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Title: | Study of eta(1475) and X(1835) in radiative J/psi decays to gamma phi |
Authors: | Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü. Tapan, İlhan 8905787000 |
Keywords: | Astronomy & astrophysics Physics |
Issue Date: | 6-Mar-2018 |
Publisher: | Amer Phyical |
Citation: | Ablikim, M. vd. (2018). ''Study of eta(1475) and X(1835) in radiative J/psi decays to gamma phi''. Physical Review D, 97(5). |
Abstract: | The decay J/psi -> gamma gamma phi is studied using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector. Two structures around 1475 MeV/c(2) and 1835 MeV/c(2) are observed in the gamma phi invariant mass spectrum for the first time. With a fit on the gamma phi invariant mass, which takes into account the interference between the two structures, and a simple analysis of the angular distribution, the structure around 1475 MeV/c(2) is found to favor an assignment as the eta(1475) and the mass and width for the structure around 1835 MeV/c(2) are consistent with the X(1835). The statistical significances of the two structures are 13.5 sigma and 6.3 sigma, respectively. The results indicate that both eta(1475) and X(1835) contain a sizeable s (s) over bar component. |
Description: | Çalışmada 434 yazar bulunmaktadır. Bu yazarlardan sadece Bursa Uludağ Üniversitesi mensuplarının girişleri yapılmıştır. |
URI: | https://doi.org/10.1103/PhysRevD.97.051101 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.97.051101 http://hdl.handle.net/11452/34109 |
ISSN: | 2470-0010 2470-0029 |
Appears in Collections: | Scopus Web of Science |
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