TY - JOUR
T1 - Study of the Decay and Production Properties of and 𝐷* 𝑠2(2573)
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Adlarson, P.
AU - Ai, X. C.
AU - Aliberti, R.
AU - Kalantar-Nayestanaki, N.
AU - Kavatsyuk, M.
AU - Messchendorp, J.
PY - 2024/10/25
Y1 - 2024/10/25
N2 - The 𝑒+𝑒−→𝐷+𝑠𝐷𝑠1(2536)− and 𝑒+𝑒−→𝐷+𝑠𝐷*𝑠2(2573)− processes are studied using data samples collected with the BESIII detector at center-of-mass energies from 4.530 to 4.946 GeV. The absolute branching fractions of 𝐷𝑠1(2536)−→¯𝐷*0𝐾− and 𝐷*𝑠2(2573)− →¯𝐷0𝐾− are measured for the first time to be (35.9 ±4.8 ±3.5)% and (37.4 ±3.1 ±4.6)%, respectively. The 𝑒+𝑒− →𝐷+𝑠𝐷𝑠1(2536)− and 𝑒+𝑒− →𝐷+𝑠𝐷*𝑠2(2573)− cross sections are measured, and a resonant structure at around 4.6 GeV with a width of 50 MeV is observed in both processes with a statistical significance of 7.2𝜎 and 15𝜎, respectively. The state is observed for the first time in 𝑒+𝑒−→𝐷+𝑠𝐷*𝑠2(2573)− and could be the 𝑌(4626) found by the Belle oration in the 𝐷+𝑠𝐷𝑠1(2536)− final state, since they have similar masses and widths. There is also evidence for a structure at around 4.75 GeV in both processes.
AB - The 𝑒+𝑒−→𝐷+𝑠𝐷𝑠1(2536)− and 𝑒+𝑒−→𝐷+𝑠𝐷*𝑠2(2573)− processes are studied using data samples collected with the BESIII detector at center-of-mass energies from 4.530 to 4.946 GeV. The absolute branching fractions of 𝐷𝑠1(2536)−→¯𝐷*0𝐾− and 𝐷*𝑠2(2573)− →¯𝐷0𝐾− are measured for the first time to be (35.9 ±4.8 ±3.5)% and (37.4 ±3.1 ±4.6)%, respectively. The 𝑒+𝑒− →𝐷+𝑠𝐷𝑠1(2536)− and 𝑒+𝑒− →𝐷+𝑠𝐷*𝑠2(2573)− cross sections are measured, and a resonant structure at around 4.6 GeV with a width of 50 MeV is observed in both processes with a statistical significance of 7.2𝜎 and 15𝜎, respectively. The state is observed for the first time in 𝑒+𝑒−→𝐷+𝑠𝐷*𝑠2(2573)− and could be the 𝑌(4626) found by the Belle oration in the 𝐷+𝑠𝐷𝑠1(2536)− final state, since they have similar masses and widths. There is also evidence for a structure at around 4.75 GeV in both processes.
U2 - 10.1103/PhysRevLett.133.171903
DO - 10.1103/PhysRevLett.133.171903
M3 - Article
SN - 0031-9007
VL - 133
JO - Physical Review Letters
JF - Physical Review Letters
IS - 17
M1 - 171903
ER -