دورية أكاديمية
$$\pi ^-p\rightarrow \eta ^{(\prime )}\, \pi ^- p$$ π - p → η ( ′ ) π - p in the double-Regge region
| العنوان: | $$\pi ^-p\rightarrow \eta ^{(\prime )}\, \pi ^- p$$ π - p → η ( ′ ) π - p in the double-Regge region |
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| المؤلفون: | Ł. Bibrzycki, C. Fernández-Ramírez, V. Mathieu, M. Mikhasenko, M. Albaladejo, A. N. Hiller Blin, A. Pilloni, A. P. Szczepaniak |
| المصدر: | European Physical Journal C: Particles and Fields, Vol 81, Iss 7, Pp 1-25 (2021) |
| بيانات النشر: | SpringerOpen, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| مصطلحات موضوعية: | Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| الوصف: | Abstract The production of $$\eta ^{(\prime )}\pi $$ η ( ′ ) π pairs constitutes one of the golden channels to search for hybrid exotics, with explicit gluonic degrees of freedom. Understanding the dynamics and backgrounds associated to $$\eta ^{(\prime )}\pi $$ η ( ′ ) π production above the resonance region is required to impose additional constraints to the resonance extraction. We consider the reaction $$\pi ^-p\rightarrow \eta ^{(\prime )} \pi ^- \,p$$ π - p → η ( ′ ) π - p measured by COMPASS. We show that the data in $$2.4< m_{\eta ^{(\prime )}\pi } < 3.0{\mathrm {\,GeV}} $$ 2.4 < m η ( ′ ) π < 3.0 GeV can be described by amplitudes based on double-Regge exchanges. The angular distribution of the meson pairs, in particular in the $$\eta ' \pi $$ η ′ π channel, can be attributed to flavor singlet exchanges, suggesting the presence of a large gluon content that couples strongly to the produced mesons. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1434-6044 1434-6052 |
| العلاقة: | https://doaj.org/toc/1434-6044Test; https://doaj.org/toc/1434-6052Test |
| DOI: | 10.1140/epjc/s10052-021-09420-1 |
| الوصول الحر: | https://doaj.org/article/ec27b097263c42c5aa1b96d1106c908aTest |
| رقم الانضمام: | edsdoj.27b097263c42c5aa1b96d1106c908a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 14346044 14346052 |
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| DOI: | 10.1140/epjc/s10052-021-09420-1 |