New analysis of ηπ tensor resonances measured at the COMPASS experiment; Physics Letters B; Vol. 779

书目详细资料
Parent link:Physics Letters B
Vol. 779.— 2018.— P. 464-472
其他作者: Jackura A. Andrew, Fernandez-Ramirez C. Cesar, Fox G. Ch. Geoffrey Charles, Dusaev R. R. Renat Ramilyevich, Levchenko E. A. Evgeny Anatolievich, Mamon S. A. Sergey Aleksandrovich, Vasilishin B. I. Bogdan Ivanovich, Burtsev V. E. Vitaly Evgenjevich, Chumakov A. G. Aleksandr Grigorjevich, Lyubovitskiy (Lyubovitskij) V. E. Valery Efimovich
总结:Title screen
We present a new amplitude analysis of the ηπ D-wave in the reaction π−p→ηπ−p measured by COMPASS. Employing an analytical model based on the principles of the relativistic S-matrix, we find two resonances that can be identified with the a2(1320) and the excited a2′(1700), and perform a comprehensive analysis of their pole positions. For the mass and width of the a2 we find M=(1307±1±6) MeV and Γ=(112±1±8) MeV, and for the excited state a2′ we obtain M=(1720±10±60) MeV and Γ=(280±10±70) MeV, respectively.
语言:英语
出版: 2018
主题:
在线阅读:https://doi.org/10.1016/j.physletb.2018.01.017
格式: 电子 本书章节
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666925

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