First measurements of chi(cJ) -> Sigma(-)(Sigma)over-bar(+) (J=0,1,2) decays

Kolcu, Onur Buğra; BESIII Collaboration

Göster/Aç

Erişim

info:eu-repo/semantics/openAccessAttribution-NoDerivs 3.0 United Stateshttp://creativecommons.org/licenses/by-nd/3.0/us/

Tarih

2020

Yazar

Kolcu, Onur Buğra
BESIII Collaboration

Üst veri

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Künye

Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Amoroso, A., . . . Collaboration, B. (2020). First measurements of chi(cJ) -> Sigma(-)(Sigma)over-bar(+) (J=0,1,2) decays. Physical Review D, 101(9), 9. doi:10.1103/PhysRevD.101.092002

Özet

We measured the branching fractions of the decays chi(cJ) -> Sigma(-)(Sigma) over bar (+) for the first time using the final states n (n) over bar pi(+)pi(-). The data sample exploited here is 448.1 x 10(6) psi(3686) events collected with BESIII. We find B(chi(cJ) -> Sigma(-)(Sigma) over bar (+)) = (51.3 +/- 2.4 +/- 4.1) x 10(-5), (5.7 +/- 1.4 +/- 0.6) x 10(-5), and (4.4 +/- 1.7 +/- 0.5) x 10(-5), for J = 0, 1, 2, respectively, where the first uncertainties are statistical and the second systematic.