Newly observed D_{sJ}(3040) and the radial excitations of P-wave charmed-strange mesons

Understand

Inspired by the newly observed $D_{sJ}(3040)^+$ state, in this work we systemically study the two-body strong decays of P-wave charmed-strange mesons with the first radial excitation.

• Under the assignment of $1^{+}(j^P=1/2^+)$, i.e.
• the first radial excitation of $D_{s1}(2460)^+$, we find that the width of $D_{sJ}(3040)^+$ is close to the lower limit of the BaBar measurement.
• This indicates that it is reasonable to interpret $D_{sJ}(3040)^+$ as the first radial excitation of $D_{s1}(2460)^+$.