держателем ресурса |
| Language: | English |
| Published: |
2017
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| Subjects: | |
| Online Access: | https://doi.org/10.1103/PhysRevC.95.042201 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=655278 |
| Summary: | Title screen We report measurements of the photon beam asymmetry Σ for the reactions γp→pπ0 and γp→pηfrom the GlueX experiment using a 9 GeV linearly polarized, tagged photon beam incident on a liquid hydrogen target in Jefferson Lab's Hall D. The asymmetries, measured as a function of the proton momentum transfer, possess greater precision than previous π0 measurements and are the first ηmeasurements in this energy regime. The results are compared with theoretical predictions based on t-channel, quasiparticle exchange and constrain the axial-vector component of the neutral meson production mechanism in these models. Режим доступа: по договору с организацией-держателем ресурса |
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| DOI: | 10.1103/PhysRevC.95.042201 |