Yayın: Observation of chi(cJ) decays to Lambda(Lambda)over-bar pi(+)pi(-)
Dosyalar
Tarih
Kurum Yazarları
Tapan, İlhan
Yazarlar
Ablikim, M.
Achasov, Mikhail N.
Ambrose, D. J.
An, Fenfen F.
An, Q.
An, Z. H.
Bai, J. Z.
Ban, Y.
Becker, J.
Bennett, J. V.
Danışman
Dil
Türü
Yayıncı:
Amer Physical
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Özet
Decays of the chi(cJ) states (J = 0, 1, 2) to Lambda(Lambda) over bar pi(+)pi(-), including processes with intermediate Sigma(1385), are studied through the E1 transition psi(1) -> gamma chi(cJ) using 106 x 10(6) psi(1) events collected with the BESIII detector at BEPCII. This is the first observation of chi(cJ) decays to the final state Lambda(Lambda) over bar pi(+)pi(-). The branching ratio of the intermediate process chi(cJ) -> (Sigma) over bar (1385)(+/-) (Sigma) over bar (1385)(-/+) is also measured for the first time, and the results agree with the theoretical predictions based on the color-octet effect.
Açıklama
Kaynak:
Anahtar Kelimeler:
Konusu
Astronomy & astrophysics, Physics
Alıntı
Ablikim, M. vd. (2012). "Observation of chi(cJ) decays to Lambda(Lambda)over-bar pi(+)pi(-)". Physical Review D, 86(5), 1-17.