Experimental study of the γp→ηp reaction with the crystal ball detector at the mainz microtron (mami-c); Physical Review C - Nuclear Physics; Vol. 82, № 3

Experimental study of the γp→ηp reaction with the crystal ball detector at the mainz microtron (mami-c); Physical Review C - Nuclear Physics; Vol. 82, № 3

Dades bibliogràfiques
Parent link:Physical Review C - Nuclear Physics.— , 1970-
Vol. 82, № 3.— 2010.— [035208, 13 p.]
Altres autors: Mcnicoll E. F., Annand J. R. M., Codling J. R. M., Codling R. F. B., Downie E. J., Hamilton D., Kellie J. D., Livingston K., Macgregor I. J. D., Mcgeorge J. C., Mckinnon B., Robinson J., Rosner G., Prakhov S., Brudvik J., Nefkens B. M. K., Starostin A., Suarez A., Suarez I. M., Strakovsky I. I., Arndt R. A., Briscoe W. J., Demissie B. T., Freehart B., Heid E., Marinides Z., Oussena B., Paris M. W., Workman R. L., Aguar-Bartolomé B., Akasoy l. K., Arends H. J., Jahn O., Martinez M., Ostrick M., Otte P. B., Schumann S., Thomas A., Iator I., Unverzagt M., Azimov Y. I., Bekrenev V. S., Koulbardis A. A., Kruglov S. P., Bantawa K., Manley D. M., Beck R., Nikolaev A., Berghäuser H., Drexler P., Kotulla M., Metag V., Novotny R., Thiel M., Braghieri A., Mshkarenkov A., Pedroni P., Rostomyan T., Branford D., Glazier D. I., Jude T. C., Sikora M. H., Watts M. H., Watts D. P., Cherepnya S., Fil'kov l. V., Kashevarov V. L., Fiks (Fix) A. I. Alexander Ivanovich, Hornidge D., Middleton D., Jaegle I., Keshelashvili I., Krusche B., Maghrbi Y., Pheron F., Werthmüller D., Zehr F., Kondratiev R., Lisin V., Polonski A., Korolija M., Mekterovic D., Micanovic S., Supek I., Zamboni I., Sober D. I.
Sumari:Title screen
The γp→ηp reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1.49⩽W⩽1.87 GeV). Bremsstrahlung photons produced by the 1.5-GeV electron beam of the Mainz Microtron MAMI-C and momentum analyzed by the Glasgow tagging spectrometer were used for the η-meson production. Our accumulation of 3.8×106 γp→ηp→3π0p→6γp events allows a detailed study of the reaction dynamics. The γp→ηp differential cross sections were determined for 120 energy bins and the full range of the production angles. Our data show a dip nearW=1680 MeV in the total cross section caused by a substantial dip in η production at forward angles. The data are compared to predictions of previous SAID and MAID partial-wave analyses and to the latest SAID and MAID fits that included our data.
Idioma:anglès
Publicat: 2010
Matèries:
труды учёных ТПУ
электронный ресурс
результаты эксперимента
экспериментальные исследования
Accés en línia:http://dx.doi.org/10.1103/PhysRevC.82.035208
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=650229
Descripció
Sumari:Title screen
The γp→ηp reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1.49⩽W⩽1.87 GeV). Bremsstrahlung photons produced by the 1.5-GeV electron beam of the Mainz Microtron MAMI-C and momentum analyzed by the Glasgow tagging spectrometer were used for the η-meson production. Our accumulation of 3.8×106 γp→ηp→3π0p→6γp events allows a detailed study of the reaction dynamics. The γp→ηp differential cross sections were determined for 120 energy bins and the full range of the production angles. Our data show a dip nearW=1680 MeV in the total cross section caused by a substantial dip in η production at forward angles. The data are compared to predictions of previous SAID and MAID partial-wave analyses and to the latest SAID and MAID fits that included our data.
DOI:10.1103/PhysRevC.82.035208

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