Электронный каталог

Статья

Ablikim, M.
Measurement of Branching Fractions for *L*+&sub(c) *> nK*0&sub(S)*p*+ and *L*+&sub(c) *> nK*0&sub(S)K*+ / M.Ablikim, O.Bakina, I.Boyko, G.Chelkov, D.Dedovich, I.Denysenko, P.Egorov, A.Guskov, Y.Nefedov, A.Sarantsev, A.Zhemchugov, [a.o.] // Physical Review D [Electronic resource]. – 2024. – Vol. 109, No. 7. – P. 072010. – URL: https://doi.org/10.1103/PhysRevD.109.072010. – Bibliogr.: 34.

Based on 4.5 fb−1 of e+e− collision data accumulated at center-of-mass energies between 4599.53 and 4698.82 MeV with the BESIII detector, we measure the absolute branching fraction of the Cabibbo-favored decay Λ*+&sub(c)→nK*0&sub(S)π+ with the precision improved by a factor of 2.8 and report the first evidence for the singly-Cabibbo-suppressed decay Λ+c→nK*0&sub(S)K*+. The branching fractions for Λ+c→nK*0&sub(S)π+ and Λ+c→nK*0&sub(S)K*+ are determined to be (1.86±0.08±0.04)×10−2 and (3.9&sup(+1.7)&sub(−1.4)±0.3)×10*−*4 , respectively, where the first uncertainties are statistical and the second ones are systematic.



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