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Properties of Z(c)(...
Properties of Z(c)(+/-)(3900) produced in p(p)over-bar collisions
- Article/chapterEnglish2019
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AMER PHYSICAL SOC,2019
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electronicrdacarrier
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LIBRIS-ID:oai:DiVA.org:uu-392581
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-392581URI
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https://doi.org/10.1103/PhysRevD.100.012005DOI
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Language:English
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Summary in:English
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For complete list of authors see http://dx.doi.org/10.1103/PhysRevD.100.012005
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We study the production of the exotic charged charmoniumlike state Z(c)(+/-)(3900) in p (p) over bar collisions through the sequential process psi(4260) -> Z(c)(+/-)(3900)(pi)(-/+), Z(c)(+/-)(3900) -> J/psi pi(+/-). Using the subsample of candidates originating from semi-inclusive weak decays of b-flavored hadrons, we measure the invariant mass and natural width to be M = 3902.6(-5.0)(+5.2)(stat)(-1.4)(+3.3)(syst) MeV and Gamma = 32(-21)(+28)(stat)(-7)(+26)(syst) MeV, respectively. We search for prompt production of the Z(c)(+/-)(3900) through the same sequential process. No significant signal is observed, and we set an upper limit of 0.70 at the 95% credibility level on the ratio of prompt production to the production via b-hadron decays. The study is based on 10.4 fb(-1) of p (p) over bar collision data collected by the D0 experiment at the Fermilab Tevatron collider.
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Buszello, Claus PUppsala universitet,Högenergifysik(Swepub:uu)clabu867
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Zivkovic, L.
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Uppsala universitetHögenergifysik
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In:Physical Review D: AMER PHYSICAL SOC100:12470-00102470-0029
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