Search for hadronic transition X<subscript>cJ</subscript> → η<subscript>c</subscript>π<superscript>+</superscript>π<superscript>-</superscript> and observation of X<subscript>cJ</subscript> --> KKπππ.
In: Physical Review D: Particles, Fields, Gravitation & Cosmology, Jg. 87 (2013), Heft 1, S. 1-13
serialPeriodical
Zugriff:
Hadronic transitions of Xcj ηcπ+π- (J = 0, 1, 2) are searched for using a sample of 1.06 × 108 ѱ(3686) events collected with the BESIII detector at the BEPCII storage ring. The ηc is reconstructed with K0S K±π+ and K+ K-π0 final states. No signals are observed in any of the three Xcj states in either ηc decay mode. At the 90% confidence level, the upper limits are determined to be B(Xc0 → ηcπ+π-) < 0.07%, B(Xc1 → ηc;π+π-) < 0.32%, and B(Xc2 →π+π-) < 0.54%. The upper limit of B(Xc1 → π+π-) is lower than the existing theoretical prediction by almost an order of magnitude. The branching fractions of Xcj → K0SK±π∓π+π-K+K-ωK+K- and ɸπ+ π- (J = 0,1,2) are measured for the first time. [ABSTRACT FROM AUTHOR]
Titel: |
Search for hadronic transition X<subscript>cJ</subscript> → η<subscript>c</subscript>π<superscript>+</superscript>π<superscript>-</superscript> and observation of X<subscript>cJ</subscript> --> KKπππ.
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Zeitschrift: | Physical Review D: Particles, Fields, Gravitation & Cosmology, Jg. 87 (2013), Heft 1, S. 1-13 |
Veröffentlichung: | 2013 |
Medientyp: | serialPeriodical |
ISSN: | 2470-0010 (print) |
DOI: | 10.1103/PhysRevD.87.012002 |
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