Электронный каталог

Статья

Ablikim, M.
Observation and Branching Fraction Measurement of the Decay J/*q*>p^-*S*+K*0&sub(S) + c.c. / M.Ablikim, O.Bakina, I.Boyko, G.Chelkov, D.Dedovich, I.Denysenko, P.Egorov, A.Guskov, Y.Nefedov, S.Pogodin, A.Sarantsev, A.Zhemchugov, [a.o.] // Physical Review D [Electronic resource]. – 2024. – Vol. 109, No. 1. – P. 012006. – URL: https://doi.org/10.1103/PhysRevD.109.012006. – Bibliogr.: 13.

The first observation of the decays J/ψ→¯pΣ+K0S and J/ψ→p¯Σ−K0S is reported using (10087±44)×106  J/ψ events recorded by the BESIII detector at the BEPCII storage ring. The branching fractions of each channel are determined to be B(J/ψ→¯pΣ+K0S)=(1.361±0.006±0.025)×10−4, and B(J/ψ→p¯Σ−K0S)=(1.352±0.006±0.025)×10−4. The combined result is B(J/ψ→¯pΣ+K0S+c.c.)=(2.725±0.009±0.050)×10−4, where the first uncertainty is statistical and the second systematic. The results presented are in good agreement with the branching fractions of the isospin partner decay J/ψ→pK−¯Σ0+c.c.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 332.7 - Встречные е+е- и мю+мю- пучки