دورية أكاديمية
First Measurement of the Helicity Asymmetry E in ƞ Photoproduction on the Proton
| العنوان: | First Measurement of the Helicity Asymmetry E in ƞ Photoproduction on the Proton |
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| المؤلفون: | Senderovich, I., Morrison, B.T., Dugger, M., Ritchie, B.G., Pasyuk, E., Tucker, R., Brock, J., Carlin, C., Keith, C.D., Meekins, D. G., Prok, Y. |
| المصدر: | Physics Faculty Publications |
| بيانات النشر: | ODU Digital Commons |
| سنة النشر: | 2016 |
| المجموعة: | Old Dominion University: ODU Digital Commons |
| مصطلحات موضوعية: | ETA photoproduction, Polarization observable, Helicity asymmetry, CLAS, Photon, Beam, Bremsstrahlung, Baryons, System, Astrophysics and Astronomy, Nuclear, Physics |
| الوصف: | Results are presented for the first measurement of the double-polarization helicity asymmetry E for the ƞ photoproduction reaction ɣp -> ηp. Data were obtained using the FROzen Spin Target (FROST) with the CLAS spectrometer in Hall B at Jefferson Lab, covering a range of center-of-mass energy W from threshold to 2.15 GeV and a large range in center-of-mass polar angle. As an initial application of these data, the results have been incorporated into the Jülich-Bonn model to examine the case for the existence of a narrow N* resonance between 1.66 and 1.70 GeV. The addition of these data to the world database results in marked changes in the predictions for the Eobservable from that model. Further comparison with several theoretical approaches indicates these data will significantly enhance our understanding of nucleon resonances. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| العلاقة: | https://digitalcommons.odu.edu/physics_fac_pubs/39Test; https://digitalcommons.odu.edu/context/physics_fac_pubs/article/1039/viewcontent/Prok_2016_Firstmeasurement.pdfTest |
| DOI: | 10.1016/j.physletb.2016.01.044 |
| الإتاحة: | https://doi.org/10.1016/j.physletb.2016.01.044Test https://digitalcommons.odu.edu/physics_fac_pubs/39Test https://digitalcommons.odu.edu/context/physics_fac_pubs/article/1039/viewcontent/Prok_2016_Firstmeasurement.pdfTest |
| رقم الانضمام: | edsbas.3FC8B7FA |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.physletb.2016.01.044 |
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