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DOI: 10.5445/IR/1000084538
Veröffentlicht am 30.07.2018

Search for Υ(1S,2S)→Z⁺$_{c}$Z$_{c}$$^{(')⁻}$ and e⁺e⁻→Z⁺$_{c}$Z$_{c}$$^{(')⁻}$ at √s=10.52, 10.58, and 10.867 GeV

Belle Collaboration; Jia, S.; Shen, C. P.; Yuan, C. Z.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bansal, V.; Behera, P.; Beleño, C.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bozek, A.; Bračko, M.; ... mehr

The first search for double charged charmoniumlike state production in Υ(1S) and Υ(2S) decays and in e+e− annihilation at s√=10.52, 10.58, and 10.867 GeV is conducted using data collected with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant signals are observed in any of the studied modes, and the 90% credibility level upper limits on their product branching fractions in Υ(1S) and Υ(2S) decays [B(Υ(1S,2S)→Z+cZ(')−c)×B(Z+c→π++cc¯) (cc¯=J/ψ, χc1(1P), ψ(2S))] and the product of Born cross section and branching fraction for e+e−→Z+cZ(')−c (σ(e+e−→Z+cZ(')−c)×B(Z+c→π++cc¯)) at s√=10.52, 10.58, and 10.867 GeV are determined. Here, Zc refers to the Zc(3900) and Zc(4200) observed in the πJ/ψ final state, the Zc1(4050) and Zc2(4250) in the πχc1(1P) final state, and the Zc(4050) and Zc(4430) in the πψ(2S) final state.

Zugehörige Institution(en) am KIT Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 2470-0010, 2470-0029
URN: urn:nbn:de:swb:90-845383
KITopen-ID: 1000084538
Erschienen in Physical review / D
Band 97
Heft 11
Seiten Article: 112004
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 14.06.2018
Nachgewiesen in Scopus
Web of Science
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