Электронный каталог

Статья

Ablikim, M.
Measurements of Born Cross Sections for e*+e*- *> *L*+&sub(c)*L^-&sub(c)(2595)*- + c.c. and e*+e*- *> *L*+&sub(c)*L^-&sub(c)(2625)*- + c.c. at *%s=4918.0 and 4950.9 MeV / 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. L071104. – URL: https://doi.org/10.1103/PhysRevD.109.L071104. – Bibliogr.: 49.

Since the discovery of the ground state Λ*+&sub( c) [1,2], abundant excited charmed baryons have been reported in experiment [3]. Studies of their spectroscopy and internal structures provide important information for the under- standing of the chiral symmetry breaking and the heavy quark symmetry [4]. The first two excited states of Λþ c are Λ&sub(c)(2595)*+ and Λ&sub(c)(2625)*+ [5–8]. Under the prediction of the quark model, they correspond to the degenerate pair of P-wave excited states, with spin-parity 1=2− and 3=2−, respectively. In recent years, their exotic properties have attracted much attention in both theory and experiment.



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