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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

Abstract:
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.

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Verlagsausgabe §
DOI: 10.5445/IR/1000084538
Veröffentlicht am 30.07.2018
Zugehörige Institution(en) am KIT Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 2470-0010, 2470-0029
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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