Please use this identifier to cite or link to this item:
http://hdl.handle.net/11452/34117
Title: | Search for invisible decays of omega and phi with J/psi data at BESIII |
Authors: | Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü. Tapan, İlhan 8905787000 |
Keywords: | Astronomy & astrophysics Physics |
Issue Date: | 3-Aug-2018 |
Publisher: | Amer Phyical Society |
Citation: | Ablikim, M. vd. (2018). ''Search for invisible decays of omega and phi with J/psi data at BESIII''. Physical Review D, 98(3). |
Abstract: | Using a data sample of (1310.6 +/- 7.0) x 10(6) J/psi events collected with the BESIII detector operating at the BEPCII collider, we perform the first experimental search for invisible decays of a light vector meson (V = omega, phi) via J/psi -> V-eta decays. The decay of eta -> pi(+)pi(-)pi(0) is utilized to tag the V meson decaying into the invisible final state. No evidence for a significant invisible signal is observed, and the upper limits on the ratio of branching fractions at the 90% confidence level are determined to be B(omega -> invisible)/B(omega -> pi(+)pi(-)pi(0)) < 8.1 x 10(-5) and B(phi -> invisible)/B(phi -> K+K-) < 3.4 x 10(-4). By using the world average values of B(omega -> pi(+)pi(-)pi(0) and B(phi -> K+K-,) the upper limits on the decay branching fractions at the 90% confidence level are set as B(omega -> invisible) < 7.3 x 10(-5) and B(phi -> invisible) < 1.7 x 10(-4), respectively. |
Description: | Çalışmada 463 yazar bulunmaktadır. Bu yazarlardan sadece Bursa Uludağ Üniversitesi mensuplarının girişleri yapılmıştır. |
URI: | https://doi.org/10.1103/PhysRevD.98.032001 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.98.032001 http://hdl.handle.net/11452/34117 |
ISSN: | 2470-0010 2470-0029 |
Appears in Collections: | Scopus Web of Science |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Tapan_vd_2018.pdf | 600.98 kB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License